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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> | |
0d2b891f | 8 | * Copyright (c) 2012, 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> |
8c00358d | 42 | #ifdef HAVE_MATH_H |
8904c540 | 43 | #include <math.h> |
8c00358d | 44 | #endif |
e3449376 | 45 | #include <time.h> |
8c4f1350 | 46 | |
8c4f1350 EB |
47 | typedef enum { |
48 | tt_unknown = 0, | |
49 | ||
50 | tt_gpx, | |
51 | ||
52 | tt_wpt, | |
6b2f262e | 53 | tt_wpt_cmt, |
8c4f1350 EB |
54 | tt_wpt_desc, |
55 | tt_wpt_name, | |
56 | tt_wpt_ele, | |
f2ef466d RN |
57 | tt_wpt_sym, |
58 | tt_wpt_time, | |
8c4f1350 EB |
59 | tt_wpt_link, /* New in GPX 1.1 */ |
60 | ||
61 | tt_trk, | |
6b2f262e | 62 | tt_trk_cmt, |
8c4f1350 EB |
63 | tt_trk_desc, |
64 | tt_trk_name, | |
65 | ||
0d2b891f RN |
66 | tt_rte, |
67 | ||
8c4f1350 EB |
68 | tt_trk_trkseg, |
69 | tt_trk_trkseg_trkpt, | |
70 | tt_trk_trkseg_trkpt_ele, | |
71 | tt_trk_trkseg_trkpt_time, | |
b45865b4 | 72 | tt_trk_trkseg_trkpt_name, |
a2817d3c QT |
73 | /* extended */ |
74 | tt_trk_trkseg_trkpt_course, | |
75 | tt_trk_trkseg_trkpt_speed, | |
76 | tt_trk_trkseg_trkpt_fix, | |
77 | tt_trk_trkseg_trkpt_sat, | |
bf35388d | 78 | |
4a42b254 T |
79 | tt_trk_trkseg_trkpt_hdop, |
80 | tt_trk_trkseg_trkpt_vdop, | |
81 | tt_trk_trkseg_trkpt_pdop, | |
82 | ||
bf35388d EB |
83 | tt_waypoint, |
84 | tt_waypoint_coord, | |
85 | tt_waypoint_name, | |
8c4f1350 EB |
86 | } tag_type; |
87 | ||
88 | typedef struct tag_mapping { | |
89 | tag_type tag_type; /* enum from above for this tag */ | |
90 | const char *tag_name; /* xpath-ish tag name */ | |
91 | } tag_mapping; | |
92 | ||
0b72c435 OK |
93 | typedef struct { |
94 | GpxWritingOptions *options; | |
95 | FILE *file; | |
96 | } GpxWritingContext; | |
97 | ||
8c4f1350 EB |
98 | /* |
99 | * xpath(ish) mappings between full tag paths and internal identifers. | |
100 | * These appear in the order they appear in the GPX specification. | |
101 | * If it's not a tag we explictly handle, it doesn't go here. | |
102 | */ | |
103 | ||
104 | tag_mapping tag_path_map[] = { | |
8c4f1350 EB |
105 | |
106 | { tt_wpt, "/gpx/wpt" }, | |
bf35388d EB |
107 | |
108 | { tt_waypoint, "/loc/waypoint" }, | |
109 | { tt_waypoint_coord, "/loc/waypoint/coord" }, | |
110 | { tt_waypoint_name, "/loc/waypoint/name" }, | |
111 | ||
8c4f1350 | 112 | { tt_wpt_ele, "/gpx/wpt/ele" }, |
f2ef466d | 113 | { tt_wpt_time, "/gpx/wpt/time" }, |
8c4f1350 | 114 | { tt_wpt_name, "/gpx/wpt/name" }, |
6b2f262e | 115 | { tt_wpt_cmt, "/gpx/wpt/cmt" }, |
8c4f1350 | 116 | { tt_wpt_desc, "/gpx/wpt/desc" }, |
42c2ac3e | 117 | { tt_wpt_sym, "/gpx/wpt/sym" }, |
08b251ec | 118 | { tt_wpt_sym, "/loc/waypoint/type" }, |
8c4f1350 EB |
119 | { tt_wpt_link, "/gpx/wpt/link" }, /* GPX 1.1 */ |
120 | ||
121 | { tt_trk, "/gpx/trk" }, | |
122 | { tt_trk_name, "/gpx/trk/name" }, | |
6b2f262e | 123 | { tt_trk_cmt, "/gpx/trk/cmt" }, |
8c4f1350 EB |
124 | { tt_trk_desc, "/gpx/trk/desc" }, |
125 | { tt_trk_trkseg, "/gpx/trk/trkseg" }, | |
8c4f1350 EB |
126 | { tt_trk_trkseg_trkpt, "/gpx/trk/trkseg/trkpt" }, |
127 | { tt_trk_trkseg_trkpt_ele, "/gpx/trk/trkseg/trkpt/ele" }, | |
128 | { tt_trk_trkseg_trkpt_time, "/gpx/trk/trkseg/trkpt/time" }, | |
b45865b4 | 129 | { tt_trk_trkseg_trkpt_name, "/gpx/trk/trkseg/trkpt/name" }, |
a2817d3c QT |
130 | /* extended */ |
131 | { tt_trk_trkseg_trkpt_course, "/gpx/trk/trkseg/trkpt/course" }, | |
132 | { tt_trk_trkseg_trkpt_speed, "/gpx/trk/trkseg/trkpt/speed" }, | |
133 | { tt_trk_trkseg_trkpt_fix, "/gpx/trk/trkseg/trkpt/fix" }, | |
134 | { tt_trk_trkseg_trkpt_sat, "/gpx/trk/trkseg/trkpt/sat" }, | |
8c4f1350 | 135 | |
4a42b254 T |
136 | { tt_trk_trkseg_trkpt_hdop, "/gpx/trk/trkseg/trkpt/hdop" }, |
137 | { tt_trk_trkseg_trkpt_vdop, "/gpx/trk/trkseg/trkpt/vdop" }, | |
138 | { tt_trk_trkseg_trkpt_pdop, "/gpx/trk/trkseg/trkpt/pdop" }, | |
0d2b891f RN |
139 | |
140 | { tt_rte, "/gpx/rte" }, | |
141 | // NB Route reuses track point feature tags | |
142 | { tt_trk_name, "/gpx/rte/name" }, | |
143 | { tt_trk_cmt, "/gpx/rte/cmt" }, | |
144 | { tt_trk_desc, "/gpx/rte/desc" }, | |
145 | { tt_trk_trkseg_trkpt, "/gpx/rte/rtept" }, | |
b45865b4 | 146 | { tt_trk_trkseg_trkpt_name, "/gpx/rte/rtept/name" }, |
0d2b891f RN |
147 | { tt_trk_trkseg_trkpt_ele, "/gpx/rte/rtept/ele" }, |
148 | ||
8c4f1350 EB |
149 | {0} |
150 | }; | |
151 | ||
152 | static tag_type get_tag(const char *t) | |
153 | { | |
154 | tag_mapping *tm; | |
155 | for (tm = tag_path_map; tm->tag_type != 0; tm++) | |
156 | if (0 == strcmp(tm->tag_name, t)) | |
157 | return tm->tag_type; | |
158 | return tt_unknown; | |
159 | } | |
160 | ||
161 | /******************************************/ | |
162 | ||
163 | tag_type current_tag = tt_unknown; | |
164 | GString *xpath = NULL; | |
165 | GString *c_cdata = NULL; | |
166 | ||
167 | /* current ("c_") objects */ | |
168 | VikTrackpoint *c_tp = NULL; | |
169 | VikWaypoint *c_wp = NULL; | |
170 | VikTrack *c_tr = NULL; | |
171 | ||
172 | gchar *c_wp_name = NULL; | |
173 | gchar *c_tr_name = NULL; | |
174 | ||
175 | /* temporary things so we don't have to create them lots of times */ | |
176 | const gchar *c_slat, *c_slon; | |
177 | struct LatLon c_ll; | |
178 | ||
179 | /* specialty flags / etc */ | |
180 | gboolean f_tr_newseg; | |
181 | guint unnamed_waypoints = 0; | |
182 | guint unnamed_tracks = 0; | |
43e2df3e | 183 | guint unnamed_routes = 0; |
8c4f1350 EB |
184 | |
185 | static const char *get_attr ( const char **attr, const char *key ) | |
186 | { | |
187 | while ( *attr ) { | |
188 | if ( strcmp(*attr,key) == 0 ) | |
189 | return *(attr + 1); | |
190 | attr += 2; | |
191 | } | |
192 | return NULL; | |
193 | } | |
194 | ||
195 | static gboolean set_c_ll ( const char **attr ) | |
196 | { | |
197 | if ( (c_slat = get_attr ( attr, "lat" )) && (c_slon = get_attr ( attr, "lon" )) ) { | |
d1cd12c0 T |
198 | c_ll.lat = g_ascii_strtod(c_slat, NULL); |
199 | c_ll.lon = g_ascii_strtod(c_slon, NULL); | |
8c4f1350 EB |
200 | return TRUE; |
201 | } | |
202 | return FALSE; | |
203 | } | |
204 | ||
205 | static void gpx_start(VikTrwLayer *vtl, const char *el, const char **attr) | |
206 | { | |
bf35388d EB |
207 | static const gchar *tmp; |
208 | ||
8c4f1350 EB |
209 | g_string_append_c ( xpath, '/' ); |
210 | g_string_append ( xpath, el ); | |
211 | current_tag = get_tag ( xpath->str ); | |
212 | ||
213 | switch ( current_tag ) { | |
214 | ||
215 | case tt_wpt: | |
216 | if ( set_c_ll( attr ) ) { | |
217 | c_wp = vik_waypoint_new (); | |
0b9f279d RN |
218 | c_wp->visible = TRUE; |
219 | if ( get_attr ( attr, "hidden" ) ) | |
220 | c_wp->visible = FALSE; | |
8c4f1350 EB |
221 | |
222 | vik_coord_load_from_latlon ( &(c_wp->coord), vik_trw_layer_get_coord_mode ( vtl ), &c_ll ); | |
223 | } | |
224 | break; | |
225 | ||
226 | case tt_trk: | |
0d2b891f | 227 | case tt_rte: |
8c4f1350 | 228 | c_tr = vik_track_new (); |
387ff7ac | 229 | vik_track_set_defaults ( c_tr ); |
0d2b891f | 230 | c_tr->is_route = (current_tag == tt_rte) ? TRUE : FALSE; |
0b9f279d RN |
231 | c_tr->visible = TRUE; |
232 | if ( get_attr ( attr, "hidden" ) ) | |
233 | c_tr->visible = FALSE; | |
8c4f1350 EB |
234 | break; |
235 | ||
236 | case tt_trk_trkseg: | |
237 | f_tr_newseg = TRUE; | |
238 | break; | |
239 | ||
240 | case tt_trk_trkseg_trkpt: | |
241 | if ( set_c_ll( attr ) ) { | |
242 | c_tp = vik_trackpoint_new (); | |
8c4f1350 EB |
243 | vik_coord_load_from_latlon ( &(c_tp->coord), vik_trw_layer_get_coord_mode ( vtl ), &c_ll ); |
244 | if ( f_tr_newseg ) { | |
245 | c_tp->newsegment = TRUE; | |
246 | f_tr_newseg = FALSE; | |
247 | } | |
248 | c_tr->trackpoints = g_list_append ( c_tr->trackpoints, c_tp ); | |
249 | } | |
250 | break; | |
251 | ||
b45865b4 | 252 | case tt_trk_trkseg_trkpt_name: |
8c4f1350 EB |
253 | case tt_trk_trkseg_trkpt_ele: |
254 | case tt_trk_trkseg_trkpt_time: | |
6b2f262e | 255 | case tt_wpt_cmt: |
8c4f1350 EB |
256 | case tt_wpt_desc: |
257 | case tt_wpt_name: | |
258 | case tt_wpt_ele: | |
f2ef466d | 259 | case tt_wpt_time: |
8c4f1350 | 260 | case tt_wpt_link: |
6b2f262e | 261 | case tt_trk_cmt: |
8c4f1350 EB |
262 | case tt_trk_desc: |
263 | case tt_trk_name: | |
264 | g_string_erase ( c_cdata, 0, -1 ); /* clear the cdata buffer */ | |
bf35388d | 265 | break; |
8c4f1350 | 266 | |
bf35388d EB |
267 | case tt_waypoint: |
268 | c_wp = vik_waypoint_new (); | |
bf35388d EB |
269 | c_wp->visible = TRUE; |
270 | break; | |
271 | ||
272 | case tt_waypoint_coord: | |
273 | if ( set_c_ll( attr ) ) | |
274 | vik_coord_load_from_latlon ( &(c_wp->coord), vik_trw_layer_get_coord_mode ( vtl ), &c_ll ); | |
275 | break; | |
276 | ||
277 | case tt_waypoint_name: | |
278 | if ( ( tmp = get_attr(attr, "id") ) ) { | |
279 | if ( c_wp_name ) | |
280 | g_free ( c_wp_name ); | |
281 | c_wp_name = g_strdup ( tmp ); | |
282 | } | |
283 | g_string_erase ( c_cdata, 0, -1 ); /* clear the cdata buffer for description */ | |
284 | break; | |
285 | ||
8c4f1350 EB |
286 | default: break; |
287 | } | |
288 | } | |
289 | ||
290 | static void gpx_end(VikTrwLayer *vtl, const char *el) | |
291 | { | |
dd81e762 | 292 | static GTimeVal tp_time; |
f2ef466d | 293 | static GTimeVal wp_time; |
dd81e762 | 294 | |
8c4f1350 EB |
295 | g_string_truncate ( xpath, xpath->len - strlen(el) - 1 ); |
296 | ||
297 | switch ( current_tag ) { | |
298 | ||
bf35388d | 299 | case tt_waypoint: |
8c4f1350 EB |
300 | case tt_wpt: |
301 | if ( ! c_wp_name ) | |
43e2df3e | 302 | c_wp_name = g_strdup_printf("VIKING_WP%04d", unnamed_waypoints++); |
805d282e EB |
303 | vik_trw_layer_filein_add_waypoint ( vtl, c_wp_name, c_wp ); |
304 | g_free ( c_wp_name ); | |
8c4f1350 EB |
305 | c_wp = NULL; |
306 | c_wp_name = NULL; | |
307 | break; | |
308 | ||
309 | case tt_trk: | |
43e2df3e RN |
310 | if ( ! c_tr_name ) |
311 | c_tr_name = g_strdup_printf("VIKING_TR%03d", unnamed_tracks++); | |
312 | // Delibrate fall through | |
0d2b891f | 313 | case tt_rte: |
8c4f1350 | 314 | if ( ! c_tr_name ) |
43e2df3e | 315 | c_tr_name = g_strdup_printf("VIKING_RT%03d", unnamed_routes++); |
805d282e EB |
316 | vik_trw_layer_filein_add_track ( vtl, c_tr_name, c_tr ); |
317 | g_free ( c_tr_name ); | |
8c4f1350 EB |
318 | c_tr = NULL; |
319 | c_tr_name = NULL; | |
320 | break; | |
321 | ||
322 | case tt_wpt_name: | |
323 | if ( c_wp_name ) | |
324 | g_free ( c_wp_name ); | |
325 | c_wp_name = g_strdup ( c_cdata->str ); | |
326 | g_string_erase ( c_cdata, 0, -1 ); | |
327 | break; | |
328 | ||
329 | case tt_trk_name: | |
330 | if ( c_tr_name ) | |
331 | g_free ( c_tr_name ); | |
332 | c_tr_name = g_strdup ( c_cdata->str ); | |
333 | g_string_erase ( c_cdata, 0, -1 ); | |
334 | break; | |
335 | ||
336 | case tt_wpt_ele: | |
d1cd12c0 | 337 | c_wp->altitude = g_ascii_strtod ( c_cdata->str, NULL ); |
8c4f1350 EB |
338 | g_string_erase ( c_cdata, 0, -1 ); |
339 | break; | |
340 | ||
341 | case tt_trk_trkseg_trkpt_ele: | |
d1cd12c0 | 342 | c_tp->altitude = g_ascii_strtod ( c_cdata->str, NULL ); |
8c4f1350 EB |
343 | g_string_erase ( c_cdata, 0, -1 ); |
344 | break; | |
345 | ||
bf35388d | 346 | case tt_waypoint_name: /* .loc name is really description. */ |
8c4f1350 | 347 | case tt_wpt_desc: |
6b2f262e RN |
348 | vik_waypoint_set_description ( c_wp, c_cdata->str ); |
349 | g_string_erase ( c_cdata, 0, -1 ); | |
350 | break; | |
351 | ||
352 | case tt_wpt_cmt: | |
8c4f1350 EB |
353 | vik_waypoint_set_comment ( c_wp, c_cdata->str ); |
354 | g_string_erase ( c_cdata, 0, -1 ); | |
355 | break; | |
356 | ||
357 | case tt_wpt_link: | |
358 | vik_waypoint_set_image ( c_wp, c_cdata->str ); | |
359 | g_string_erase ( c_cdata, 0, -1 ); | |
360 | break; | |
361 | ||
ea3933fc | 362 | case tt_wpt_sym: { |
fffcc269 | 363 | vik_waypoint_set_symbol ( c_wp, c_cdata->str ); |
42c2ac3e AF |
364 | g_string_erase ( c_cdata, 0, -1 ); |
365 | break; | |
ea3933fc | 366 | } |
42c2ac3e | 367 | |
8c4f1350 | 368 | case tt_trk_desc: |
6b2f262e RN |
369 | vik_track_set_description ( c_tr, c_cdata->str ); |
370 | g_string_erase ( c_cdata, 0, -1 ); | |
371 | break; | |
372 | ||
373 | case tt_trk_cmt: | |
8c4f1350 EB |
374 | vik_track_set_comment ( c_tr, c_cdata->str ); |
375 | g_string_erase ( c_cdata, 0, -1 ); | |
376 | break; | |
377 | ||
f2ef466d RN |
378 | case tt_wpt_time: |
379 | if ( g_time_val_from_iso8601(c_cdata->str, &wp_time) ) { | |
380 | c_wp->timestamp = wp_time.tv_sec; | |
381 | c_wp->has_timestamp = TRUE; | |
382 | } | |
383 | g_string_erase ( c_cdata, 0, -1 ); | |
384 | break; | |
385 | ||
b45865b4 RN |
386 | case tt_trk_trkseg_trkpt_name: |
387 | vik_trackpoint_set_name ( c_tp, c_cdata->str ); | |
388 | g_string_erase ( c_cdata, 0, -1 ); | |
389 | break; | |
390 | ||
8c4f1350 | 391 | case tt_trk_trkseg_trkpt_time: |
dd81e762 GB |
392 | if ( g_time_val_from_iso8601(c_cdata->str, &tp_time) ) { |
393 | c_tp->timestamp = tp_time.tv_sec; | |
8c4f1350 EB |
394 | c_tp->has_timestamp = TRUE; |
395 | } | |
396 | g_string_erase ( c_cdata, 0, -1 ); | |
bf35388d | 397 | break; |
8c4f1350 | 398 | |
a2817d3c | 399 | case tt_trk_trkseg_trkpt_course: |
d1cd12c0 | 400 | c_tp->course = g_ascii_strtod ( c_cdata->str, NULL ); |
a2817d3c QT |
401 | g_string_erase ( c_cdata, 0, -1 ); |
402 | break; | |
403 | ||
404 | case tt_trk_trkseg_trkpt_speed: | |
d1cd12c0 | 405 | c_tp->speed = g_ascii_strtod ( c_cdata->str, NULL ); |
a2817d3c QT |
406 | g_string_erase ( c_cdata, 0, -1 ); |
407 | break; | |
408 | ||
409 | case tt_trk_trkseg_trkpt_fix: | |
a2817d3c QT |
410 | if (!strcmp("2d", c_cdata->str)) |
411 | c_tp->fix_mode = VIK_GPS_MODE_2D; | |
412 | else if (!strcmp("3d", c_cdata->str)) | |
413 | c_tp->fix_mode = VIK_GPS_MODE_3D; | |
414 | else /* TODO: more fix modes here */ | |
415 | c_tp->fix_mode = VIK_GPS_MODE_NOT_SEEN; | |
416 | g_string_erase ( c_cdata, 0, -1 ); | |
417 | break; | |
418 | ||
419 | case tt_trk_trkseg_trkpt_sat: | |
a2817d3c QT |
420 | c_tp->nsats = atoi ( c_cdata->str ); |
421 | g_string_erase ( c_cdata, 0, -1 ); | |
422 | break; | |
423 | ||
4a42b254 | 424 | case tt_trk_trkseg_trkpt_hdop: |
4a42b254 T |
425 | c_tp->hdop = g_strtod ( c_cdata->str, NULL ); |
426 | g_string_erase ( c_cdata, 0, -1 ); | |
427 | break; | |
428 | ||
429 | case tt_trk_trkseg_trkpt_vdop: | |
4a42b254 T |
430 | c_tp->vdop = g_strtod ( c_cdata->str, NULL ); |
431 | g_string_erase ( c_cdata, 0, -1 ); | |
432 | break; | |
433 | ||
434 | case tt_trk_trkseg_trkpt_pdop: | |
4a42b254 T |
435 | c_tp->pdop = g_strtod ( c_cdata->str, NULL ); |
436 | g_string_erase ( c_cdata, 0, -1 ); | |
437 | break; | |
438 | ||
8c4f1350 EB |
439 | default: break; |
440 | } | |
441 | ||
442 | current_tag = get_tag ( xpath->str ); | |
443 | } | |
444 | ||
445 | static void gpx_cdata(void *dta, const XML_Char *s, int len) | |
446 | { | |
447 | switch ( current_tag ) { | |
448 | case tt_wpt_name: | |
449 | case tt_trk_name: | |
450 | case tt_wpt_ele: | |
451 | case tt_trk_trkseg_trkpt_ele: | |
6b2f262e | 452 | case tt_wpt_cmt: |
8c4f1350 | 453 | case tt_wpt_desc: |
42c2ac3e | 454 | case tt_wpt_sym: |
8c4f1350 | 455 | case tt_wpt_link: |
6b2f262e | 456 | case tt_trk_cmt: |
8c4f1350 EB |
457 | case tt_trk_desc: |
458 | case tt_trk_trkseg_trkpt_time: | |
f2ef466d | 459 | case tt_wpt_time: |
b45865b4 | 460 | case tt_trk_trkseg_trkpt_name: |
a2817d3c QT |
461 | case tt_trk_trkseg_trkpt_course: |
462 | case tt_trk_trkseg_trkpt_speed: | |
463 | case tt_trk_trkseg_trkpt_fix: | |
464 | case tt_trk_trkseg_trkpt_sat: | |
4a42b254 T |
465 | case tt_trk_trkseg_trkpt_hdop: |
466 | case tt_trk_trkseg_trkpt_vdop: | |
467 | case tt_trk_trkseg_trkpt_pdop: | |
bf35388d | 468 | case tt_waypoint_name: /* .loc name is really description. */ |
8c4f1350 EB |
469 | g_string_append_len ( c_cdata, s, len ); |
470 | break; | |
471 | ||
472 | default: break; /* ignore cdata from other things */ | |
473 | } | |
474 | } | |
475 | ||
476 | // make like a "stack" of tag names | |
477 | // like gpspoint's separated like /gpx/wpt/whatever | |
478 | ||
efe9a9c3 | 479 | gboolean a_gpx_read_file( VikTrwLayer *vtl, FILE *f ) { |
8c4f1350 EB |
480 | XML_Parser parser = XML_ParserCreate(NULL); |
481 | int done=0, len; | |
efe9a9c3 | 482 | enum XML_Status status = XML_STATUS_ERROR; |
8c4f1350 EB |
483 | |
484 | XML_SetElementHandler(parser, (XML_StartElementHandler) gpx_start, (XML_EndElementHandler) gpx_end); | |
485 | XML_SetUserData(parser, vtl); /* in the future we could remove all global variables */ | |
486 | XML_SetCharacterDataHandler(parser, (XML_CharacterDataHandler) gpx_cdata); | |
487 | ||
488 | gchar buf[4096]; | |
489 | ||
bf35388d | 490 | g_assert ( f != NULL && vtl != NULL ); |
8c4f1350 EB |
491 | |
492 | xpath = g_string_new ( "" ); | |
493 | c_cdata = g_string_new ( "" ); | |
494 | ||
43e2df3e RN |
495 | unnamed_waypoints = 1; |
496 | unnamed_tracks = 1; | |
497 | unnamed_routes = 1; | |
8c4f1350 EB |
498 | |
499 | while (!done) { | |
500 | len = fread(buf, 1, sizeof(buf)-7, f); | |
501 | done = feof(f) || !len; | |
efe9a9c3 | 502 | status = XML_Parse(parser, buf, len, done); |
8c4f1350 EB |
503 | } |
504 | ||
6278ccc6 | 505 | XML_ParserFree (parser); |
8c4f1350 EB |
506 | g_string_free ( xpath, TRUE ); |
507 | g_string_free ( c_cdata, TRUE ); | |
efe9a9c3 GB |
508 | |
509 | return status != XML_STATUS_ERROR; | |
8c4f1350 | 510 | } |
561e6ad0 EB |
511 | |
512 | /**** entitize from GPSBabel ****/ | |
513 | typedef struct { | |
514 | const char * text; | |
515 | const char * entity; | |
516 | int not_html; | |
517 | } entity_types; | |
518 | ||
519 | static | |
520 | entity_types stdentities[] = { | |
521 | { "&", "&", 0 }, | |
522 | { "'", "'", 1 }, | |
523 | { "<", "<", 0 }, | |
524 | { ">", ">", 0 }, | |
525 | { "\"", """, 0 }, | |
526 | { NULL, NULL, 0 } | |
527 | }; | |
528 | ||
529 | void utf8_to_int( const char *cp, int *bytes, int *value ) | |
530 | { | |
531 | if ( (*cp & 0xe0) == 0xc0 ) { | |
532 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
533 | *bytes = 2; | |
534 | *value = ((*cp & 0x1f) << 6) | | |
535 | (*(cp+1) & 0x3f); | |
536 | } | |
537 | else if ( (*cp & 0xf0) == 0xe0 ) { | |
538 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
539 | if ( (*(cp+2) & 0xc0) != 0x80 ) goto dodefault; | |
540 | *bytes = 3; | |
541 | *value = ((*cp & 0x0f) << 12) | | |
542 | ((*(cp+1) & 0x3f) << 6) | | |
543 | (*(cp+2) & 0x3f); | |
544 | } | |
545 | else if ( (*cp & 0xf8) == 0xf0 ) { | |
546 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
547 | if ( (*(cp+2) & 0xc0) != 0x80 ) goto dodefault; | |
548 | if ( (*(cp+3) & 0xc0) != 0x80 ) goto dodefault; | |
549 | *bytes = 4; | |
550 | *value = ((*cp & 0x07) << 18) | | |
551 | ((*(cp+1) & 0x3f) << 12) | | |
552 | ((*(cp+2) & 0x3f) << 6) | | |
553 | (*(cp+3) & 0x3f); | |
554 | } | |
555 | else if ( (*cp & 0xfc) == 0xf8 ) { | |
556 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
557 | if ( (*(cp+2) & 0xc0) != 0x80 ) goto dodefault; | |
558 | if ( (*(cp+3) & 0xc0) != 0x80 ) goto dodefault; | |
559 | if ( (*(cp+4) & 0xc0) != 0x80 ) goto dodefault; | |
560 | *bytes = 5; | |
561 | *value = ((*cp & 0x03) << 24) | | |
562 | ((*(cp+1) & 0x3f) << 18) | | |
563 | ((*(cp+2) & 0x3f) << 12) | | |
564 | ((*(cp+3) & 0x3f) << 6) | | |
565 | (*(cp+4) & 0x3f); | |
566 | } | |
567 | else if ( (*cp & 0xfe) == 0xfc ) { | |
568 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
569 | if ( (*(cp+2) & 0xc0) != 0x80 ) goto dodefault; | |
570 | if ( (*(cp+3) & 0xc0) != 0x80 ) goto dodefault; | |
571 | if ( (*(cp+4) & 0xc0) != 0x80 ) goto dodefault; | |
572 | if ( (*(cp+5) & 0xc0) != 0x80 ) goto dodefault; | |
573 | *bytes = 6; | |
574 | *value = ((*cp & 0x01) << 30) | | |
575 | ((*(cp+1) & 0x3f) << 24) | | |
576 | ((*(cp+2) & 0x3f) << 18) | | |
577 | ((*(cp+3) & 0x3f) << 12) | | |
578 | ((*(cp+4) & 0x3f) << 6) | | |
579 | (*(cp+5) & 0x3f); | |
580 | } | |
581 | else { | |
582 | dodefault: | |
583 | *bytes = 1; | |
584 | *value = (unsigned char)*cp; | |
585 | } | |
586 | } | |
587 | ||
588 | static | |
589 | char * | |
590 | entitize(const char * str) | |
591 | { | |
592 | int elen, ecount, nsecount; | |
593 | entity_types *ep; | |
594 | const char * cp; | |
595 | char * p, * tmp, * xstr; | |
596 | ||
597 | char tmpsub[20]; | |
598 | int bytes = 0; | |
599 | int value = 0; | |
600 | ep = stdentities; | |
601 | elen = ecount = nsecount = 0; | |
602 | ||
603 | /* figure # of entity replacements and additional size. */ | |
604 | while (ep->text) { | |
605 | cp = str; | |
606 | while ((cp = strstr(cp, ep->text)) != NULL) { | |
607 | elen += strlen(ep->entity) - strlen(ep->text); | |
608 | ecount++; | |
609 | cp += strlen(ep->text); | |
610 | } | |
611 | ep++; | |
612 | } | |
613 | ||
614 | /* figure the same for other than standard entities (i.e. anything | |
615 | * that isn't in the range U+0000 to U+007F */ | |
616 | for ( cp = str; *cp; cp++ ) { | |
617 | if ( *cp & 0x80 ) { | |
618 | ||
619 | utf8_to_int( cp, &bytes, &value ); | |
620 | cp += bytes-1; | |
621 | elen += sprintf( tmpsub, "&#x%x;", value ) - bytes; | |
622 | nsecount++; | |
623 | } | |
624 | } | |
625 | ||
626 | /* enough space for the whole string plus entity replacements, if any */ | |
627 | tmp = g_malloc((strlen(str) + elen + 1)); | |
628 | strcpy(tmp, str); | |
629 | ||
630 | /* no entity replacements */ | |
631 | if (ecount == 0 && nsecount == 0) | |
632 | return (tmp); | |
633 | ||
634 | if ( ecount != 0 ) { | |
635 | for (ep = stdentities; ep->text; ep++) { | |
636 | p = tmp; | |
637 | while ((p = strstr(p, ep->text)) != NULL) { | |
638 | elen = strlen(ep->entity); | |
639 | ||
640 | xstr = g_strdup(p + strlen(ep->text)); | |
641 | ||
642 | strcpy(p, ep->entity); | |
643 | strcpy(p + elen, xstr); | |
644 | ||
645 | g_free(xstr); | |
646 | ||
647 | p += elen; | |
648 | } | |
649 | } | |
650 | } | |
651 | ||
652 | if ( nsecount != 0 ) { | |
653 | p = tmp; | |
654 | while (*p) { | |
655 | if ( *p & 0x80 ) { | |
656 | utf8_to_int( p, &bytes, &value ); | |
657 | if ( p[bytes] ) { | |
658 | xstr = g_strdup( p + bytes ); | |
659 | } | |
660 | else { | |
661 | xstr = NULL; | |
662 | } | |
663 | sprintf( p, "&#x%x;", value ); | |
664 | p = p+strlen(p); | |
665 | if ( xstr ) { | |
666 | strcpy( p, xstr ); | |
667 | g_free(xstr); | |
668 | } | |
669 | } | |
670 | else { | |
671 | p++; | |
672 | } | |
673 | } | |
674 | } | |
675 | return (tmp); | |
676 | } | |
677 | /**** end GPSBabel code ****/ | |
678 | ||
679 | /* export GPX */ | |
8904c540 | 680 | |
c9570f86 | 681 | static void gpx_write_waypoint ( VikWaypoint *wp, GpxWritingContext *context ) |
561e6ad0 | 682 | { |
208d2084 RN |
683 | // Don't write invisible waypoints when specified |
684 | if (context->options && !context->options->hidden && !wp->visible) | |
685 | return; | |
686 | ||
0b72c435 | 687 | FILE *f = context->file; |
561e6ad0 | 688 | static struct LatLon ll; |
8904c540 | 689 | gchar *s_lat,*s_lon; |
561e6ad0 EB |
690 | gchar *tmp; |
691 | vik_coord_to_latlon ( &(wp->coord), &ll ); | |
161aa492 EB |
692 | s_lat = a_coords_dtostr( ll.lat ); |
693 | s_lon = a_coords_dtostr( ll.lon ); | |
208d2084 RN |
694 | // NB 'hidden' is not part of any GPX standard - this appears to be a made up Viking 'extension' |
695 | // luckily most other GPX processing software ignores things they don't understand | |
8904c540 GB |
696 | fprintf ( f, "<wpt lat=\"%s\" lon=\"%s\"%s>\n", |
697 | s_lat, s_lon, wp->visible ? "" : " hidden=\"hidden\"" ); | |
698 | g_free ( s_lat ); | |
699 | g_free ( s_lon ); | |
561e6ad0 | 700 | |
c9570f86 RN |
701 | // Sanity clause |
702 | if ( wp->name ) | |
703 | tmp = entitize ( wp->name ); | |
704 | else | |
705 | tmp = g_strdup ("waypoint"); | |
706 | ||
561e6ad0 EB |
707 | fprintf ( f, " <name>%s</name>\n", tmp ); |
708 | g_free ( tmp); | |
709 | ||
710 | if ( wp->altitude != VIK_DEFAULT_ALTITUDE ) | |
8904c540 | 711 | { |
161aa492 | 712 | tmp = a_coords_dtostr ( wp->altitude ); |
8904c540 GB |
713 | fprintf ( f, " <ele>%s</ele>\n", tmp ); |
714 | g_free ( tmp ); | |
715 | } | |
f2ef466d RN |
716 | |
717 | if ( wp->has_timestamp ) { | |
718 | GTimeVal timestamp; | |
719 | timestamp.tv_sec = wp->timestamp; | |
720 | timestamp.tv_usec = 0; | |
721 | ||
722 | gchar *time_iso8601 = g_time_val_to_iso8601 ( ×tamp ); | |
723 | if ( time_iso8601 != NULL ) | |
724 | fprintf ( f, " <time>%s</time>\n", time_iso8601 ); | |
725 | g_free ( time_iso8601 ); | |
726 | } | |
727 | ||
561e6ad0 EB |
728 | if ( wp->comment ) |
729 | { | |
730 | tmp = entitize(wp->comment); | |
6b2f262e RN |
731 | fprintf ( f, " <cmt>%s</cmt>\n", tmp ); |
732 | g_free ( tmp ); | |
733 | } | |
734 | if ( wp->description ) | |
735 | { | |
736 | tmp = entitize(wp->description); | |
561e6ad0 EB |
737 | fprintf ( f, " <desc>%s</desc>\n", tmp ); |
738 | g_free ( tmp ); | |
739 | } | |
740 | if ( wp->image ) | |
741 | { | |
742 | tmp = entitize(wp->image); | |
743 | fprintf ( f, " <link>%s</link>\n", tmp ); | |
744 | g_free ( tmp ); | |
745 | } | |
42c2ac3e AF |
746 | if ( wp->symbol ) |
747 | { | |
748 | tmp = entitize(wp->symbol); | |
72f067ad RN |
749 | if ( a_vik_gpx_export_wpt_sym_name ( ) ) { |
750 | // Lowercase the symbol name | |
751 | gchar *tmp2 = g_utf8_strdown ( tmp, -1 ); | |
752 | fprintf ( f, " <sym>%s</sym>\n", tmp2 ); | |
753 | g_free ( tmp2 ); | |
754 | } | |
755 | else | |
756 | fprintf ( f, " <sym>%s</sym>\n", tmp); | |
42c2ac3e AF |
757 | g_free ( tmp ); |
758 | } | |
759 | ||
561e6ad0 EB |
760 | fprintf ( f, "</wpt>\n" ); |
761 | } | |
762 | ||
0b72c435 | 763 | static void gpx_write_trackpoint ( VikTrackpoint *tp, GpxWritingContext *context ) |
561e6ad0 | 764 | { |
0b72c435 | 765 | FILE *f = context->file; |
561e6ad0 | 766 | static struct LatLon ll; |
4a42b254 | 767 | gchar *s_lat,*s_lon, *s_alt, *s_dop; |
dd81e762 | 768 | gchar *time_iso8601; |
561e6ad0 EB |
769 | vik_coord_to_latlon ( &(tp->coord), &ll ); |
770 | ||
0d2b891f RN |
771 | // No such thing as a rteseg! So make sure we don't put them in |
772 | if ( context->options && !context->options->is_route && tp->newsegment ) | |
561e6ad0 EB |
773 | fprintf ( f, " </trkseg>\n <trkseg>\n" ); |
774 | ||
161aa492 EB |
775 | s_lat = a_coords_dtostr( ll.lat ); |
776 | s_lon = a_coords_dtostr( ll.lon ); | |
0d2b891f | 777 | fprintf ( f, " <%spt lat=\"%s\" lon=\"%s\">\n", (context->options && context->options->is_route) ? "rte" : "trk", s_lat, s_lon ); |
0b72c435 OK |
778 | g_free ( s_lat ); s_lat = NULL; |
779 | g_free ( s_lon ); s_lon = NULL; | |
561e6ad0 | 780 | |
b45865b4 RN |
781 | if (tp->name) { |
782 | gchar *s_name = entitize(tp->name); | |
783 | fprintf ( f, " <name>%s</name>\n", s_name ); | |
784 | g_free(s_name); | |
785 | } | |
786 | ||
0b72c435 | 787 | s_alt = NULL; |
561e6ad0 | 788 | if ( tp->altitude != VIK_DEFAULT_ALTITUDE ) |
8904c540 | 789 | { |
161aa492 | 790 | s_alt = a_coords_dtostr ( tp->altitude ); |
8904c540 | 791 | } |
0b72c435 | 792 | else if ( context->options != NULL && context->options->force_ele ) |
36179a2e OK |
793 | { |
794 | s_alt = a_coords_dtostr ( 0 ); | |
795 | } | |
0b72c435 OK |
796 | if (s_alt != NULL) |
797 | fprintf ( f, " <ele>%s</ele>\n", s_alt ); | |
798 | g_free ( s_alt ); s_alt = NULL; | |
36179a2e | 799 | |
dd81e762 | 800 | time_iso8601 = NULL; |
561e6ad0 | 801 | if ( tp->has_timestamp ) { |
dd81e762 GB |
802 | GTimeVal timestamp; |
803 | timestamp.tv_sec = tp->timestamp; | |
61f37ac9 | 804 | timestamp.tv_usec = 0; |
dd81e762 GB |
805 | |
806 | time_iso8601 = g_time_val_to_iso8601 ( ×tamp ); | |
561e6ad0 | 807 | } |
0b72c435 | 808 | else if ( context->options != NULL && context->options->force_time ) |
36179a2e | 809 | { |
dd81e762 GB |
810 | GTimeVal current; |
811 | g_get_current_time ( ¤t ); | |
36179a2e | 812 | |
dd81e762 | 813 | time_iso8601 = g_time_val_to_iso8601 ( ¤t ); |
36179a2e | 814 | } |
dd81e762 GB |
815 | if ( time_iso8601 != NULL ) |
816 | fprintf ( f, " <time>%s</time>\n", time_iso8601 ); | |
817 | g_free(time_iso8601); | |
818 | time_iso8601 = NULL; | |
36179a2e | 819 | |
ad54cd32 T |
820 | if (!isnan(tp->course)) { |
821 | gchar *s_course = a_coords_dtostr(tp->course); | |
822 | fprintf ( f, " <course>%s</course>\n", s_course ); | |
823 | g_free(s_course); | |
a2817d3c | 824 | } |
ad54cd32 T |
825 | if (!isnan(tp->speed)) { |
826 | gchar *s_speed = a_coords_dtostr(tp->speed); | |
827 | fprintf ( f, " <speed>%s</speed>\n", s_speed ); | |
828 | g_free(s_speed); | |
829 | } | |
830 | if (tp->fix_mode == VIK_GPS_MODE_2D) | |
831 | fprintf ( f, " <fix>2d</fix>\n"); | |
832 | if (tp->fix_mode == VIK_GPS_MODE_3D) | |
833 | fprintf ( f, " <fix>3d</fix>\n"); | |
834 | if (tp->nsats > 0) | |
835 | fprintf ( f, " <sat>%d</sat>\n", tp->nsats ); | |
a2817d3c | 836 | |
4a42b254 T |
837 | s_dop = NULL; |
838 | if ( tp->hdop != VIK_DEFAULT_DOP ) | |
839 | { | |
840 | s_dop = a_coords_dtostr ( tp->hdop ); | |
841 | } | |
842 | if (s_dop != NULL) | |
843 | fprintf ( f, " <hdop>%s</hdop>\n", s_dop ); | |
844 | g_free ( s_dop ); s_dop = NULL; | |
845 | ||
846 | if ( tp->vdop != VIK_DEFAULT_DOP ) | |
847 | { | |
848 | s_dop = a_coords_dtostr ( tp->vdop ); | |
849 | } | |
850 | if (s_dop != NULL) | |
851 | fprintf ( f, " <vdop>%s</vdop>\n", s_dop ); | |
852 | g_free ( s_dop ); s_dop = NULL; | |
853 | ||
854 | if ( tp->pdop != VIK_DEFAULT_DOP ) | |
855 | { | |
856 | s_dop = a_coords_dtostr ( tp->pdop ); | |
857 | } | |
858 | if (s_dop != NULL) | |
859 | fprintf ( f, " <pdop>%s</pdop>\n", s_dop ); | |
860 | g_free ( s_dop ); s_dop = NULL; | |
861 | ||
0d2b891f | 862 | fprintf ( f, " </%spt>\n", (context->options && context->options->is_route) ? "rte" : "trk" ); |
561e6ad0 EB |
863 | } |
864 | ||
865 | ||
ce4bd1cf | 866 | static void gpx_write_track ( VikTrack *t, GpxWritingContext *context ) |
561e6ad0 | 867 | { |
208d2084 RN |
868 | // Don't write invisible tracks when specified |
869 | if (context->options && !context->options->hidden && !t->visible) | |
870 | return; | |
871 | ||
0b72c435 | 872 | FILE *f = context->file; |
561e6ad0 | 873 | gchar *tmp; |
494eb388 | 874 | gboolean first_tp_is_newsegment = FALSE; /* must temporarily make it not so, but we want to restore state. not that it matters. */ |
561e6ad0 | 875 | |
ce4bd1cf RN |
876 | // Sanity clause |
877 | if ( t->name ) | |
878 | tmp = entitize ( t->name ); | |
879 | else | |
880 | tmp = g_strdup ("track"); | |
881 | ||
208d2084 RN |
882 | // NB 'hidden' is not part of any GPX standard - this appears to be a made up Viking 'extension' |
883 | // luckily most other GPX processing software ignores things they don't understand | |
0d2b891f RN |
884 | fprintf ( f, "<%s%s>\n <name>%s</name>\n", |
885 | t->is_route ? "rte" : "trk", | |
886 | t->visible ? "" : " hidden=\"hidden\"", | |
887 | tmp ); | |
561e6ad0 EB |
888 | g_free ( tmp ); |
889 | ||
890 | if ( t->comment ) | |
891 | { | |
892 | tmp = entitize ( t->comment ); | |
6b2f262e RN |
893 | fprintf ( f, " <cmt>%s</cmt>\n", tmp ); |
894 | g_free ( tmp ); | |
895 | } | |
896 | ||
897 | if ( t->description ) | |
898 | { | |
899 | tmp = entitize ( t->description ); | |
561e6ad0 EB |
900 | fprintf ( f, " <desc>%s</desc>\n", tmp ); |
901 | g_free ( tmp ); | |
902 | } | |
0d2b891f RN |
903 | |
904 | /* No such thing as a rteseg! */ | |
905 | if ( !t->is_route ) | |
906 | fprintf ( f, " <trkseg>\n" ); | |
561e6ad0 EB |
907 | |
908 | if ( t->trackpoints && t->trackpoints->data ) { | |
909 | first_tp_is_newsegment = VIK_TRACKPOINT(t->trackpoints->data)->newsegment; | |
910 | VIK_TRACKPOINT(t->trackpoints->data)->newsegment = FALSE; /* so we won't write </trkseg><trkseg> already */ | |
0b72c435 | 911 | g_list_foreach ( t->trackpoints, (GFunc) gpx_write_trackpoint, context ); |
561e6ad0 | 912 | VIK_TRACKPOINT(t->trackpoints->data)->newsegment = first_tp_is_newsegment; /* restore state */ |
494eb388 | 913 | } |
561e6ad0 | 914 | |
0d2b891f RN |
915 | /* NB apparently no such thing as a rteseg! */ |
916 | if (!t->is_route) | |
917 | fprintf ( f, " </trkseg>\n"); | |
918 | ||
919 | fprintf ( f, "</%s>\n", t->is_route ? "rte" : "trk" ); | |
561e6ad0 EB |
920 | } |
921 | ||
5092de80 | 922 | static void gpx_write_header( FILE *f ) |
561e6ad0 EB |
923 | { |
924 | fprintf(f, "<?xml version=\"1.0\"?>\n" | |
925 | "<gpx version=\"1.0\" creator=\"Viking -- http://viking.sf.net/\"\n" | |
926 | "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n" | |
927 | "xmlns=\"http://www.topografix.com/GPX/1/0\"\n" | |
928 | "xsi:schemaLocation=\"http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd\">\n"); | |
5092de80 GB |
929 | } |
930 | ||
931 | static void gpx_write_footer( FILE *f ) | |
932 | { | |
561e6ad0 | 933 | fprintf(f, "</gpx>\n"); |
5092de80 | 934 | } |
561e6ad0 | 935 | |
c9570f86 | 936 | static int gpx_waypoint_compare(const void *x, const void *y) |
eab858a1 | 937 | { |
c9570f86 RN |
938 | VikWaypoint *a = (VikWaypoint *)x; |
939 | VikWaypoint *b = (VikWaypoint *)y; | |
eab858a1 EB |
940 | return strcmp(a->name,b->name); |
941 | } | |
942 | ||
0d2b891f RN |
943 | static int gpx_track_compare_name(const void *x, const void *y) |
944 | { | |
945 | VikTrack *a = (VikTrack *)x; | |
946 | VikTrack *b = (VikTrack *)y; | |
947 | return strcmp(a->name,b->name); | |
948 | } | |
949 | ||
e3449376 | 950 | /* Function to compare two tracks by their first timestamp */ |
0dabdc4f | 951 | static int gpx_track_compare_timestamp (const void *x, const void *y) |
e3449376 | 952 | { |
0dabdc4f RN |
953 | VikTrack *a = (VikTrack *)x; |
954 | VikTrack *b = (VikTrack *)y; | |
955 | ||
956 | VikTrackpoint *tpa = NULL; | |
957 | VikTrackpoint *tpb = NULL; | |
958 | ||
959 | if ( a->trackpoints ) | |
960 | tpa = VIK_TRACKPOINT(g_list_first(a->trackpoints)->data); | |
961 | ||
962 | if ( b->trackpoints ) | |
963 | tpb = VIK_TRACKPOINT(g_list_first(b->trackpoints)->data); | |
964 | ||
965 | if ( tpa && tpb ) { | |
966 | if ( tpa->timestamp < tpb->timestamp ) | |
967 | return -1; | |
968 | if ( tpa->timestamp > tpb->timestamp ) | |
969 | return 1; | |
e3449376 | 970 | } |
0dabdc4f RN |
971 | |
972 | if ( tpa && !tpb ) | |
e3449376 | 973 | return 1; |
0dabdc4f RN |
974 | |
975 | if ( !tpa && tpb ) | |
976 | return -1; | |
977 | ||
e3449376 HR |
978 | return 0; |
979 | } | |
980 | ||
208d2084 | 981 | void a_gpx_write_file ( VikTrwLayer *vtl, FILE *f, GpxWritingOptions *options ) |
0b72c435 OK |
982 | { |
983 | GpxWritingContext context = { options, f }; | |
eab858a1 | 984 | |
5092de80 | 985 | gpx_write_header ( f ); |
eab858a1 | 986 | |
c9570f86 RN |
987 | // gather waypoints in a list, then sort |
988 | // g_hash_table_get_values: glib 2.14+ | |
989 | GList *gl = g_hash_table_get_values ( vik_trw_layer_get_waypoints ( vtl ) ); | |
990 | gl = g_list_sort ( gl, gpx_waypoint_compare ); | |
0b72c435 | 991 | |
c9570f86 RN |
992 | GList *iter; |
993 | for (iter = g_list_first (gl); iter != NULL; iter = g_list_next (iter)) { | |
994 | gpx_write_waypoint ( (VikWaypoint*)iter->data, &context ); | |
995 | } | |
eab858a1 | 996 | |
c9570f86 | 997 | g_list_free ( gl ); |
d13f1a57 | 998 | |
b02cd3a3 RN |
999 | //gl = g_hash_table_get_values ( vik_trw_layer_get_tracks ( vtl ) ); |
1000 | // Forming the list manually seems to produce one that is more likely to be nearer to the creation order | |
62e2f612 | 1001 | gl = NULL; |
b02cd3a3 RN |
1002 | gpointer key, value; |
1003 | GHashTableIter ght_iter; | |
1004 | g_hash_table_iter_init ( &ght_iter, vik_trw_layer_get_tracks ( vtl ) ); | |
1005 | while ( g_hash_table_iter_next (&ght_iter, &key, &value) ) { | |
1006 | gl = g_list_prepend ( gl ,value ); | |
1007 | } | |
1008 | gl = g_list_reverse ( gl ); | |
1009 | ||
d13f1a57 RN |
1010 | // Sort method determined by preference |
1011 | if ( a_vik_get_gpx_export_trk_sort() == VIK_GPX_EXPORT_TRK_SORT_TIME ) | |
1012 | gl = g_list_sort ( gl, gpx_track_compare_timestamp ); | |
b02cd3a3 | 1013 | else if ( a_vik_get_gpx_export_trk_sort() == VIK_GPX_EXPORT_TRK_SORT_ALPHA ) |
d13f1a57 RN |
1014 | gl = g_list_sort ( gl, gpx_track_compare_name ); |
1015 | ||
0d2b891f RN |
1016 | // Routes sorted by name |
1017 | GList *glrte = g_hash_table_get_values ( vik_trw_layer_get_routes ( vtl ) ); | |
1018 | glrte = g_list_sort ( glrte, gpx_track_compare_name ); | |
ce4bd1cf | 1019 | |
0d2b891f RN |
1020 | // g_list_concat doesn't copy memory properly |
1021 | // so process each list separately | |
1022 | ||
1023 | GpxWritingContext context_tmp = context; | |
1024 | GpxWritingOptions opt_tmp = { FALSE, FALSE, FALSE }; | |
1025 | // Force trackpoints on tracks | |
1026 | if ( !context.options ) | |
1027 | context_tmp.options = &opt_tmp; | |
1028 | context_tmp.options->is_route = FALSE; | |
1029 | ||
1030 | // Loop around each list and write each one | |
ce4bd1cf | 1031 | for (iter = g_list_first (gl); iter != NULL; iter = g_list_next (iter)) { |
0d2b891f RN |
1032 | gpx_write_track ( (VikTrack*)iter->data, &context_tmp ); |
1033 | } | |
1034 | ||
1035 | // Routes (to get routepoints) | |
1036 | context_tmp.options->is_route = TRUE; | |
1037 | for (iter = g_list_first (glrte); iter != NULL; iter = g_list_next (iter)) { | |
1038 | gpx_write_track ( (VikTrack*)iter->data, &context_tmp ); | |
e3449376 | 1039 | } |
ce4bd1cf RN |
1040 | |
1041 | g_list_free ( gl ); | |
0d2b891f | 1042 | g_list_free ( glrte ); |
ce4bd1cf | 1043 | |
5092de80 GB |
1044 | gpx_write_footer ( f ); |
1045 | } | |
561e6ad0 | 1046 | |
208d2084 | 1047 | void a_gpx_write_track_file ( VikTrack *trk, FILE *f, GpxWritingOptions *options ) |
0b72c435 OK |
1048 | { |
1049 | GpxWritingContext context = {options, f}; | |
5092de80 | 1050 | gpx_write_header ( f ); |
ce4bd1cf | 1051 | gpx_write_track ( trk, &context ); |
5092de80 | 1052 | gpx_write_footer ( f ); |
561e6ad0 | 1053 | } |