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