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f93e0210 RN |
1 | /* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */ |
2 | /* | |
3 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
4 | * | |
5 | * Copyright (C) 2013, Rob Norris <rw_norris@hotmail.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | */ | |
5ab2942c RN |
22 | /* |
23 | * Dependencies in this file can be on anything. | |
24 | * For functions with simple system dependencies put it in util.c | |
25 | */ | |
f93e0210 | 26 | #include <math.h> |
5ab2942c | 27 | #include <glib/gstdio.h> |
f93e0210 | 28 | #include <glib/gi18n.h> |
5ab2942c | 29 | #include <gtk/gtk.h> |
f93e0210 | 30 | |
3f31bec4 | 31 | #include "viking.h" |
f93e0210 | 32 | #include "vikutils.h" |
5ab2942c RN |
33 | #include "globals.h" |
34 | #include "download.h" | |
35 | #include "preferences.h" | |
36 | #include "vikmapslayer.h" | |
37 | #include "settings.h" | |
bc34c059 | 38 | #include "ui_util.h" |
74562734 RN |
39 | #include "dir.h" |
40 | #include "misc/kdtree.h" | |
f93e0210 RN |
41 | |
42 | #define FMT_MAX_NUMBER_CODES 9 | |
43 | ||
44 | /** | |
45 | * vu_trackpoint_formatted_message: | |
46 | * @format_code: String describing the message to generate | |
47 | * @trkpt: The trackpoint for which the message is generated about | |
48 | * @trkpt_prev: A trackpoint (presumed previous) for interpolating values with the other trackpoint (such as speed) | |
49 | * @trk: The track in which the trackpoints reside | |
fee4e142 | 50 | * @climb: Vertical speed (Out of band (i.e. not in a trackpoint) value for display currently only for GPSD usage) |
f93e0210 RN |
51 | * |
52 | * TODO: One day replace this cryptic format code with some kind of tokenizer parsing | |
53 | * thus would make it more user friendly and maybe even GUI controlable. | |
54 | * However for now at least there is some semblance of user control | |
55 | */ | |
fee4e142 | 56 | gchar* vu_trackpoint_formatted_message ( gchar *format_code, VikTrackpoint *trkpt, VikTrackpoint *trkpt_prev, VikTrack *trk, gdouble climb ) |
f93e0210 RN |
57 | { |
58 | if ( !trkpt ) | |
59 | return NULL; | |
60 | ||
61 | gint len = 0; | |
62 | if ( format_code ) | |
63 | len = strlen ( format_code ); | |
64 | if ( len > FMT_MAX_NUMBER_CODES ) | |
65 | len = FMT_MAX_NUMBER_CODES; | |
66 | ||
67 | gchar* values[FMT_MAX_NUMBER_CODES]; | |
68 | int i; | |
69 | for ( i = 0; i < FMT_MAX_NUMBER_CODES; i++ ) { | |
70 | values[i] = '\0'; | |
71 | } | |
72 | ||
73 | gchar *speed_units_str = NULL; | |
74 | vik_units_speed_t speed_units = a_vik_get_units_speed (); | |
75 | switch (speed_units) { | |
76 | case VIK_UNITS_SPEED_MILES_PER_HOUR: | |
77 | speed_units_str = g_strdup ( _("mph") ); | |
78 | break; | |
79 | case VIK_UNITS_SPEED_METRES_PER_SECOND: | |
80 | speed_units_str = g_strdup ( _("m/s") ); | |
81 | break; | |
82 | case VIK_UNITS_SPEED_KNOTS: | |
83 | speed_units_str = g_strdup ( _("knots") ); | |
84 | break; | |
85 | default: | |
86 | // VIK_UNITS_SPEED_KILOMETRES_PER_HOUR: | |
87 | speed_units_str = g_strdup ( _("km/h") ); | |
88 | break; | |
89 | } | |
90 | ||
91 | gchar *separator = g_strdup ( " | " ); | |
92 | ||
93 | for ( i = 0; i < len; i++ ) { | |
94 | switch ( g_ascii_toupper ( format_code[i] ) ) { | |
95 | case 'G': values[i] = g_strdup ( _("GPSD") ); break; // GPS Preamble | |
96 | case 'K': values[i] = g_strdup ( _("Trkpt") ); break; // Trkpt Preamble | |
97 | ||
98 | case 'S': { | |
99 | gdouble speed = 0.0; | |
100 | gchar *speedtype = NULL; | |
b312b935 | 101 | if ( isnan(trkpt->speed) && trkpt_prev ) { |
f93e0210 | 102 | if ( trkpt->has_timestamp && trkpt_prev->has_timestamp ) { |
2a2a49c2 | 103 | if ( trkpt->timestamp != trkpt_prev->timestamp ) { |
f93e0210 RN |
104 | |
105 | // Work out from previous trackpoint location and time difference | |
106 | speed = vik_coord_diff(&(trkpt->coord), &(trkpt_prev->coord)) / ABS(trkpt->timestamp - trkpt_prev->timestamp); | |
f93e0210 RN |
107 | speedtype = g_strdup ( "*" ); // Interpolated |
108 | } | |
109 | else | |
110 | speedtype = g_strdup ( "**" ); | |
111 | } | |
112 | else | |
113 | speedtype = g_strdup ( "**" ); | |
114 | } | |
115 | else { | |
116 | speed = trkpt->speed; | |
117 | speedtype = g_strdup ( "" ); | |
118 | } | |
2a2a49c2 RN |
119 | switch (speed_units) { |
120 | case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR: | |
121 | speed = VIK_MPS_TO_KPH(speed); | |
122 | break; | |
123 | case VIK_UNITS_SPEED_MILES_PER_HOUR: | |
124 | speed = VIK_MPS_TO_MPH(speed); | |
125 | break; | |
126 | case VIK_UNITS_SPEED_KNOTS: | |
127 | speed = VIK_MPS_TO_KNOTS(speed); | |
128 | break; | |
129 | default: | |
130 | // VIK_UNITS_SPEED_METRES_PER_SECOND: | |
131 | // Already in m/s so nothing to do | |
132 | break; | |
133 | } | |
f93e0210 RN |
134 | |
135 | values[i] = g_strdup_printf ( _("%sSpeed%s %.1f%s"), separator, speedtype, speed, speed_units_str ); | |
136 | g_free ( speedtype ); | |
137 | break; | |
138 | } | |
139 | ||
fee4e142 RN |
140 | case 'B': { |
141 | gdouble speed = 0.0; | |
142 | gchar *speedtype = NULL; | |
143 | if ( isnan(climb) && trkpt_prev ) { | |
144 | if ( trkpt->has_timestamp && trkpt_prev->has_timestamp ) { | |
145 | if ( trkpt->timestamp != trkpt_prev->timestamp ) { | |
146 | // Work out from previous trackpoint altitudes and time difference | |
147 | // 'speed' can be negative if going downhill | |
148 | speed = (trkpt->altitude - trkpt_prev->altitude) / ABS(trkpt->timestamp - trkpt_prev->timestamp); | |
149 | speedtype = g_strdup ( "*" ); // Interpolated | |
150 | } | |
151 | else | |
152 | speedtype = g_strdup ( "**" ); // Unavailable | |
153 | } | |
154 | else | |
155 | speedtype = g_strdup ( "**" ); | |
156 | } | |
157 | else { | |
158 | speed = climb; | |
159 | speedtype = g_strdup ( "" ); | |
160 | } | |
161 | switch (speed_units) { | |
162 | case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR: | |
163 | speed = VIK_MPS_TO_KPH(speed); | |
164 | break; | |
165 | case VIK_UNITS_SPEED_MILES_PER_HOUR: | |
166 | speed = VIK_MPS_TO_MPH(speed); | |
167 | break; | |
168 | case VIK_UNITS_SPEED_KNOTS: | |
169 | speed = VIK_MPS_TO_KNOTS(speed); | |
170 | break; | |
171 | default: | |
172 | // VIK_UNITS_SPEED_METRES_PER_SECOND: | |
173 | // Already in m/s so nothing to do | |
174 | break; | |
175 | } | |
176 | // Go for 2dp as expect low values for vertical speeds | |
177 | values[i] = g_strdup_printf ( _("%sClimb%s %.2f%s"), separator, speedtype, speed, speed_units_str ); | |
178 | g_free ( speedtype ); | |
179 | break; | |
180 | } | |
181 | ||
f93e0210 RN |
182 | case 'A': { |
183 | vik_units_height_t height_units = a_vik_get_units_height (); | |
184 | switch (height_units) { | |
185 | case VIK_UNITS_HEIGHT_FEET: | |
186 | values[i] = g_strdup_printf ( _("%sAlt %dfeet"), separator, (int)round(VIK_METERS_TO_FEET(trkpt->altitude)) ); | |
187 | break; | |
188 | default: | |
189 | //VIK_UNITS_HEIGHT_METRES: | |
190 | values[i] = g_strdup_printf ( _("%sAlt %dm"), separator, (int)round(trkpt->altitude) ); | |
191 | break; | |
192 | } | |
193 | break; | |
194 | } | |
195 | ||
196 | case 'C': { | |
197 | gint heading = isnan(trkpt->course) ? 0 : (gint)round(trkpt->course); | |
198 | values[i] = g_strdup_printf ( _("%sCourse %03d\302\260" ), separator, heading ); | |
199 | break; | |
200 | } | |
201 | ||
202 | case 'P': { | |
203 | if ( trkpt_prev ) { | |
204 | gint diff = (gint) round ( vik_coord_diff ( &(trkpt->coord), &(trkpt_prev->coord) ) ); | |
205 | ||
206 | gchar *dist_units_str = NULL; | |
207 | vik_units_distance_t dist_units = a_vik_get_units_distance (); | |
208 | // expect the difference between track points to be small hence use metres or yards | |
209 | switch (dist_units) { | |
210 | case VIK_UNITS_DISTANCE_MILES: | |
b22233bd | 211 | case VIK_UNITS_DISTANCE_NAUTICAL_MILES: |
f93e0210 RN |
212 | dist_units_str = g_strdup ( _("yards") ); |
213 | break; | |
214 | default: | |
215 | // VIK_UNITS_DISTANCE_KILOMETRES: | |
216 | dist_units_str = g_strdup ( _("m") ); | |
217 | break; | |
218 | } | |
219 | ||
220 | values[i] = g_strdup_printf ( _("%sDistance diff %d%s"), separator, diff, dist_units_str ); | |
221 | ||
222 | g_free ( dist_units_str ); | |
223 | } | |
224 | break; | |
225 | } | |
226 | ||
227 | case 'T': { | |
74562734 | 228 | gchar *msg; |
f93e0210 RN |
229 | if ( trkpt->has_timestamp ) { |
230 | // Compact date time format | |
74562734 | 231 | msg = vu_get_time_string ( &(trkpt->timestamp), "%x %X", &(trkpt->coord), NULL ); |
f93e0210 RN |
232 | } |
233 | else | |
74562734 RN |
234 | msg = g_strdup ("--"); |
235 | values[i] = g_strdup_printf ( _("%sTime %s"), separator, msg ); | |
236 | g_free ( msg ); | |
f93e0210 RN |
237 | break; |
238 | } | |
239 | ||
240 | case 'M': { | |
241 | if ( trkpt_prev ) { | |
242 | if ( trkpt->has_timestamp && trkpt_prev->has_timestamp ) { | |
243 | time_t t_diff = trkpt->timestamp - trkpt_prev->timestamp; | |
244 | values[i] = g_strdup_printf ( _("%sTime diff %lds"), separator, t_diff ); | |
245 | } | |
246 | } | |
247 | break; | |
248 | } | |
249 | ||
250 | case 'X': values[i] = g_strdup_printf ( _("%sNo. of Sats %d"), separator, trkpt->nsats ); break; | |
251 | ||
62525c73 RN |
252 | case 'F': { |
253 | if ( trk ) { | |
254 | // Distance to the end 'Finish' (along the track) | |
255 | gdouble distd = vik_track_get_length_to_trackpoint (trk, trkpt); | |
256 | gdouble diste = vik_track_get_length_including_gaps ( trk ); | |
257 | gdouble dist = diste - distd; | |
258 | gchar *dist_units_str = NULL; | |
259 | vik_units_distance_t dist_units = a_vik_get_units_distance (); | |
260 | switch (dist_units) { | |
261 | case VIK_UNITS_DISTANCE_MILES: | |
262 | dist_units_str = g_strdup ( _("miles") ); | |
263 | dist = VIK_METERS_TO_MILES(dist); | |
264 | break; | |
265 | case VIK_UNITS_DISTANCE_NAUTICAL_MILES: | |
266 | dist_units_str = g_strdup ( _("NM") ); | |
267 | dist = VIK_METERS_TO_NAUTICAL_MILES(dist); | |
268 | break; | |
269 | default: | |
270 | // VIK_UNITS_DISTANCE_KILOMETRES: | |
271 | dist_units_str = g_strdup ( _("km") ); | |
272 | dist = dist / 1000.0; | |
273 | break; | |
274 | } | |
275 | values[i] = g_strdup_printf ( _("%sTo End %.2f%s"), separator, dist, dist_units_str ); | |
276 | g_free ( dist_units_str ); | |
277 | } | |
278 | break; | |
279 | } | |
280 | ||
f93e0210 RN |
281 | case 'D': { |
282 | if ( trk ) { | |
bb77b487 | 283 | // Distance from start (along the track) |
f93e0210 RN |
284 | gdouble distd = vik_track_get_length_to_trackpoint (trk, trkpt); |
285 | gchar *dist_units_str = NULL; | |
286 | vik_units_distance_t dist_units = a_vik_get_units_distance (); | |
f93e0210 RN |
287 | switch (dist_units) { |
288 | case VIK_UNITS_DISTANCE_MILES: | |
289 | dist_units_str = g_strdup ( _("miles") ); | |
290 | distd = VIK_METERS_TO_MILES(distd); | |
291 | break; | |
b22233bd RN |
292 | case VIK_UNITS_DISTANCE_NAUTICAL_MILES: |
293 | dist_units_str = g_strdup ( _("NM") ); | |
294 | distd = VIK_METERS_TO_NAUTICAL_MILES(distd); | |
295 | break; | |
f93e0210 RN |
296 | default: |
297 | // VIK_UNITS_DISTANCE_KILOMETRES: | |
298 | dist_units_str = g_strdup ( _("km") ); | |
299 | distd = distd / 1000.0; | |
300 | break; | |
301 | } | |
302 | values[i] = g_strdup_printf ( _("%sDistance along %.2f%s"), separator, distd, dist_units_str ); | |
303 | g_free ( dist_units_str ); | |
304 | } | |
305 | break; | |
306 | } | |
307 | ||
308 | case 'L': { | |
309 | // Location (Lat/Long) | |
310 | gchar *lat = NULL, *lon = NULL; | |
311 | struct LatLon ll; | |
312 | vik_coord_to_latlon (&(trkpt->coord), &ll); | |
313 | a_coords_latlon_to_string ( &ll, &lat, &lon ); | |
314 | values[i] = g_strdup_printf ( "%s%s %s", separator, lat, lon ); | |
315 | g_free ( lat ); | |
316 | g_free ( lon ); | |
317 | break; | |
318 | } | |
319 | ||
320 | case 'N': // Name of track | |
321 | values[i] = g_strdup_printf ( _("%sTrack: %s"), separator, trk->name ); | |
322 | break; | |
323 | ||
b45865b4 RN |
324 | case 'E': // Name of trackpoint if available |
325 | if ( trkpt->name ) | |
326 | values[i] = g_strdup_printf ( "%s%s", separator, trkpt->name ); | |
327 | else | |
328 | values[i] = g_strdup ( "" ); | |
329 | break; | |
330 | ||
f93e0210 RN |
331 | default: |
332 | break; | |
333 | } | |
334 | } | |
335 | ||
336 | g_free ( separator ); | |
337 | g_free ( speed_units_str ); | |
338 | ||
bb77b487 | 339 | gchar *msg = g_strconcat ( values[0], values[1], values[2], values[3], values[4], values[5], values[6], values[7], values[8], NULL ); |
f93e0210 RN |
340 | |
341 | for ( i = 0; i < FMT_MAX_NUMBER_CODES; i++ ) { | |
342 | if ( values[i] != '\0' ) | |
343 | g_free ( values[i] ); | |
344 | } | |
345 | ||
346 | return msg; | |
347 | } | |
5ab2942c RN |
348 | |
349 | typedef struct { | |
350 | GtkWindow *window; // Layer needed for redrawing | |
351 | gchar *version; // Image list | |
352 | } new_version_thread_data; | |
353 | ||
354 | static gboolean new_version_available_message ( new_version_thread_data *nvtd ) | |
355 | { | |
356 | // Only a simple goto website option is offered | |
357 | // Trying to do an installation update is platform specific | |
358 | if ( a_dialog_yes_or_no ( nvtd->window, | |
359 | _("There is a newer version of Viking available: %s\n\nDo you wish to go to Viking's website now?"), nvtd->version ) ) | |
360 | // NB 'VIKING_URL' redirects to the Wiki, here we want to go the main site. | |
361 | open_url ( nvtd->window, "http://sourceforge.net/projects/viking/" ); | |
362 | ||
363 | g_free ( nvtd->version ); | |
364 | g_free ( nvtd ); | |
365 | return FALSE; | |
366 | } | |
367 | ||
368 | #define VIK_SETTINGS_VERSION_CHECKED_DATE "version_checked_date" | |
369 | ||
370 | static void latest_version_thread ( GtkWindow *window ) | |
371 | { | |
372 | // Need to allow a few redirects, as SF file is often served from different server | |
373 | DownloadMapOptions options = { FALSE, FALSE, NULL, 5, NULL, NULL, NULL }; | |
374 | gchar *filename = a_download_uri_to_tmp_file ( "http://sourceforge.net/projects/viking/files/VERSION", &options ); | |
375 | //gchar *filename = g_strdup ( "VERSION" ); | |
376 | if ( !filename ) { | |
377 | return; | |
378 | } | |
379 | ||
380 | GMappedFile *mf = g_mapped_file_new ( filename, FALSE, NULL ); | |
381 | if ( !mf ) | |
382 | return; | |
383 | ||
384 | gchar *text = g_mapped_file_get_contents ( mf ); | |
385 | ||
386 | gint latest_version = viking_version_to_number ( text ); | |
387 | gint my_version = viking_version_to_number ( VIKING_VERSION ); | |
388 | ||
389 | g_debug ( "The lastest version is: %s", text ); | |
390 | ||
391 | if ( my_version < latest_version ) { | |
392 | new_version_thread_data *nvtd = g_malloc ( sizeof(new_version_thread_data) ); | |
393 | nvtd->window = window; | |
394 | nvtd->version = g_strdup ( text ); | |
395 | gdk_threads_add_idle ( (GSourceFunc) new_version_available_message, nvtd ); | |
396 | } | |
397 | else | |
398 | g_debug ( "Running the lastest version: %s", VIKING_VERSION ); | |
399 | ||
400 | g_mapped_file_unref ( mf ); | |
401 | if ( filename ) { | |
402 | g_remove ( filename ); | |
403 | g_free ( filename ); | |
404 | } | |
405 | ||
406 | // Update last checked time | |
407 | GTimeVal time; | |
408 | g_get_current_time ( &time ); | |
409 | a_settings_set_string ( VIK_SETTINGS_VERSION_CHECKED_DATE, g_time_val_to_iso8601(&time) ); | |
410 | } | |
411 | ||
412 | #define VIK_SETTINGS_VERSION_CHECK_PERIOD "version_check_period_days" | |
413 | ||
414 | /** | |
415 | * vu_check_latest_version: | |
416 | * @window: Somewhere where we may need use the display to inform the user about the version status | |
417 | * | |
418 | * Periodically checks the released latest VERSION file on the website to compare with the running version | |
419 | * | |
420 | */ | |
421 | void vu_check_latest_version ( GtkWindow *window ) | |
422 | { | |
423 | if ( ! a_vik_get_check_version () ) | |
424 | return; | |
425 | ||
426 | gboolean do_check = FALSE; | |
427 | ||
428 | gint check_period; | |
429 | if ( ! a_settings_get_integer ( VIK_SETTINGS_VERSION_CHECK_PERIOD, &check_period ) ) { | |
430 | check_period = 14; | |
431 | } | |
432 | ||
433 | // Get last checked date... | |
434 | GDate *gdate_last = g_date_new(); | |
435 | GDate *gdate_now = g_date_new(); | |
436 | GTimeVal time_last; | |
437 | gchar *last_checked_date = NULL; | |
438 | ||
439 | // When no previous date available - set to do the version check | |
440 | if ( a_settings_get_string ( VIK_SETTINGS_VERSION_CHECKED_DATE, &last_checked_date) ) { | |
441 | if ( g_time_val_from_iso8601 ( last_checked_date, &time_last ) ) { | |
442 | g_date_set_time_val ( gdate_last, &time_last ); | |
443 | } | |
444 | else | |
445 | do_check = TRUE; | |
446 | } | |
447 | else | |
448 | do_check = TRUE; | |
449 | ||
450 | GTimeVal time_now; | |
451 | g_get_current_time ( &time_now ); | |
452 | g_date_set_time_val ( gdate_now, &time_now ); | |
453 | ||
454 | if ( ! do_check ) { | |
455 | // Dates available so do the comparison | |
456 | g_date_add_days ( gdate_last, check_period ); | |
457 | if ( g_date_compare ( gdate_last, gdate_now ) < 0 ) | |
458 | do_check = TRUE; | |
459 | } | |
460 | ||
461 | g_date_free ( gdate_last ); | |
462 | g_date_free ( gdate_now ); | |
463 | ||
464 | if ( do_check ) { | |
465 | #if GLIB_CHECK_VERSION (2, 32, 0) | |
466 | g_thread_try_new ( "latest_version_thread", (GThreadFunc)latest_version_thread, window, NULL ); | |
467 | #else | |
468 | g_thread_create ( (GThreadFunc)latest_version_thread, window, FALSE, NULL ); | |
469 | #endif | |
470 | } | |
471 | } | |
472 | ||
473 | /** | |
474 | * vu_set_auto_features_on_first_run: | |
475 | * | |
476 | * Ask the user's opinion to set some of Viking's default behaviour | |
477 | */ | |
478 | void vu_set_auto_features_on_first_run ( void ) | |
479 | { | |
480 | gboolean auto_features = FALSE; | |
89a7d25f RN |
481 | gboolean set_defaults = FALSE; |
482 | ||
5ab2942c RN |
483 | if ( a_vik_very_first_run () ) { |
484 | ||
485 | GtkWidget *win = gtk_window_new ( GTK_WINDOW_TOPLEVEL ); | |
486 | ||
487 | if ( a_dialog_yes_or_no ( GTK_WINDOW(win), | |
488 | _("This appears to be Viking's very first run.\n\nDo you wish to enable automatic internet features?\n\nIndividual settings can be controlled in the Preferences."), NULL ) ) | |
489 | auto_features = TRUE; | |
89a7d25f RN |
490 | |
491 | // Default to more standard cache layout for new users (well new installs at least) | |
492 | maps_layer_set_cache_default ( VIK_MAPS_CACHE_LAYOUT_OSM ); | |
493 | set_defaults = TRUE; | |
5ab2942c RN |
494 | } |
495 | ||
496 | if ( auto_features ) { | |
497 | // Set Maps to autodownload | |
498 | // Ensure the default is true | |
499 | maps_layer_set_autodownload_default ( TRUE ); | |
89a7d25f | 500 | set_defaults = TRUE; |
5ab2942c RN |
501 | |
502 | // Simplistic repeat of preference settings | |
503 | // Only the name & type are important for setting a preference via this 'external' way | |
504 | ||
505 | // Enable auto add map + | |
506 | // Enable IP lookup | |
507 | VikLayerParam pref_add_map[] = { { VIK_LAYER_NUM_TYPES, VIKING_PREFERENCES_STARTUP_NAMESPACE "add_default_map_layer", VIK_LAYER_PARAM_BOOLEAN, VIK_LAYER_GROUP_NONE, NULL, VIK_LAYER_WIDGET_CHECKBUTTON, NULL, NULL, NULL, NULL, NULL, NULL, }, }; | |
508 | VikLayerParam pref_startup_method[] = { { VIK_LAYER_NUM_TYPES, VIKING_PREFERENCES_STARTUP_NAMESPACE "startup_method", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, NULL, VIK_LAYER_WIDGET_COMBOBOX, NULL, NULL, NULL, NULL, NULL, NULL}, }; | |
509 | ||
510 | VikLayerParamData vlp_data; | |
511 | vlp_data.b = TRUE; | |
512 | a_preferences_run_setparam ( vlp_data, pref_add_map ); | |
513 | ||
514 | vlp_data.u = VIK_STARTUP_METHOD_AUTO_LOCATION; | |
515 | a_preferences_run_setparam ( vlp_data, pref_startup_method ); | |
516 | ||
517 | // Only on Windows make checking for the latest version on by default | |
518 | // For other systems it's expected a Package manager or similar controls the installation, so leave it off | |
519 | #ifdef WINDOWS | |
520 | VikLayerParam pref_startup_version_check[] = { { VIK_LAYER_NUM_TYPES, VIKING_PREFERENCES_STARTUP_NAMESPACE "check_version", VIK_LAYER_PARAM_BOOLEAN, VIK_LAYER_GROUP_NONE, NULL, VIK_LAYER_WIDGET_CHECKBUTTON, NULL, NULL, NULL, NULL, }, }; | |
521 | vlp_data.b = TRUE; | |
522 | a_preferences_run_setparam ( vlp_data, pref_startup_version_check ); | |
523 | #endif | |
524 | ||
525 | // Ensure settings are saved for next time | |
526 | a_preferences_save_to_file (); | |
527 | } | |
89a7d25f RN |
528 | |
529 | // Ensure defaults are saved if changed | |
530 | if ( set_defaults ) | |
531 | a_layer_defaults_save (); | |
5ab2942c | 532 | } |
1b14d0d2 RN |
533 | |
534 | /** | |
535 | * vu_get_canonical_filename: | |
536 | * | |
537 | * Returns: Canonical absolute filename | |
538 | * | |
539 | * Any time a path may contain a relative component, so need to prepend that directory it is relative to | |
540 | * Then resolve the full path to get the normal canonical filename | |
541 | */ | |
542 | gchar *vu_get_canonical_filename ( VikLayer *vl, const gchar *filename ) | |
543 | { | |
544 | gchar *canonical = NULL; | |
545 | if ( !filename ) | |
546 | return NULL; | |
547 | ||
548 | if ( g_path_is_absolute ( filename ) ) | |
549 | canonical = g_strdup ( filename ); | |
550 | else { | |
551 | const gchar *vw_filename = vik_window_get_filename ( VIK_WINDOW_FROM_WIDGET (vl->vvp) ); | |
552 | gchar *dirpath = NULL; | |
553 | if ( vw_filename ) | |
554 | dirpath = g_path_get_dirname ( vw_filename ); | |
555 | else | |
556 | dirpath = g_get_current_dir(); // Fallback - if here then probably can't create the correct path | |
557 | ||
558 | gchar *full = NULL; | |
559 | if ( g_path_is_absolute ( dirpath ) ) | |
560 | full = g_strconcat ( dirpath, G_DIR_SEPARATOR_S, filename, NULL ); | |
561 | else | |
562 | full = g_strconcat ( g_get_current_dir(), G_DIR_SEPARATOR_S, dirpath, G_DIR_SEPARATOR_S, filename, NULL ); | |
563 | ||
564 | canonical = file_realpath_dup ( full ); // resolved | |
565 | g_free ( full ); | |
566 | g_free ( dirpath ); | |
567 | } | |
568 | ||
569 | return canonical; | |
570 | } | |
8ada46de | 571 | |
74562734 RN |
572 | static struct kdtree *kd = NULL; |
573 | ||
574 | static void load_ll_tz_dir ( const gchar *dir ) | |
575 | { | |
576 | gchar *lltz = g_build_filename ( dir, "latlontz.txt", NULL ); | |
577 | if ( g_access(lltz, R_OK) == 0 ) { | |
578 | gchar buffer[4096]; | |
579 | long line_num = 0; | |
580 | FILE *ff = g_fopen ( lltz, "r" ); | |
581 | ||
582 | while ( fgets ( buffer, 4096, ff ) ) { | |
583 | line_num++; | |
584 | gchar **components = g_strsplit (buffer, " ", 3); | |
585 | guint nn = g_strv_length ( components ); | |
586 | if ( nn == 3 ) { | |
587 | double pt[2] = { g_ascii_strtod (components[0], NULL), g_ascii_strtod (components[1], NULL) }; | |
588 | gchar *timezone = g_strchomp ( components[2] ); | |
589 | if ( kd_insert ( kd, pt, timezone ) ) | |
590 | g_critical ( "Insertion problem of %s for line %ld of latlontz.txt", timezone, line_num ); | |
591 | // NB Don't free timezone as it's part of the kdtree data now | |
592 | g_free ( components[0] ); | |
593 | g_free ( components[1] ); | |
594 | } else { | |
595 | g_warning ( "Line %ld of latlontz.txt does not have 3 parts", line_num ); | |
596 | } | |
597 | g_free ( components ); | |
598 | } | |
599 | fclose ( ff ); | |
600 | } | |
601 | g_free ( lltz ); | |
602 | } | |
603 | ||
604 | /** | |
605 | * vu_setup_lat_lon_tz_lookup: | |
606 | * | |
607 | * Can be called multiple times but only initializes the lookup once | |
608 | */ | |
609 | void vu_setup_lat_lon_tz_lookup () | |
610 | { | |
611 | // Only setup once | |
612 | if ( kd ) | |
613 | return; | |
614 | ||
615 | kd = kd_create(2); | |
616 | ||
617 | // Look in the directories of data path | |
618 | gchar **data_dirs = a_get_viking_data_path(); | |
619 | // Process directories in reverse order for priority | |
620 | guint n_data_dirs = g_strv_length ( data_dirs ); | |
621 | for (; n_data_dirs > 0; n_data_dirs--) { | |
622 | load_ll_tz_dir(data_dirs[n_data_dirs-1]); | |
623 | } | |
624 | g_strfreev ( data_dirs ); | |
625 | } | |
626 | ||
627 | /** | |
628 | * vu_finalize_lat_lon_tz_lookup: | |
629 | * | |
630 | * Clear memory used by the lookup. | |
631 | * only call on program exit | |
632 | */ | |
633 | void vu_finalize_lat_lon_tz_lookup () | |
634 | { | |
635 | if ( kd ) { | |
636 | kd_data_destructor ( kd, g_free ); | |
637 | kd_free ( kd ); | |
638 | } | |
639 | } | |
640 | ||
641 | static double dist_sq( double *a1, double *a2, int dims ) { | |
642 | double dist_sq = 0, diff; | |
643 | while( --dims >= 0 ) { | |
644 | diff = (a1[dims] - a2[dims]); | |
645 | dist_sq += diff*diff; | |
646 | } | |
647 | return dist_sq; | |
648 | } | |
649 | ||
650 | static gchar* time_string_adjusted ( time_t *time, gint offset_s ) | |
651 | { | |
652 | time_t *mytime = time; | |
653 | *mytime = *mytime + offset_s; | |
654 | gchar *str = g_malloc ( 64 ); | |
655 | // Append asterisks to indicate use of simplistic model (i.e. no TZ) | |
656 | strftime ( str, 64, "%a %X %x **", gmtime(mytime) ); | |
657 | return str; | |
658 | } | |
659 | ||
660 | static gchar* time_string_tz ( time_t *time, const gchar *format, GTimeZone *tz ) | |
661 | { | |
662 | GDateTime *utc = g_date_time_new_from_unix_utc (*time); | |
663 | GDateTime *local = g_date_time_to_timezone ( utc, tz ); | |
664 | if ( !local ) { | |
665 | g_date_time_unref ( utc ); | |
666 | return NULL; | |
667 | } | |
668 | gchar *str = g_date_time_format ( local, format ); | |
669 | ||
670 | g_date_time_unref ( local ); | |
671 | g_date_time_unref ( utc ); | |
672 | return str; | |
673 | } | |
674 | ||
675 | #define VIK_SETTINGS_NEAREST_TZ_FACTOR "utils_nearest_tz_factor" | |
676 | /** | |
677 | * vu_get_tz_at_location: | |
678 | * | |
679 | * @vc: Position for which the time zone is desired | |
680 | * | |
681 | * Returns: TimeZone string of the nearest known location. String may be NULL. | |
682 | * | |
683 | * Use the k-d tree method (http://en.wikipedia.org/wiki/Kd-tree) to quickly retreive | |
684 | * the nearest location to the given position. | |
685 | */ | |
686 | gchar* vu_get_tz_at_location ( const VikCoord* vc ) | |
687 | { | |
688 | gchar *tz = NULL; | |
689 | if ( !vc || !kd ) | |
690 | return tz; | |
691 | ||
692 | struct LatLon ll; | |
693 | vik_coord_to_latlon ( vc, &ll ); | |
694 | double pt[2] = { ll.lat, ll.lon }; | |
695 | ||
696 | gdouble nearest; | |
697 | if ( !a_settings_get_double(VIK_SETTINGS_NEAREST_TZ_FACTOR, &nearest) ) | |
698 | nearest = 1.0; | |
699 | ||
700 | struct kdres *presults = kd_nearest_range ( kd, pt, nearest ); | |
701 | while( !kd_res_end( presults ) ) { | |
702 | double pos[2]; | |
703 | gchar *ans = (gchar*)kd_res_item ( presults, pos ); | |
704 | // compute the distance of the current result from the pt | |
705 | double dist = sqrt( dist_sq( pt, pos, 2 ) ); | |
706 | if ( dist < nearest ) { | |
707 | //printf( "NEARER node at (%.3f, %.3f, %.3f) is %.3f away is %s\n", pos[0], pos[1], pos[2], dist, ans ); | |
708 | nearest = dist; | |
709 | tz = ans; | |
710 | } | |
711 | kd_res_next ( presults ); | |
712 | } | |
713 | g_debug ( "TZ lookup found %d results - picked %s", kd_res_size(presults), tz ); | |
714 | kd_res_free ( presults ); | |
715 | ||
716 | return tz; | |
717 | } | |
718 | ||
8ada46de RN |
719 | /** |
720 | * vu_get_time_string: | |
721 | * | |
722 | * @time_t: The time of which the string is wanted | |
723 | * @format The format of the time string - such as "%c" | |
724 | * @vc: Position of object for the time output - maybe NULL | |
725 | * (only applicable for VIK_TIME_REF_WORLD) | |
726 | * @tz: TimeZone string - maybe NULL. | |
727 | * (only applicable for VIK_TIME_REF_WORLD) | |
74562734 | 728 | * Useful to pass in the cached value from vu_get_tz_at_location() to save looking it up again for the same position |
8ada46de RN |
729 | * |
730 | * Returns: A string of the time according to the time display property | |
731 | */ | |
732 | gchar* vu_get_time_string ( time_t *time, const gchar *format, const VikCoord* vc, const gchar *tz ) | |
733 | { | |
734 | if ( !format ) return NULL; | |
735 | gchar *str = NULL; | |
736 | switch ( a_vik_get_time_ref_frame() ) { | |
737 | case VIK_TIME_REF_UTC: | |
738 | str = g_malloc ( 64 ); | |
739 | strftime ( str, 64, format, gmtime(time) ); // Always 'GMT' | |
740 | break; | |
741 | case VIK_TIME_REF_WORLD: | |
74562734 RN |
742 | if ( vc && !tz ) { |
743 | // No timezone specified so work it out | |
744 | gchar *mytz = vu_get_tz_at_location ( vc ); | |
745 | if ( mytz ) { | |
746 | GTimeZone *gtz = g_time_zone_new ( mytz ); | |
747 | str = time_string_tz ( time, format, gtz ); | |
748 | g_time_zone_unref ( gtz ); | |
749 | } | |
750 | else { | |
751 | // No results (e.g. could be in the middle of a sea) | |
752 | // Fallback to simplistic method that doesn't take into account Timezones of countries. | |
753 | struct LatLon ll; | |
754 | vik_coord_to_latlon ( vc, &ll ); | |
755 | str = time_string_adjusted ( time, round ( ll.lon / 15.0 ) * 3600 ); | |
756 | } | |
757 | } | |
758 | else { | |
759 | // Use specified timezone | |
760 | GTimeZone *gtz = g_time_zone_new ( tz ); | |
761 | str = time_string_tz ( time, format, gtz ); | |
762 | g_time_zone_unref ( gtz ); | |
8ada46de RN |
763 | } |
764 | break; | |
765 | default: // VIK_TIME_REF_LOCALE | |
766 | str = g_malloc ( 64 ); | |
767 | strftime ( str, 64, format, localtime(time) ); | |
768 | break; | |
769 | } | |
770 | return str; | |
771 | } |