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Fixed map crash if cache list is empty
1 | /* |
2 | * Copyright (C) 2008-2009 Till Harbaum <till@harbaum.org>. |
3 | * |
4 | * This file is part of GPXView. |
5 | * |
6 | * GPXView is free software: you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by |
8 | * the Free Software Foundation, either version 3 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * GPXView is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU General Public License |
17 | * along with GPXView. If not, see <http://www.gnu.org/licenses/>. |
18 | */ |
19 | |
20 | /* |
21 | * http://topo.geofabrik.de/relief/${z}/${x}/${y}.png 8-15 |
22 | * http://topo.geofabrik.de/trail/${z}/${x}/${y}.png 8-15 |
23 | */ |
24 | |
25 | /* |
26 | * TODO: |
27 | * - make semi-transparent caches selectable |
28 | */ |
29 | |
30 | #include "gpxview.h" |
31 | #include "converter.h" |
32 | #include <math.h> // for isnan |
33 | |
34 | #ifdef ENABLE_OSM_GPS_MAP |
35 | #include "osm-gps-map.h" |
36 | #include "osm-gps-map-osd-classic.h" |
37 | #endif |
38 | |
39 | #if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5) |
40 | #include <gdk/gdkx.h> |
41 | #include <X11/Xatom.h> |
42 | #endif |
43 | |
44 | /* default values */ |
45 | #define MAP_SOURCE OSM_GPS_MAP_SOURCE_OPENCYCLEMAP |
46 | #define GPS_DEFAULT_ZOOM 13 |
47 | |
48 | #define PROXY_KEY "/system/http_proxy/" |
49 | |
50 | static const char *get_proxy_uri(appdata_t *appdata) { |
51 | static char proxy_buffer[64] = ""; |
52 | |
53 | /* use environment settings if preset */ |
54 | const char *proxy = g_getenv("http_proxy"); |
55 | if(proxy) { |
56 | printf("map http proxy from env: %s\n", proxy); |
57 | return proxy; |
58 | } |
59 | |
60 | /* ------------- get proxy settings -------------------- */ |
61 | if(gconf_client_get_bool(appdata->gconf_client, |
62 | PROXY_KEY "use_http_proxy", NULL)) { |
63 | |
64 | /* we can savely ignore things like "ignore_hosts" since we */ |
65 | /* are pretty sure not inside the net of one of our map renderers */ |
66 | /* (unless the user works at google :-) */ |
67 | |
68 | /* get basic settings */ |
69 | char *host = |
70 | gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL); |
71 | if(host) { |
72 | int port = |
73 | gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL); |
74 | |
75 | snprintf(proxy_buffer, sizeof(proxy_buffer), |
76 | "http://%s:%u", host, port); |
77 | printf("map http proxy from gconf: %s\n ", proxy_buffer); |
78 | |
79 | g_free(host); |
80 | } |
81 | return proxy_buffer; |
82 | } |
83 | |
84 | return NULL; |
85 | } |
86 | |
87 | static void |
88 | cb_map_gps(osd_button_t but, map_context_t *context) { |
89 | |
90 | if(but == OSD_GPS) { |
91 | printf("clicked OSD_GPS %p\n", context); |
92 | printf("clicked OSD_GPS a %p\n", context->appdata); |
93 | |
94 | pos_t *refpos = get_pos(context->appdata); |
95 | if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) { |
96 | gint zoom; |
97 | g_object_get(OSM_GPS_MAP(context->widget), "zoom", &zoom, NULL); |
98 | if(zoom < 10) |
99 | osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget), |
100 | refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM); |
101 | else |
102 | osm_gps_map_set_center(OSM_GPS_MAP(context->widget), |
103 | refpos->lat, refpos->lon); |
104 | |
105 | /* re-enable centering */ |
106 | g_object_set(context->widget, "auto-center", TRUE, NULL); |
107 | } else { |
108 | /* no coordinates given: display the entire world */ |
109 | osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget), |
110 | 0.0, 0.0, 1); |
111 | } |
112 | } |
113 | } |
114 | |
115 | static int dist2pixel(map_context_t *context, float km, float lat) { |
116 | return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget)); |
117 | } |
118 | |
119 | static gboolean map_gps_update(gpointer data) { |
120 | map_context_t *context = (map_context_t*)data; |
121 | |
122 | #ifdef USE_MAEMO |
123 | if(context->appdata->goto_disable_screensaver) |
124 | if(osso_display_blanking_pause(context->appdata->osso_context) != OSSO_OK) |
125 | fprintf(stderr, "error with display blank\n"); |
126 | #endif |
127 | |
128 | /* get reference position ... */ |
129 | pos_t *refpos = get_pos(context->appdata); |
130 | gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon); |
131 | |
132 | /* ... and enable "goto" button if it's valid */ |
133 | if(ok != context->goto_is_enabled) { |
134 | osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget), |
135 | OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context); |
136 | context->goto_is_enabled = ok; |
137 | } |
138 | |
139 | if(ok) { |
140 | float heading = NAN; |
141 | int radius = 0; |
142 | |
143 | if(context->appdata->use_gps) { |
144 | heading = gps_get_heading(context->appdata); |
145 | |
146 | /* get error */ |
147 | float eph = gps_get_eph(context->appdata); |
148 | if(!isnan(eph)) |
149 | radius = dist2pixel(context, eph/1000, refpos->lat); |
150 | } |
151 | |
152 | /* TODO: in order to save energy: only draw if state actually changed */ |
153 | |
154 | g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL); |
155 | osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget), |
156 | refpos->lat, refpos->lon, heading); |
157 | } else |
158 | osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget)); |
159 | |
160 | return TRUE; |
161 | } |
162 | |
163 | static void map_draw_cache(GtkWidget *map, cache_t *cache, gboolean semi) { |
164 | int type = semi?ICON_CACHE_TYPE_SEMI:ICON_CACHE_TYPE; |
165 | |
166 | GdkPixbuf *icon = icon_get(type, cache->type); |
167 | GdkPixbuf *over = NULL; |
168 | |
169 | if(cache->mine) over = icon_get(type, 14); |
170 | else if(cache->found) over = icon_get(type, 12); |
171 | else if(cache->notes) { |
172 | if(cache->notes->found) over = icon_get(type, 12); |
173 | else if(cache->notes->override) over = icon_get(type, 11); |
174 | else over = icon_get(type, 13); |
175 | } |
176 | |
177 | pos_t *pos = &cache->pos; |
178 | /* check if there's also an overwritten coordinate */ |
179 | if(cache->notes && cache->notes->override) |
180 | pos = &cache->notes->pos; |
181 | |
182 | if(!isnan(pos->lat) && !isnan(pos->lon)) { |
183 | osm_gps_map_add_image(OSM_GPS_MAP(map), |
184 | pos->lat, pos->lon, icon); |
185 | if(over) |
186 | osm_gps_map_add_image(OSM_GPS_MAP(map), |
187 | pos->lat, pos->lon, over); |
188 | } |
189 | } |
190 | |
191 | static void map_draw_wpt(GtkWidget *map, cache_t *cache, wpt_t *wpt) { |
192 | /* only draw wpts that don't equal the main point */ |
193 | if(pos_differ(&cache->pos, &wpt->pos)) { |
194 | if(!isnan(wpt->pos.lat) && !isnan(wpt->pos.lon)) { |
195 | GdkPixbuf *icon = |
196 | icon_get(ICON_WPT, (wpt->sym!=WPT_SYM_UNKNOWN)? |
197 | wpt->sym:WPT_SYM_REFPOINT); |
198 | |
199 | osm_gps_map_add_image(OSM_GPS_MAP(map), |
200 | wpt->pos.lat, wpt->pos.lon, icon); |
201 | } |
202 | } |
203 | } |
204 | |
205 | static void map_draw_gpx(appdata_t *appdata, cache_display_t *caches, |
206 | GtkWidget *map, gpx_t *gpx, |
207 | cache_t *nav, gboolean semi) { |
208 | if(!gpx->notes_loaded) { |
209 | notes_load_all(appdata, gpx); |
210 | gpx->notes_loaded = TRUE; |
211 | } |
212 | |
213 | cache_t *cache = gpx->cache; |
214 | while(cache) { |
215 | /* search if we have that cache already in our list/displayed */ |
216 | int i=0; |
217 | while(caches[i].id && (strcmp(caches[i].id, cache->id) != 0)) |
218 | i++; |
219 | |
220 | if(!caches[i].id) { |
221 | /* if nav is given draw all other caches semitransparent. */ |
222 | /* if nav is not given do what semi sais */ |
223 | map_draw_cache(map, cache, nav?(cache != nav):semi); |
224 | caches[i].id = cache->id; |
225 | |
226 | /* also draw waypoints of nav cache */ |
227 | if(nav && cache == nav) { |
228 | wpt_t *wpt = cache->wpt; |
229 | while(wpt) { |
230 | map_draw_wpt(map, cache, wpt); |
231 | wpt = wpt->next; |
232 | } |
233 | } |
234 | } |
235 | |
236 | cache = cache->next; |
237 | } |
238 | } |
239 | |
240 | static cache_t *cache_search_first(gpx_t *gpx, cache_t *cache) { |
241 | while(gpx) { |
242 | cache_t *cur = gpx->cache; |
243 | while(cur) { |
244 | /* we do a string comparision to make sure that if copies */ |
245 | /* exist, we get the original one */ |
246 | if(!strcmp(cache->id, cur->id)) |
247 | return cur; |
248 | |
249 | cur = cur->next; |
250 | } |
251 | gpx = gpx->next; |
252 | } |
253 | g_assert(FALSE); |
254 | return NULL; |
255 | } |
256 | |
257 | /* draw geocaches and set window title */ |
258 | static void map_setup(map_context_t *context) { |
259 | char *name = NULL; |
260 | |
261 | int cache_num = gpx_total_caches_global(context->appdata->gpx); |
262 | |
263 | if(context->caches_displayed && (cache_num != context->cache_list_len)) { |
264 | // printf("re-alloc because %p %d/%d\n", context->caches_displayed, |
265 | // cache_num, context->cache_list_len); |
266 | g_free(context->caches_displayed); |
267 | context->caches_displayed = NULL; |
268 | context->cache_list_len = 0; |
269 | } |
270 | |
271 | /* allocate buffer */ |
272 | if(cache_num && !context->caches_displayed) { |
273 | context->cache_list_len = cache_num; |
274 | context->caches_displayed = g_new0(cache_display_t, cache_num+1); |
275 | printf("allocated space to handle %d map icons\n", cache_num); |
276 | } |
277 | |
278 | if(context->appdata->search_results && !context->appdata->cur_cache) { |
279 | if(context->state != MAP_SEARCH) { |
280 | printf("map_setup(SEARCH)\n"); |
281 | |
282 | /* clear any pending balloon */ |
283 | context->balloon = NULL; |
284 | osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget)); |
285 | |
286 | #ifdef OSD_NAV |
287 | /* no navigation in this mode */ |
288 | osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget)); |
289 | #endif |
290 | |
291 | /* clear all existing cache images */ |
292 | osm_gps_map_clear_images (OSM_GPS_MAP(context->widget)); |
293 | |
294 | if(context->caches_displayed) { |
295 | memset(context->caches_displayed, 0, |
296 | (cache_num+1) * sizeof(cache_display_t)); |
297 | |
298 | /* draw search results and all other gpx files are semi-transparent */ |
299 | map_draw_gpx(context->appdata, context->caches_displayed, |
300 | context->widget, context->appdata->search_results, |
301 | NULL, FALSE); |
302 | |
303 | gpx_t *gpx = context->appdata->gpx; |
304 | while(gpx) { |
305 | map_draw_gpx(context->appdata, context->caches_displayed, |
306 | context->widget, gpx, NULL, TRUE); |
307 | |
308 | gpx = gpx->next; |
309 | } |
310 | } |
311 | name = g_strdup(_("Search results")); |
312 | context->state = MAP_SEARCH; |
313 | } |
314 | } else if(!context->appdata->cur_gpx && !context->appdata->cur_cache) { |
315 | if(context->state != MAP_ALL) { |
316 | printf("map_setup(ALL)\n"); |
317 | |
318 | /* clear any pending balloon */ |
319 | context->balloon = NULL; |
320 | osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget)); |
321 | |
322 | #ifdef OSD_NAV |
323 | /* no navigation in this mode */ |
324 | osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget)); |
325 | #endif |
326 | |
327 | /* clear all existing cache images */ |
328 | osm_gps_map_clear_images (OSM_GPS_MAP(context->widget)); |
329 | if(context->caches_displayed) { |
330 | memset(context->caches_displayed, 0, |
331 | (cache_num+1) * sizeof(cache_display_t)); |
332 | |
333 | /* draw all geocaches and none is semi-transparent */ |
334 | gpx_t *gpx = context->appdata->gpx; |
335 | while(gpx) { |
336 | map_draw_gpx(context->appdata, context->caches_displayed, |
337 | context->widget, gpx, NULL, FALSE); |
338 | gpx = gpx->next; |
339 | } |
340 | |
341 | { |
342 | int i=0; |
343 | while(context->caches_displayed[i].id) i++; |
344 | printf("number of caches actually displayed: %d\n", i); |
345 | } |
346 | } |
347 | name = g_strdup(_("all")); |
348 | context->state = MAP_ALL; |
349 | } |
350 | } else if(!context->appdata->cur_cache) { |
351 | if(context->state != MAP_GPX) { |
352 | printf("map_setup(GPX)\n"); |
353 | |
354 | /* clear any pending balloon */ |
355 | context->balloon = NULL; |
356 | osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget)); |
357 | |
358 | #ifdef OSD_NAV |
359 | /* no navigation in this mode */ |
360 | osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget)); |
361 | #endif |
362 | |
363 | /* clear all existing cache images */ |
364 | osm_gps_map_clear_images (OSM_GPS_MAP(context->widget)); |
365 | if(context->caches_displayed) { |
366 | memset(context->caches_displayed, 0, |
367 | (cache_num+1) * sizeof(cache_display_t)); |
368 | |
369 | /* draw all geocaches and all other gpx files are semi-transparent */ |
370 | map_draw_gpx(context->appdata, context->caches_displayed, |
371 | context->widget, context->appdata->cur_gpx, NULL, FALSE); |
372 | |
373 | gpx_t *gpx = context->appdata->gpx; |
374 | while(gpx) { |
375 | if(gpx != context->appdata->cur_gpx) |
376 | map_draw_gpx(context->appdata, context->caches_displayed, |
377 | context->widget, gpx, NULL, TRUE); |
378 | |
379 | gpx = gpx->next; |
380 | } |
381 | } |
382 | |
383 | name = g_strdup(context->appdata->cur_gpx->name); |
384 | context->state = MAP_GPX; |
385 | } |
386 | } else { |
387 | cache_t *cache = context->appdata->cur_cache; |
388 | |
389 | printf("map_setup(CACHE)\n"); |
390 | |
391 | /* clear any pending balloon */ |
392 | context->balloon = NULL; |
393 | osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget)); |
394 | |
395 | /* clear all existing ccahe images */ |
396 | osm_gps_map_clear_images (OSM_GPS_MAP(context->widget)); |
397 | if(context->caches_displayed) { |
398 | memset(context->caches_displayed, 0, |
399 | (cache_num+1) * sizeof(cache_display_t)); |
400 | |
401 | /* Make sure we really work on the first copy in the list as */ |
402 | /* only this is being used if duplicates exist */ |
403 | cache = cache_search_first(context->appdata->gpx, cache); |
404 | |
405 | /* draw all geocaches and all but selected one are semi-transparent */ |
406 | gpx_t *gpx = context->appdata->gpx; |
407 | while(gpx) { |
408 | map_draw_gpx(context->appdata, context->caches_displayed, |
409 | context->widget, gpx, cache, FALSE); |
410 | gpx = gpx->next; |
411 | } |
412 | } |
413 | |
414 | name = g_strdup(cache->name); |
415 | context->state = MAP_CACHE; |
416 | |
417 | /* navigation in this mode! */ |
418 | pos_t cpos = gpx_cache_pos(cache); |
419 | |
420 | #ifdef OSD_NAV |
421 | osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget), |
422 | context->appdata->imperial, |
423 | cpos.lat, cpos.lon, cache->name); |
424 | #else |
425 | #warning OSD_NAV not defined! |
426 | #endif |
427 | } |
428 | |
429 | /* also mark geomath position */ |
430 | |
431 | /* remove all existing appearances of this icon first */ |
432 | osm_gps_map_remove_image(OSM_GPS_MAP(context->widget), |
433 | icon_get(ICON_MISC, 4)); |
434 | |
435 | if(!isnan(context->appdata->geomath.lat) && |
436 | !isnan(context->appdata->geomath.lon)) { |
437 | |
438 | osm_gps_map_add_image(OSM_GPS_MAP(context->widget), |
439 | context->appdata->geomath.lat, |
440 | context->appdata->geomath.lon, |
441 | icon_get(ICON_MISC, 4)); |
442 | } |
443 | |
444 | if(name) { |
445 | gtk_window_set_title(GTK_WINDOW(context->window), name); |
446 | g_free(name); |
447 | } else |
448 | printf("map_setup(keep)\n"); |
449 | } |
450 | |
451 | static void |
452 | map_cachelist_nearest(cache_t *cache, pos_t *pos, |
453 | cache_t **result, float *distance) { |
454 | |
455 | while(cache) { |
456 | pos_t cpos = gpx_cache_pos(cache); |
457 | |
458 | float dist = |
459 | pow(cpos.lat - pos->lat, 2) + |
460 | pow(cpos.lon - pos->lon, 2); |
461 | |
462 | if(!(dist > *distance)) { |
463 | *result = cache; |
464 | *distance = dist; |
465 | } |
466 | |
467 | cache = cache->next; |
468 | } |
469 | } |
470 | |
471 | static cache_t *map_closest(map_context_t *context, pos_t *pos) { |
472 | cache_t *result = NULL; |
473 | float distance = NAN; |
474 | |
475 | if(context->appdata->search_results && !context->appdata->cur_cache) { |
476 | /* search search results */ |
477 | map_cachelist_nearest(context->appdata->search_results->cache, |
478 | pos, &result, &distance); |
479 | } else if(!context->appdata->cur_gpx && !context->appdata->cur_cache) { |
480 | /* search all geocaches */ |
481 | gpx_t *gpx = context->appdata->gpx; |
482 | while(gpx) { |
483 | map_cachelist_nearest(gpx->cache, pos, &result, &distance); |
484 | gpx = gpx->next; |
485 | } |
486 | } else if(context->appdata->cur_gpx) { |
487 | /* search in current gpx file */ |
488 | map_cachelist_nearest(context->appdata->cur_gpx->cache, |
489 | pos, &result, &distance); |
490 | } else |
491 | result = context->appdata->cur_cache; |
492 | |
493 | /* make sure this is the first hit */ |
494 | if(context->caches_displayed) |
495 | result = cache_search_first(context->appdata->gpx, result); |
496 | |
497 | return result; |
498 | } |
499 | |
500 | /* translate between osm-gps-map positions and gpxview ones */ |
501 | pos_t coord2pos(coord_t coo) { |
502 | pos_t pos; |
503 | pos.lat = rad2deg(coo.rlat); |
504 | pos.lon = rad2deg(coo.rlon); |
505 | return pos; |
506 | } |
507 | |
508 | #define CLICK_FUZZ (24) |
509 | |
510 | static gboolean |
511 | on_map_button_press_event(GtkWidget *widget, |
512 | GdkEventButton *event, map_context_t *context) { |
513 | |
514 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); |
515 | |
516 | /* check if we actually clicked parts of the OSD */ |
517 | if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE) |
518 | return FALSE; |
519 | |
520 | /* got a press event without release event? eat it! */ |
521 | if(context->press_on != NULL) { |
522 | printf("PRESS: already\n"); |
523 | return FALSE; |
524 | } |
525 | |
526 | pos_t pos = |
527 | coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y)); |
528 | |
529 | cache_t *nearest = map_closest(context, &pos); |
530 | if(nearest) { |
531 | pos_t cpos = gpx_cache_pos(nearest); |
532 | |
533 | float dist = gpx_pos_get_distance(pos, cpos, FALSE); |
534 | if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) |
535 | context->press_on = nearest; |
536 | } |
537 | |
538 | return FALSE; |
539 | } |
540 | |
541 | static void |
542 | cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) { |
543 | /* convert the pixbuf into something cairo can handle */ |
544 | |
545 | // Create a new ImageSurface |
546 | cairo_surface_t *image_surface = |
547 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
548 | gdk_pixbuf_get_width(buf), |
549 | gdk_pixbuf_get_height(buf)); |
550 | |
551 | // Create the new Context for the ImageSurface |
552 | g_assert(image_surface); |
553 | cairo_t *context = cairo_create(image_surface); |
554 | |
555 | // Draw the image on the new Context |
556 | gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0); |
557 | cairo_paint(context); |
558 | |
559 | // now draw this onto the original context |
560 | cairo_set_source_surface(cr, image_surface, x, y); |
561 | |
562 | cairo_paint(cr); |
563 | } |
564 | |
565 | #ifndef BIG_BALLOONS |
566 | #define ICON_SIZE ICON_CACHE_TYPE |
567 | #else |
568 | #define ICON_SIZE ICON_CACHE_TYPE_1_5X |
569 | #endif |
570 | |
571 | #ifndef BIG_BALLOONS |
572 | #define FONT_SIZE 14.0 |
573 | #else |
574 | #define FONT_SIZE 22.0 |
575 | #endif |
576 | #define LINE_SKIP (FONT_SIZE/4) |
577 | |
578 | |
579 | static void |
580 | balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) { |
581 | printf("balloon event: "); |
582 | |
583 | map_context_t *context = (map_context_t*)data; |
584 | cache_t *cache = context->balloon; |
585 | |
586 | if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) { |
587 | printf("draw\n"); |
588 | |
589 | #if 0 |
590 | /* draw pink background to check clipping */ |
591 | cairo_rectangle (event->data.draw.cr, |
592 | event->data.draw.rect->x-20, event->data.draw.rect->y-20, |
593 | event->data.draw.rect->w+40, event->data.draw.rect->h+40); |
594 | cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3); |
595 | cairo_fill_preserve (event->data.draw.cr); |
596 | cairo_set_line_width (event->data.draw.cr, 0); |
597 | cairo_stroke (event->data.draw.cr); |
598 | #endif |
599 | |
600 | /* leave a little border top and left */ |
601 | gint x = event->data.draw.rect->x, y = event->data.draw.rect->y; |
602 | |
603 | /* draw the cache type icon ... */ |
604 | GdkPixbuf *icon = icon_get(ICON_SIZE, cache->type); |
605 | cairo_draw_pixbuf(event->data.draw.cr, icon, x, y); |
606 | |
607 | if(cache->notes && cache->notes->override) { |
608 | GdkPixbuf *over = icon_get(ICON_SIZE, 11); |
609 | cairo_draw_pixbuf(event->data.draw.cr, over, x, y); |
610 | } |
611 | |
612 | /* ... and right of it the waypoint id */ |
613 | cairo_text_extents_t extents; |
614 | |
615 | if(cache->id) { |
616 | cairo_select_font_face (event->data.draw.cr, "Sans", |
617 | CAIRO_FONT_SLANT_NORMAL, |
618 | CAIRO_FONT_WEIGHT_BOLD); |
619 | |
620 | #ifndef BIG_BALLOONS |
621 | cairo_set_font_size (event->data.draw.cr, 20.0); |
622 | #else |
623 | cairo_set_font_size (event->data.draw.cr, 36.0); |
624 | #endif |
625 | |
626 | cairo_text_extents (event->data.draw.cr, cache->id, &extents); |
627 | |
628 | /* display id right of icon vertically centered */ |
629 | x += gdk_pixbuf_get_width(icon) + 5; |
630 | y += (gdk_pixbuf_get_height(icon) + extents.height)/2; |
631 | cairo_move_to (event->data.draw.cr, x, y); |
632 | cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1); |
633 | cairo_show_text (event->data.draw.cr, cache->id); |
634 | cairo_stroke (event->data.draw.cr); |
635 | |
636 | y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP; |
637 | } else |
638 | y += gdk_pixbuf_get_height(icon); |
639 | |
640 | /* return to the left border and below icon/text */ |
641 | x = event->data.draw.rect->x; |
642 | |
643 | /* everything from here uses the same font */ |
644 | cairo_select_font_face (event->data.draw.cr, "Sans", |
645 | CAIRO_FONT_SLANT_NORMAL, |
646 | CAIRO_FONT_WEIGHT_NORMAL); |
647 | |
648 | cairo_set_font_size (event->data.draw.cr, FONT_SIZE); |
649 | |
650 | if(cache->name) { |
651 | /* draw cache name */ |
652 | cairo_text_extents (event->data.draw.cr, cache->name, &extents); |
653 | cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing); |
654 | cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1); |
655 | cairo_show_text (event->data.draw.cr, cache->name); |
656 | cairo_stroke (event->data.draw.cr); |
657 | |
658 | /* return to the left border and below text */ |
659 | y += LINE_SKIP + FONT_SIZE; |
660 | x = event->data.draw.rect->x; |
661 | } |
662 | |
663 | if(cache->terrain) { |
664 | int text_y = 0, icon_y = 0; |
665 | |
666 | /* draw cache rating */ |
667 | const char *terrain = "Terrain:"; |
668 | icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2)); |
669 | cairo_text_extents (event->data.draw.cr, _(terrain), &extents); |
670 | |
671 | if(gdk_pixbuf_get_height(icon) > FONT_SIZE) |
672 | text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2; |
673 | else |
674 | icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2; |
675 | |
676 | /* draw "Terrain:" string */ |
677 | cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y); |
678 | cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1); |
679 | cairo_show_text (event->data.draw.cr, _(terrain)); |
680 | cairo_stroke (event->data.draw.cr); |
681 | x += extents.width + 2; |
682 | |
683 | /* draw terrain stars */ |
684 | cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y); |
685 | |
686 | x += gdk_pixbuf_get_width(icon) + FONT_SIZE/2; |
687 | } |
688 | |
689 | if(cache->difficulty) { |
690 | int text_y = 0, icon_y = 0; |
691 | |
692 | const char *difficulty = "Difficulty:"; |
693 | icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2)); |
694 | cairo_text_extents (event->data.draw.cr, _(difficulty), &extents); |
695 | |
696 | if(gdk_pixbuf_get_height(icon) > FONT_SIZE) |
697 | text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2; |
698 | else |
699 | icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2; |
700 | |
701 | /* draw "Difficulty:" string */ |
702 | cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y); |
703 | cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1); |
704 | cairo_show_text (event->data.draw.cr, _(difficulty)); |
705 | cairo_stroke (event->data.draw.cr); |
706 | x += extents.width + 2; |
707 | |
708 | cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y); |
709 | } |
710 | |
711 | /* draw container info */ |
712 | /* TODO ... */ |
713 | |
714 | |
715 | } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) { |
716 | printf("click %s event at %d %d\n", |
717 | event->data.click.down?"down":"up", |
718 | event->data.click.x, event->data.click.y); |
719 | |
720 | /* make the main screen jump to that cache */ |
721 | if(!event->data.click.down) { |
722 | if(context->appdata->cur_cache) { |
723 | printf("ERROR: no current cache should be visible!\n"); |
724 | } else { |
725 | gpx_t *is_in = NULL; |
726 | |
727 | if(context->appdata->search_results) { |
728 | printf("click while in \"search results\" view\n"); |
729 | |
730 | is_in = context->appdata->search_results; |
731 | } else if(!context->appdata->cur_gpx) { |
732 | printf("click while in \"all\" view\n"); |
733 | |
734 | /* we first need to figure out which gpx file this cache */ |
735 | /* is in so we can open it first */ |
736 | gpx_t *gpx = context->appdata->gpx; |
737 | while(gpx && !is_in) { |
738 | cache_t *cur = gpx->cache; |
739 | while(cur && !is_in) { |
740 | if(cur == cache) |
741 | is_in = gpx; |
742 | cur = cur->next; |
743 | } |
744 | gpx = gpx->next; |
745 | } |
746 | |
747 | if(is_in) |
748 | gpxlist_goto_cachelist(context->appdata, is_in); |
749 | |
750 | } else { |
751 | printf("click while in \"cachelist\" view\n"); |
752 | |
753 | /* the simple case: there already is an open gpx file and */ |
754 | /* we just jump into the "cache" view */ |
755 | is_in = context->appdata->cur_gpx; |
756 | } |
757 | |
758 | if(is_in) { |
759 | printf("selecting %s in %s\n", |
760 | cache->id, |
761 | context->appdata->search_results? |
762 | context->appdata->search_results->name: |
763 | context->appdata->cur_gpx->name); |
764 | |
765 | cachelist_goto_cache(context->appdata, cache); |
766 | |
767 | /* give focus to main screen (important for maemo) */ |
768 | printf("raising main window\n"); |
769 | gtk_window_present(GTK_WINDOW(context->appdata->window)); |
770 | } |
771 | } |
772 | } |
773 | } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) { |
774 | printf("removed\n"); |
775 | context->balloon = NULL; |
776 | } |
777 | } |
778 | |
779 | static gboolean |
780 | on_map_button_release_event(GtkWidget *widget, |
781 | GdkEventButton *event, map_context_t *context) { |
782 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); |
783 | |
784 | /* in "MAP_CACHE" state only one cache is visible */ |
785 | /* and the map is in navigation mode. the balloon is */ |
786 | /* pretty useless there */ |
787 | if(context->press_on) { |
788 | |
789 | coord_t coo; |
790 | coo = osm_gps_map_get_co_ordinates(map, event->x, event->y); |
791 | |
792 | pos_t pos = |
793 | coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y)); |
794 | |
795 | cache_t *nearest = map_closest(context, &pos); |
796 | if(nearest && nearest == context->press_on) { |
797 | pos_t cpos = gpx_cache_pos(nearest); |
798 | |
799 | float dist = gpx_pos_get_distance(pos, cpos, FALSE); |
800 | if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) { |
801 | |
802 | context->balloon = nearest; |
803 | osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon, |
804 | balloon_cb, context); |
805 | } |
806 | } |
807 | context->press_on = NULL; |
808 | } else { |
809 | /* save new map position */ |
810 | gfloat lat, lon; |
811 | g_object_get(map, "latitude", &lat, "longitude", &lon, NULL); |
812 | context->appdata->map.pos.lat = lat; |
813 | context->appdata->map.pos.lon = lon; |
814 | } |
815 | |
816 | return FALSE; |
817 | } |
818 | |
819 | static void on_window_destroy(GtkWidget *widget, map_context_t *context) { |
820 | appdata_t *appdata = context->appdata; |
821 | |
822 | /* save map parameters */ |
823 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); |
824 | gint zoom; |
825 | g_object_get(map, "zoom", &zoom, NULL); |
826 | context->appdata->map.zoom = zoom; |
827 | |
828 | gfloat lat, lon; |
829 | g_object_get(map, "latitude", &lat, "longitude", &lon, NULL); |
830 | context->appdata->map.pos.lat = lat; |
831 | context->appdata->map.pos.lon = lon; |
832 | |
833 | gint source; |
834 | g_object_get(map, "map-source", &source, NULL); |
835 | context->appdata->map.source = source; |
836 | |
837 | #if MAEMO_VERSION_MAJOR == 5 |
838 | /* restore cur_view */ |
839 | context->appdata->cur_view = context->old_view; |
840 | #endif |
841 | |
842 | gtk_timeout_remove(context->handler_id); |
843 | gps_unregister_callback(appdata, context->cb_id); |
844 | |
845 | if(context->caches_displayed) { |
846 | g_free(context->caches_displayed); |
847 | context->caches_displayed = NULL; |
848 | } |
849 | |
850 | printf("destroy map context\n"); |
851 | g_free(context); |
852 | appdata->map.context = NULL; |
853 | } |
854 | |
855 | #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__) |
856 | /* get access to zoom buttons */ |
857 | static void |
858 | on_window_realize(GtkWidget *widget, gpointer data) { |
859 | if (widget->window) { |
860 | unsigned char value = 1; |
861 | Atom hildon_zoom_key_atom = |
862 | gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"), |
863 | integer_atom = gdk_x11_get_xatom_by_name("INTEGER"); |
864 | Display *dpy = |
865 | GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window)); |
866 | Window w = GDK_WINDOW_XID(widget->window); |
867 | |
868 | XChangeProperty(dpy, w, hildon_zoom_key_atom, |
869 | integer_atom, 8, PropModeReplace, &value, 1); |
870 | } |
871 | } |
872 | #endif |
873 | |
874 | /* on maemo a window is either on top or completely invisible. this */ |
875 | /* means that we only need to update the map window if its raised. */ |
876 | /* on ordinary desktops this is different and we always update */ |
877 | |
878 | static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event, |
879 | gpointer data) { |
880 | map_context_t *context = (map_context_t*)data; |
881 | |
882 | printf("map got focus\n"); |
883 | |
884 | #ifdef USE_MAEMO |
885 | /* re-enable refresh of map */ |
886 | if(!context->handler_id) |
887 | context->handler_id = gtk_timeout_add(1000, map_gps_update, context); |
888 | #endif |
889 | |
890 | map_setup(context); |
891 | return FALSE; |
892 | } |
893 | |
894 | static gboolean on_focus_out(GtkWidget *widget, GdkEventFocus *event, |
895 | gpointer data) { |
896 | map_context_t *context = (map_context_t*)data; |
897 | |
898 | printf("map lost focus\n"); |
899 | |
900 | /* save new map position */ |
901 | gfloat lat, lon; |
902 | g_object_get(widget, "latitude", &lat, "longitude", &lon, NULL); |
903 | |
904 | context->appdata->map.pos.lat = lat; |
905 | context->appdata->map.pos.lon = lon; |
906 | |
907 | #ifdef USE_MAEMO |
908 | gtk_timeout_remove(context->handler_id); |
909 | context->handler_id = 0; |
910 | #endif |
911 | |
912 | return FALSE; |
913 | } |
914 | |
915 | void map_update(appdata_t *appdata) { |
916 | printf("map_update\n"); |
917 | #ifndef USE_MAEMO |
918 | if(appdata->map.context) |
919 | map_setup(appdata->map.context); |
920 | #endif |
921 | } |
922 | |
923 | /* callback called by the gps layer whenever gps state changes */ |
924 | static void |
925 | gps_callback(struct gps_state *state, gpointer data) { |
926 | printf("map: gps callback\n"); |
927 | } |
928 | |
929 | void map(appdata_t *appdata) { |
930 | map_context_t *context = NULL; |
931 | |
932 | /* if the map window already exists, just raise it */ |
933 | if(appdata->map.context) { |
934 | printf("using existing map!\n"); |
935 | gtk_window_present(GTK_WINDOW(appdata->map.context->window)); |
936 | map_setup(appdata->map.context); |
937 | return; |
938 | } |
939 | |
940 | context = appdata->map.context = g_new0(map_context_t, 1); |
941 | printf("allocated new context at %p\n", context); |
942 | |
943 | context->appdata = appdata; |
944 | context->state = MAP_NONE; |
945 | |
946 | /* cleanup old (pre 0.8.7) path if it exists */ |
947 | char *old_path = g_strdup_printf("%s/map/", appdata->image_path); |
948 | if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) { |
949 | printf("old file path %s exists\n", old_path); |
950 | rmdir_recursive(old_path); |
951 | } |
952 | |
953 | /* It is recommanded that all applications share these same */ |
954 | /* map path, so data is only cached once. The path should be: */ |
955 | /* ~/.osm-gps-map on standard PC (users home) */ |
956 | /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */ |
957 | /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */ |
958 | #if !defined(USE_MAEMO) |
959 | char *p = getenv("HOME"); |
960 | if(!p) p = "/tmp"; |
961 | char *path = g_strdup_printf("%s/.osm-gps-map", p); |
962 | #else |
963 | #if MAEMO_VERSION_MAJOR == 5 |
964 | char *path = g_strdup("/home/user/.osm-gps-map"); |
965 | #else |
966 | char *path = g_strdup("/media/mmc2/osm-gps-map"); |
967 | #endif |
968 | #endif |
969 | |
970 | const char *proxy = get_proxy_uri(appdata); |
971 | |
972 | gint source = context->appdata->map.source; |
973 | if(!source) source = MAP_SOURCE; |
974 | |
975 | context->widget = g_object_new(OSM_TYPE_GPS_MAP, |
976 | "map-source", source, |
977 | "tile-cache", path, |
978 | "auto-center", FALSE, |
979 | "record-trip-history", FALSE, |
980 | "show-trip-history", FALSE, |
981 | proxy?"proxy-uri":NULL, proxy, |
982 | NULL); |
983 | |
984 | g_free(path); |
985 | |
986 | osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget)); |
987 | |
988 | /* set default values if they are invalid */ |
989 | if(!context->appdata->map.zoom || |
990 | isnan(context->appdata->map.pos.lat) || |
991 | isnan(context->appdata->map.pos.lon)) { |
992 | printf("no valid map position found\n"); |
993 | |
994 | pos_t *refpos = get_pos(context->appdata); |
995 | if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) { |
996 | printf("use refpos\n"); |
997 | |
998 | /* use gps position if present */ |
999 | context->appdata->map.pos = *refpos; |
1000 | context->appdata->map.zoom = GPS_DEFAULT_ZOOM; |
1001 | } else { |
1002 | printf("use zero pos\n"); |
1003 | |
1004 | /* use world map otherwise */ |
1005 | context->appdata->map.pos.lat = 0.0; |
1006 | context->appdata->map.pos.lon = 0.0; |
1007 | context->appdata->map.zoom = 1; |
1008 | } |
1009 | } |
1010 | |
1011 | osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget), |
1012 | context->appdata->map.pos.lat, |
1013 | context->appdata->map.pos.lon, |
1014 | context->appdata->map.zoom); |
1015 | |
1016 | #ifdef USE_MAEMO |
1017 | /* we don't use a stackable window here on fremantle, since */ |
1018 | /* this leaves the main window independent from the map and */ |
1019 | /* the user can e.g. still navigate the main menu */ |
1020 | context->window = hildon_window_new(); |
1021 | |
1022 | #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__) |
1023 | g_signal_connect(G_OBJECT(context->window), "realize", |
1024 | G_CALLBACK(on_window_realize), NULL); |
1025 | #endif // MAEMO_VERSION |
1026 | #else |
1027 | context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL); |
1028 | #endif |
1029 | |
1030 | #ifndef USE_MAEMO |
1031 | gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480); |
1032 | #endif |
1033 | |
1034 | g_signal_connect(G_OBJECT(context->widget), "focus-in-event", |
1035 | G_CALLBACK(on_focus_in), context); |
1036 | |
1037 | g_signal_connect(G_OBJECT(context->widget), "focus-out-event", |
1038 | G_CALLBACK(on_focus_out), context); |
1039 | |
1040 | g_signal_connect(G_OBJECT(context->widget), "button-press-event", |
1041 | G_CALLBACK(on_map_button_press_event), context); |
1042 | |
1043 | g_signal_connect(G_OBJECT(context->widget), "button-release-event", |
1044 | G_CALLBACK(on_map_button_release_event), context); |
1045 | |
1046 | /* install handler for timed updates of the gps button */ |
1047 | context->handler_id = gtk_timeout_add(1000, map_gps_update, context); |
1048 | context->cb_id = gps_register_callback(appdata, gps_callback, context); |
1049 | |
1050 | #if MAEMO_VERSION_MAJOR == 5 |
1051 | /* prevent some of the main screen things */ |
1052 | context->old_view = appdata->cur_view; |
1053 | appdata->cur_view = NULL; |
1054 | #endif |
1055 | |
1056 | g_signal_connect(G_OBJECT(context->window), "destroy", |
1057 | G_CALLBACK(on_window_destroy), context); |
1058 | |
1059 | gtk_container_add(GTK_CONTAINER(context->window), context->widget); |
1060 | gtk_widget_show_all(GTK_WIDGET(context->window)); |
1061 | |
1062 | /* setup cache state */ |
1063 | map_setup(context); |
1064 | } |