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