Parent Directory | Revision Log
osm-gps-map update from osm2go
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 | #include "gpxview.h" |
21 | #include "converter.h" |
22 | #include <math.h> // for isnan |
23 | |
24 | #ifdef ENABLE_OSM_GPS_MAP |
25 | #include "osm-gps-map.h" |
26 | #endif |
27 | |
28 | #define MAP_SOURCE OSM_GPS_MAP_SOURCE_OPENSTREETMAP |
29 | #define GPS_DEFAULT_ZOOM 13 |
30 | |
31 | #define PROXY_KEY "/system/http_proxy/" |
32 | |
33 | static const char *get_proxy_uri(appdata_t *appdata) { |
34 | static char proxy_buffer[64] = ""; |
35 | |
36 | /* use environment settings if preset */ |
37 | const char *proxy = g_getenv("http_proxy"); |
38 | if(proxy) { |
39 | printf("http_proxy: %s\n", proxy); |
40 | return proxy; |
41 | } |
42 | |
43 | /* ------------- get proxy settings -------------------- */ |
44 | if(gconf_client_get_bool(appdata->gconf_client, |
45 | PROXY_KEY "use_http_proxy", NULL)) { |
46 | |
47 | /* we can savely ignore things like "ignore_hosts" since we */ |
48 | /* are pretty sure not inside the net of one of our map renderers */ |
49 | /* (unless the user works at google :-) */ |
50 | |
51 | /* get basic settings */ |
52 | char *host = |
53 | gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL); |
54 | if(host) { |
55 | int port = |
56 | gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL); |
57 | |
58 | snprintf(proxy_buffer, sizeof(proxy_buffer), |
59 | "http://%s:%u", host, port); |
60 | |
61 | g_free(host); |
62 | } |
63 | return proxy_buffer; |
64 | } |
65 | |
66 | return NULL; |
67 | } |
68 | |
69 | static void |
70 | cb_map_gps(map_context_t *context) { |
71 | pos_t *refpos = get_pos(context->appdata); |
72 | if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) { |
73 | osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget), |
74 | refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM); |
75 | } else { |
76 | /* no coordinates given: display the entire world */ |
77 | osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget), |
78 | 0.0, 0.0, 1); |
79 | } |
80 | } |
81 | |
82 | static int dist2pixel(map_context_t *context, float km, float lat) { |
83 | return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget)); |
84 | } |
85 | |
86 | static gboolean map_gps_update(gpointer data) { |
87 | map_context_t *context = (map_context_t*)data; |
88 | |
89 | /* get reference position ... */ |
90 | pos_t *refpos = get_pos(context->appdata); |
91 | gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon); |
92 | |
93 | /* ... and enable "goto" button if it's valid */ |
94 | osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget), |
95 | OSM_GPS_MAP_OSD_GPS_CALLBACK(ok?cb_map_gps:NULL), context); |
96 | |
97 | if(ok) { |
98 | float heading = NAN; |
99 | int radius = 0; |
100 | |
101 | if(context->appdata->use_gps) { |
102 | heading = gps_get_heading(context->appdata); |
103 | |
104 | /* get error */ |
105 | float eph = gps_get_eph(context->appdata); |
106 | if(!isnan(eph)) |
107 | radius = dist2pixel(context, eph/1000, refpos->lat); |
108 | } |
109 | |
110 | g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL); |
111 | osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget), |
112 | refpos->lat, refpos->lon, heading); |
113 | } else |
114 | osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget)); |
115 | |
116 | return TRUE; |
117 | } |
118 | |
119 | static gboolean on_map_configure(GtkWidget *widget, |
120 | GdkEventConfigure *event, |
121 | map_context_t *context) { |
122 | |
123 | /* set default values if they are invalid */ |
124 | if(!context->appdata->map.zoom || |
125 | isnan(context->appdata->map.pos.lat) || |
126 | isnan(context->appdata->map.pos.lon)) { |
127 | printf("no valid map position found\n"); |
128 | |
129 | pos_t *refpos = get_pos(context->appdata); |
130 | if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) { |
131 | /* use gps position if present */ |
132 | context->appdata->map.pos = *refpos; |
133 | context->appdata->map.zoom = GPS_DEFAULT_ZOOM; |
134 | } else { |
135 | /* use world map otherwise */ |
136 | context->appdata->map.pos.lat = 0.0; |
137 | context->appdata->map.pos.lon = 0.0; |
138 | context->appdata->map.zoom = 1; |
139 | } |
140 | } |
141 | |
142 | /* jump to initial position */ |
143 | osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget), |
144 | context->appdata->map.pos.lat, |
145 | context->appdata->map.pos.lon, |
146 | context->appdata->map.zoom); |
147 | |
148 | return FALSE; |
149 | } |
150 | |
151 | static void map_draw_cachelist(GtkWidget *map, cache_t *cache) { |
152 | while(cache) { |
153 | GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type); |
154 | |
155 | osm_gps_map_add_image(OSM_GPS_MAP(map), |
156 | cache->pos.lat, cache->pos.lon, icon); |
157 | |
158 | cache = cache->next; |
159 | } |
160 | } |
161 | |
162 | static void |
163 | map_cachelist_nearest(cache_t *cache, pos_t *pos, |
164 | cache_t **result, float *distance) { |
165 | while(cache) { |
166 | float dist = |
167 | pow(cache->pos.lat - pos->lat, 2) + |
168 | pow(cache->pos.lon - pos->lon, 2); |
169 | |
170 | if(!(dist > *distance)) { |
171 | *result = cache; |
172 | *distance = dist; |
173 | } |
174 | |
175 | cache = cache->next; |
176 | } |
177 | } |
178 | |
179 | static cache_t *map_closest(map_context_t *context, pos_t *pos) { |
180 | cache_t *result = NULL; |
181 | float distance = NAN; |
182 | |
183 | #ifdef USE_MAEMO |
184 | if(!context->appdata->cur_gpx) { |
185 | #endif |
186 | /* search all geocaches */ |
187 | gpx_t *gpx = context->appdata->gpx; |
188 | while(gpx) { |
189 | map_cachelist_nearest(gpx->cache, pos, &result, &distance); |
190 | gpx = gpx->next; |
191 | } |
192 | #ifdef USE_MAEMO |
193 | } else { |
194 | map_cachelist_nearest(context->appdata->cur_gpx->cache, |
195 | pos, &result, &distance); |
196 | } |
197 | #endif |
198 | |
199 | return result; |
200 | } |
201 | |
202 | /* translate between osm-gps-map positions and gpxview ones */ |
203 | pos_t coord2pos(coord_t coo) { |
204 | pos_t pos; |
205 | pos.lat = rad2deg(coo.rlat); |
206 | pos.lon = rad2deg(coo.rlon); |
207 | return pos; |
208 | } |
209 | |
210 | #define CLICK_FUZZ (24) |
211 | |
212 | static gboolean |
213 | on_map_button_press_event(GtkWidget *widget, |
214 | GdkEventButton *event, map_context_t *context) { |
215 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); |
216 | |
217 | /* got a press event without release event? eat it! */ |
218 | if(context->press_on != NULL) { |
219 | printf("PRESS: already\n"); |
220 | return TRUE; |
221 | } |
222 | |
223 | pos_t pos = |
224 | coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y)); |
225 | |
226 | cache_t *nearest = map_closest(context, &pos); |
227 | if(nearest) { |
228 | float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE); |
229 | if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) |
230 | context->press_on = nearest; |
231 | } |
232 | |
233 | return FALSE; |
234 | } |
235 | |
236 | static void |
237 | cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) { |
238 | /* convert the pixbuf into something cairo can handle */ |
239 | |
240 | // Create a new ImageSurface |
241 | cairo_surface_t *image_surface = |
242 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
243 | gdk_pixbuf_get_width(buf), |
244 | gdk_pixbuf_get_height(buf)); |
245 | |
246 | // Create the new Context for the ImageSurface |
247 | cairo_t *context = cairo_create(image_surface); |
248 | |
249 | // Draw the image on the new Context |
250 | gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0); |
251 | cairo_paint(context); |
252 | |
253 | // now draw this onto the original context |
254 | cairo_set_source_surface(cr, image_surface, x, y); |
255 | |
256 | cairo_paint(cr); |
257 | } |
258 | |
259 | #ifndef BIG_BALLOONS |
260 | #define LINE_SKIP 7 |
261 | #else |
262 | #define LINE_SKIP 12 |
263 | #endif |
264 | |
265 | static void |
266 | balloon_draw_cb(cairo_t *cr, OsmGpsMapRect_t *rect, gpointer data) { |
267 | cache_t *cache = (cache_t*)data; |
268 | |
269 | // printf("draw cb for \"%s\"\n", cache->name); |
270 | |
271 | #if 0 |
272 | /* draw pink background to check clipping */ |
273 | cairo_rectangle (cr, rect->x-20, rect->y-20, rect->w+40, rect->h+40); |
274 | cairo_set_source_rgba (cr, 1, 0, 0, 0.3); |
275 | cairo_fill_preserve (cr); |
276 | cairo_set_line_width (cr, 0); |
277 | cairo_stroke (cr); |
278 | #endif |
279 | |
280 | /* leave a little border top and left */ |
281 | gint x = rect->x, y = rect->y; |
282 | |
283 | /* draw the cache type icon ... */ |
284 | GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type); |
285 | cairo_draw_pixbuf(cr, icon, x, y); |
286 | |
287 | /* ... and right of it the waypoint id */ |
288 | cairo_text_extents_t extents; |
289 | |
290 | if(cache->id) { |
291 | cairo_select_font_face (cr, "Sans", |
292 | CAIRO_FONT_SLANT_NORMAL, |
293 | CAIRO_FONT_WEIGHT_BOLD); |
294 | |
295 | #ifndef BIG_BALLOONS |
296 | cairo_set_font_size (cr, 20.0); |
297 | #else |
298 | cairo_set_font_size (cr, 36.0); |
299 | #endif |
300 | |
301 | cairo_text_extents (cr, cache->id, &extents); |
302 | |
303 | /* display id right of icon vertically centered */ |
304 | x += gdk_pixbuf_get_width(icon) + 5; |
305 | y += (gdk_pixbuf_get_height(icon) + extents.height)/2; |
306 | cairo_move_to (cr, x, y); |
307 | cairo_set_source_rgba (cr, 0, 0, 0, 1); |
308 | cairo_show_text (cr, cache->id); |
309 | cairo_stroke (cr); |
310 | |
311 | y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP; |
312 | } else |
313 | y += gdk_pixbuf_get_height(icon); |
314 | |
315 | /* return to the left border and below icon/text */ |
316 | x = rect->x; |
317 | |
318 | /* everything from here uses the same font */ |
319 | cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL, |
320 | CAIRO_FONT_WEIGHT_NORMAL); |
321 | #ifndef BIG_BALLOONS |
322 | cairo_set_font_size (cr, 14.0); |
323 | #else |
324 | cairo_set_font_size (cr, 22.0); |
325 | #endif |
326 | |
327 | if(cache->name) { |
328 | /* draw cache name */ |
329 | cairo_text_extents (cr, cache->name, &extents); |
330 | y += extents.height; |
331 | cairo_move_to (cr, x, y); |
332 | cairo_set_source_rgba (cr, 0, 0, 0, 1); |
333 | cairo_show_text (cr, cache->name); |
334 | cairo_stroke (cr); |
335 | |
336 | /* return to the left border and below text */ |
337 | y += LINE_SKIP; |
338 | x = rect->x; |
339 | } |
340 | |
341 | if(cache->terrain) { |
342 | /* draw cache rating */ |
343 | const char *terrain = "Terrain:"; |
344 | icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2)); |
345 | cairo_text_extents (cr, _(terrain), &extents); |
346 | y += (gdk_pixbuf_get_height(icon) + extents.height)/2; |
347 | |
348 | /* draw "Terrain:" string */ |
349 | cairo_move_to (cr, x, y); |
350 | cairo_set_source_rgba (cr, 0, 0, 0, 1); |
351 | cairo_show_text (cr, _(terrain)); |
352 | cairo_stroke (cr); |
353 | x += extents.width + 2; |
354 | |
355 | /* draw terrain stars */ |
356 | cairo_draw_pixbuf(cr, icon, x, y - |
357 | (gdk_pixbuf_get_height(icon) + extents.height)/2); |
358 | |
359 | x += gdk_pixbuf_get_width(icon) + LINE_SKIP; |
360 | y -= (gdk_pixbuf_get_height(icon) + extents.height)/2; |
361 | } |
362 | |
363 | if(cache->difficulty) { |
364 | const char *difficulty = "Difficulty:"; |
365 | cairo_text_extents (cr, _(difficulty), &extents); |
366 | y += (gdk_pixbuf_get_height(icon) + extents.height)/2; |
367 | |
368 | /* draw "Difficulty:" string */ |
369 | cairo_move_to (cr, x, y); |
370 | cairo_set_source_rgba (cr, 0, 0, 0, 1); |
371 | cairo_show_text (cr, _(difficulty)); |
372 | cairo_stroke (cr); |
373 | x += extents.width + 2; |
374 | |
375 | icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2)); |
376 | cairo_draw_pixbuf(cr, icon, x, y - |
377 | (gdk_pixbuf_get_height(icon) + extents.height)/2); |
378 | } |
379 | } |
380 | |
381 | static gboolean |
382 | on_map_button_release_event(GtkWidget *widget, |
383 | GdkEventButton *event, map_context_t *context) { |
384 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); |
385 | |
386 | if(context->press_on) { |
387 | coord_t coo; |
388 | coo = osm_gps_map_get_co_ordinates(map, event->x, event->y); |
389 | |
390 | pos_t pos = |
391 | coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y)); |
392 | |
393 | cache_t *nearest = map_closest(context, &pos); |
394 | if(nearest && nearest == context->press_on) { |
395 | float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE); |
396 | if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) { |
397 | |
398 | osm_gps_map_draw_balloon(map, nearest->pos.lat, nearest->pos.lon, |
399 | balloon_draw_cb, nearest); |
400 | } |
401 | } |
402 | context->press_on = NULL; |
403 | } else { |
404 | /* save new map position */ |
405 | gfloat lat, lon; |
406 | g_object_get(map, "latitude", &lat, "longitude", &lon, NULL); |
407 | context->appdata->map.pos.lat = lat; |
408 | context->appdata->map.pos.lon = lon; |
409 | } |
410 | |
411 | return FALSE; |
412 | } |
413 | |
414 | static void on_window_destroy(GtkWidget *widget, map_context_t *context) { |
415 | appdata_t *appdata = context->appdata; |
416 | |
417 | printf("destroy map window\n"); |
418 | |
419 | /* save map parameters */ |
420 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); |
421 | gint zoom; |
422 | g_object_get(map, "zoom", &zoom, NULL); |
423 | context->appdata->map.zoom = zoom; |
424 | |
425 | gfloat lat, lon; |
426 | g_object_get(map, "latitude", &lat, "longitude", &lon, NULL); |
427 | context->appdata->map.pos.lat = lat; |
428 | context->appdata->map.pos.lon = lon; |
429 | |
430 | #if MAEMO_VERSION_MAJOR == 5 |
431 | /* restore cur_view */ |
432 | context->appdata->cur_view = context->old_view; |
433 | #endif |
434 | |
435 | gtk_timeout_remove(context->handler_id); |
436 | |
437 | g_free(context); |
438 | appdata->map.context = NULL; |
439 | } |
440 | |
441 | void map(appdata_t *appdata) { |
442 | map_context_t *context = NULL; |
443 | |
444 | /* if the map window already exists, just raise it */ |
445 | if(appdata->map.context) { |
446 | gtk_window_present(GTK_WINDOW(appdata->map.context->window)); |
447 | return; |
448 | } |
449 | |
450 | context = appdata->map.context = g_new0(map_context_t, 1); |
451 | context->appdata = appdata; |
452 | |
453 | char *path = g_strdup_printf("%s/map/", appdata->image_path); |
454 | const char *proxy = get_proxy_uri(appdata); |
455 | |
456 | context->widget = g_object_new(OSM_TYPE_GPS_MAP, |
457 | "map-source", MAP_SOURCE, |
458 | "tile-cache", path, |
459 | "auto-center", FALSE, |
460 | "record-trip-history", FALSE, |
461 | "show-trip-history", FALSE, |
462 | proxy?"proxy-uri":NULL, proxy, |
463 | NULL); |
464 | |
465 | g_free(path); |
466 | |
467 | char *name = NULL; |
468 | #ifdef USE_MAEMO |
469 | if(!appdata->cur_gpx) { |
470 | #endif |
471 | /* draw all geocaches */ |
472 | gpx_t *gpx = appdata->gpx; |
473 | while(gpx) { |
474 | map_draw_cachelist(context->widget, gpx->cache); |
475 | gpx = gpx->next; |
476 | } |
477 | name = g_strdup(_("all geocaches")); |
478 | #ifdef USE_MAEMO |
479 | } else { |
480 | map_draw_cachelist(context->widget, appdata->cur_gpx->cache); |
481 | name = g_strdup(appdata->cur_gpx->name); |
482 | } |
483 | #endif |
484 | |
485 | char *title = g_strdup_printf(_("Map - %s"), name); |
486 | g_free(name); |
487 | |
488 | #ifdef USE_MAEMO |
489 | #ifdef USE_STACKABLE_WINDOW |
490 | context->window = hildon_stackable_window_new(); |
491 | #else |
492 | context->window = hildon_window_new(); |
493 | #endif |
494 | #else |
495 | context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL); |
496 | #endif |
497 | |
498 | gtk_window_set_title(GTK_WINDOW(context->window), title); |
499 | |
500 | #ifndef USE_MAEMO |
501 | gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480); |
502 | #endif |
503 | |
504 | g_free(title); |
505 | |
506 | g_signal_connect(G_OBJECT(context->widget), "configure-event", |
507 | G_CALLBACK(on_map_configure), context); |
508 | |
509 | g_signal_connect(G_OBJECT(context->widget), "button-press-event", |
510 | G_CALLBACK(on_map_button_press_event), context); |
511 | |
512 | g_signal_connect(G_OBJECT(context->widget), "button-release-event", |
513 | G_CALLBACK(on_map_button_release_event), context); |
514 | |
515 | /* install handler for timed updates of the gps button */ |
516 | context->handler_id = gtk_timeout_add(1000, map_gps_update, context); |
517 | |
518 | #if MAEMO_VERSION_MAJOR == 5 |
519 | /* prevent some of the main screen things */ |
520 | context->old_view = appdata->cur_view; |
521 | appdata->cur_view = NULL; |
522 | #endif |
523 | |
524 | g_signal_connect(G_OBJECT(context->window), "destroy", |
525 | G_CALLBACK(on_window_destroy), context); |
526 | |
527 | gtk_container_add(GTK_CONTAINER(context->window), context->widget); |
528 | gtk_widget_show_all(GTK_WIDGET(context->window)); |
529 | } |