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OSD seperated from osm-gps-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 | #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 | #include "osm-gps-map-osd-classic.h" |
27 | #endif |
28 | |
29 | #define MAP_SOURCE OSM_GPS_MAP_SOURCE_OPENSTREETMAP |
30 | #define GPS_DEFAULT_ZOOM 13 |
31 | |
32 | #define PROXY_KEY "/system/http_proxy/" |
33 | |
34 | static const char *get_proxy_uri(appdata_t *appdata) { |
35 | static char proxy_buffer[64] = ""; |
36 | |
37 | /* use environment settings if preset */ |
38 | const char *proxy = g_getenv("http_proxy"); |
39 | if(proxy) { |
40 | printf("http_proxy: %s\n", proxy); |
41 | return proxy; |
42 | } |
43 | |
44 | /* ------------- get proxy settings -------------------- */ |
45 | if(gconf_client_get_bool(appdata->gconf_client, |
46 | PROXY_KEY "use_http_proxy", NULL)) { |
47 | |
48 | /* we can savely ignore things like "ignore_hosts" since we */ |
49 | /* are pretty sure not inside the net of one of our map renderers */ |
50 | /* (unless the user works at google :-) */ |
51 | |
52 | /* get basic settings */ |
53 | char *host = |
54 | gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL); |
55 | if(host) { |
56 | int port = |
57 | gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL); |
58 | |
59 | snprintf(proxy_buffer, sizeof(proxy_buffer), |
60 | "http://%s:%u", host, port); |
61 | |
62 | g_free(host); |
63 | } |
64 | return proxy_buffer; |
65 | } |
66 | |
67 | return NULL; |
68 | } |
69 | |
70 | static void |
71 | cb_map_gps(osd_button_t but, map_context_t *context) { |
72 | if(but == OSD_GPS) { |
73 | pos_t *refpos = get_pos(context->appdata); |
74 | if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) { |
75 | osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget), |
76 | refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM); |
77 | } else { |
78 | /* no coordinates given: display the entire world */ |
79 | osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget), |
80 | 0.0, 0.0, 1); |
81 | } |
82 | } |
83 | } |
84 | |
85 | static int dist2pixel(map_context_t *context, float km, float lat) { |
86 | return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget)); |
87 | } |
88 | |
89 | static gboolean map_gps_update(gpointer data) { |
90 | map_context_t *context = (map_context_t*)data; |
91 | |
92 | /* get reference position ... */ |
93 | pos_t *refpos = get_pos(context->appdata); |
94 | gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon); |
95 | |
96 | /* ... and enable "goto" button if it's valid */ |
97 | osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget), |
98 | OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context); |
99 | |
100 | if(ok) { |
101 | float heading = NAN; |
102 | int radius = 0; |
103 | |
104 | if(context->appdata->use_gps) { |
105 | heading = gps_get_heading(context->appdata); |
106 | |
107 | /* get error */ |
108 | float eph = gps_get_eph(context->appdata); |
109 | if(!isnan(eph)) |
110 | radius = dist2pixel(context, eph/1000, refpos->lat); |
111 | } |
112 | |
113 | g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL); |
114 | osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget), |
115 | refpos->lat, refpos->lon, heading); |
116 | } else |
117 | osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget)); |
118 | |
119 | return TRUE; |
120 | } |
121 | |
122 | static gboolean on_map_configure(GtkWidget *widget, |
123 | GdkEventConfigure *event, |
124 | map_context_t *context) { |
125 | |
126 | /* set default values if they are invalid */ |
127 | if(!context->appdata->map.zoom || |
128 | isnan(context->appdata->map.pos.lat) || |
129 | isnan(context->appdata->map.pos.lon)) { |
130 | printf("no valid map position found\n"); |
131 | |
132 | pos_t *refpos = get_pos(context->appdata); |
133 | if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) { |
134 | /* use gps position if present */ |
135 | context->appdata->map.pos = *refpos; |
136 | context->appdata->map.zoom = GPS_DEFAULT_ZOOM; |
137 | } else { |
138 | /* use world map otherwise */ |
139 | context->appdata->map.pos.lat = 0.0; |
140 | context->appdata->map.pos.lon = 0.0; |
141 | context->appdata->map.zoom = 1; |
142 | } |
143 | } |
144 | |
145 | /* jump to initial position */ |
146 | osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget), |
147 | context->appdata->map.pos.lat, |
148 | context->appdata->map.pos.lon, |
149 | context->appdata->map.zoom); |
150 | |
151 | return FALSE; |
152 | } |
153 | |
154 | static void map_draw_cachelist(GtkWidget *map, cache_t *cache) { |
155 | while(cache) { |
156 | GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type); |
157 | |
158 | osm_gps_map_add_image(OSM_GPS_MAP(map), |
159 | cache->pos.lat, cache->pos.lon, icon); |
160 | |
161 | cache = cache->next; |
162 | } |
163 | } |
164 | |
165 | static void |
166 | map_cachelist_nearest(cache_t *cache, pos_t *pos, |
167 | cache_t **result, float *distance) { |
168 | while(cache) { |
169 | float dist = |
170 | pow(cache->pos.lat - pos->lat, 2) + |
171 | pow(cache->pos.lon - pos->lon, 2); |
172 | |
173 | if(!(dist > *distance)) { |
174 | *result = cache; |
175 | *distance = dist; |
176 | } |
177 | |
178 | cache = cache->next; |
179 | } |
180 | } |
181 | |
182 | static cache_t *map_closest(map_context_t *context, pos_t *pos) { |
183 | cache_t *result = NULL; |
184 | float distance = NAN; |
185 | |
186 | #ifdef USE_MAEMO |
187 | if(!context->appdata->cur_gpx) { |
188 | #endif |
189 | /* search all geocaches */ |
190 | gpx_t *gpx = context->appdata->gpx; |
191 | while(gpx) { |
192 | map_cachelist_nearest(gpx->cache, pos, &result, &distance); |
193 | gpx = gpx->next; |
194 | } |
195 | #ifdef USE_MAEMO |
196 | } else { |
197 | map_cachelist_nearest(context->appdata->cur_gpx->cache, |
198 | pos, &result, &distance); |
199 | } |
200 | #endif |
201 | |
202 | return result; |
203 | } |
204 | |
205 | /* translate between osm-gps-map positions and gpxview ones */ |
206 | pos_t coord2pos(coord_t coo) { |
207 | pos_t pos; |
208 | pos.lat = rad2deg(coo.rlat); |
209 | pos.lon = rad2deg(coo.rlon); |
210 | return pos; |
211 | } |
212 | |
213 | #define CLICK_FUZZ (24) |
214 | |
215 | static gboolean |
216 | on_map_button_press_event(GtkWidget *widget, |
217 | GdkEventButton *event, map_context_t *context) { |
218 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); |
219 | |
220 | /* got a press event without release event? eat it! */ |
221 | if(context->press_on != NULL) { |
222 | printf("PRESS: already\n"); |
223 | return TRUE; |
224 | } |
225 | |
226 | pos_t pos = |
227 | coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y)); |
228 | |
229 | cache_t *nearest = map_closest(context, &pos); |
230 | if(nearest) { |
231 | float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE); |
232 | if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) |
233 | context->press_on = nearest; |
234 | } |
235 | |
236 | return FALSE; |
237 | } |
238 | |
239 | static void |
240 | cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) { |
241 | /* convert the pixbuf into something cairo can handle */ |
242 | |
243 | // Create a new ImageSurface |
244 | cairo_surface_t *image_surface = |
245 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
246 | gdk_pixbuf_get_width(buf), |
247 | gdk_pixbuf_get_height(buf)); |
248 | |
249 | // Create the new Context for the ImageSurface |
250 | cairo_t *context = cairo_create(image_surface); |
251 | |
252 | // Draw the image on the new Context |
253 | gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0); |
254 | cairo_paint(context); |
255 | |
256 | // now draw this onto the original context |
257 | cairo_set_source_surface(cr, image_surface, x, y); |
258 | |
259 | cairo_paint(cr); |
260 | } |
261 | |
262 | #ifndef BIG_BALLOONS |
263 | #define LINE_SKIP 7 |
264 | #else |
265 | #define LINE_SKIP 12 |
266 | #endif |
267 | |
268 | static void |
269 | balloon_draw_cb(cairo_t *cr, OsmGpsMapRect_t *rect, gpointer data) { |
270 | cache_t *cache = (cache_t*)data; |
271 | |
272 | // printf("draw cb for \"%s\"\n", cache->name); |
273 | |
274 | #if 0 |
275 | /* draw pink background to check clipping */ |
276 | cairo_rectangle (cr, rect->x-20, rect->y-20, rect->w+40, rect->h+40); |
277 | cairo_set_source_rgba (cr, 1, 0, 0, 0.3); |
278 | cairo_fill_preserve (cr); |
279 | cairo_set_line_width (cr, 0); |
280 | cairo_stroke (cr); |
281 | #endif |
282 | |
283 | /* leave a little border top and left */ |
284 | gint x = rect->x, y = rect->y; |
285 | |
286 | /* draw the cache type icon ... */ |
287 | GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type); |
288 | cairo_draw_pixbuf(cr, icon, x, y); |
289 | |
290 | /* ... and right of it the waypoint id */ |
291 | cairo_text_extents_t extents; |
292 | |
293 | if(cache->id) { |
294 | cairo_select_font_face (cr, "Sans", |
295 | CAIRO_FONT_SLANT_NORMAL, |
296 | CAIRO_FONT_WEIGHT_BOLD); |
297 | |
298 | #ifndef BIG_BALLOONS |
299 | cairo_set_font_size (cr, 20.0); |
300 | #else |
301 | cairo_set_font_size (cr, 36.0); |
302 | #endif |
303 | |
304 | cairo_text_extents (cr, cache->id, &extents); |
305 | |
306 | /* display id right of icon vertically centered */ |
307 | x += gdk_pixbuf_get_width(icon) + 5; |
308 | y += (gdk_pixbuf_get_height(icon) + extents.height)/2; |
309 | cairo_move_to (cr, x, y); |
310 | cairo_set_source_rgba (cr, 0, 0, 0, 1); |
311 | cairo_show_text (cr, cache->id); |
312 | cairo_stroke (cr); |
313 | |
314 | y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP; |
315 | } else |
316 | y += gdk_pixbuf_get_height(icon); |
317 | |
318 | /* return to the left border and below icon/text */ |
319 | x = rect->x; |
320 | |
321 | /* everything from here uses the same font */ |
322 | cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL, |
323 | CAIRO_FONT_WEIGHT_NORMAL); |
324 | #ifndef BIG_BALLOONS |
325 | cairo_set_font_size (cr, 14.0); |
326 | #else |
327 | cairo_set_font_size (cr, 22.0); |
328 | #endif |
329 | |
330 | if(cache->name) { |
331 | /* draw cache name */ |
332 | cairo_text_extents (cr, cache->name, &extents); |
333 | y += extents.height; |
334 | cairo_move_to (cr, x, y); |
335 | cairo_set_source_rgba (cr, 0, 0, 0, 1); |
336 | cairo_show_text (cr, cache->name); |
337 | cairo_stroke (cr); |
338 | |
339 | /* return to the left border and below text */ |
340 | y += LINE_SKIP; |
341 | x = rect->x; |
342 | } |
343 | |
344 | if(cache->terrain) { |
345 | /* draw cache rating */ |
346 | const char *terrain = "Terrain:"; |
347 | icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2)); |
348 | cairo_text_extents (cr, _(terrain), &extents); |
349 | y += (gdk_pixbuf_get_height(icon) + extents.height)/2; |
350 | |
351 | /* draw "Terrain:" string */ |
352 | cairo_move_to (cr, x, y); |
353 | cairo_set_source_rgba (cr, 0, 0, 0, 1); |
354 | cairo_show_text (cr, _(terrain)); |
355 | cairo_stroke (cr); |
356 | x += extents.width + 2; |
357 | |
358 | /* draw terrain stars */ |
359 | cairo_draw_pixbuf(cr, icon, x, y - |
360 | (gdk_pixbuf_get_height(icon) + extents.height)/2); |
361 | |
362 | x += gdk_pixbuf_get_width(icon) + LINE_SKIP; |
363 | y -= (gdk_pixbuf_get_height(icon) + extents.height)/2; |
364 | } |
365 | |
366 | if(cache->difficulty) { |
367 | const char *difficulty = "Difficulty:"; |
368 | cairo_text_extents (cr, _(difficulty), &extents); |
369 | y += (gdk_pixbuf_get_height(icon) + extents.height)/2; |
370 | |
371 | /* draw "Difficulty:" string */ |
372 | cairo_move_to (cr, x, y); |
373 | cairo_set_source_rgba (cr, 0, 0, 0, 1); |
374 | cairo_show_text (cr, _(difficulty)); |
375 | cairo_stroke (cr); |
376 | x += extents.width + 2; |
377 | |
378 | icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2)); |
379 | cairo_draw_pixbuf(cr, icon, x, y - |
380 | (gdk_pixbuf_get_height(icon) + extents.height)/2); |
381 | } |
382 | } |
383 | |
384 | static gboolean |
385 | on_map_button_release_event(GtkWidget *widget, |
386 | GdkEventButton *event, map_context_t *context) { |
387 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); |
388 | |
389 | if(context->press_on) { |
390 | coord_t coo; |
391 | coo = osm_gps_map_get_co_ordinates(map, event->x, event->y); |
392 | |
393 | pos_t pos = |
394 | coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y)); |
395 | |
396 | cache_t *nearest = map_closest(context, &pos); |
397 | if(nearest && nearest == context->press_on) { |
398 | float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE); |
399 | if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) { |
400 | |
401 | osm_gps_map_draw_balloon(map, nearest->pos.lat, nearest->pos.lon, |
402 | balloon_draw_cb, nearest); |
403 | } |
404 | } |
405 | context->press_on = NULL; |
406 | } else { |
407 | /* save new map position */ |
408 | gfloat lat, lon; |
409 | g_object_get(map, "latitude", &lat, "longitude", &lon, NULL); |
410 | context->appdata->map.pos.lat = lat; |
411 | context->appdata->map.pos.lon = lon; |
412 | } |
413 | |
414 | return FALSE; |
415 | } |
416 | |
417 | static void on_window_destroy(GtkWidget *widget, map_context_t *context) { |
418 | appdata_t *appdata = context->appdata; |
419 | |
420 | printf("destroy map window\n"); |
421 | |
422 | /* save map parameters */ |
423 | OsmGpsMap *map = OSM_GPS_MAP(context->widget); |
424 | gint zoom; |
425 | g_object_get(map, "zoom", &zoom, NULL); |
426 | context->appdata->map.zoom = zoom; |
427 | |
428 | gfloat lat, lon; |
429 | g_object_get(map, "latitude", &lat, "longitude", &lon, NULL); |
430 | context->appdata->map.pos.lat = lat; |
431 | context->appdata->map.pos.lon = lon; |
432 | |
433 | #if MAEMO_VERSION_MAJOR == 5 |
434 | /* restore cur_view */ |
435 | context->appdata->cur_view = context->old_view; |
436 | #endif |
437 | |
438 | gtk_timeout_remove(context->handler_id); |
439 | |
440 | g_free(context); |
441 | appdata->map.context = NULL; |
442 | } |
443 | |
444 | void map(appdata_t *appdata) { |
445 | map_context_t *context = NULL; |
446 | |
447 | /* if the map window already exists, just raise it */ |
448 | if(appdata->map.context) { |
449 | gtk_window_present(GTK_WINDOW(appdata->map.context->window)); |
450 | return; |
451 | } |
452 | |
453 | context = appdata->map.context = g_new0(map_context_t, 1); |
454 | context->appdata = appdata; |
455 | |
456 | char *path = g_strdup_printf("%s/map/", appdata->image_path); |
457 | const char *proxy = get_proxy_uri(appdata); |
458 | |
459 | context->widget = g_object_new(OSM_TYPE_GPS_MAP, |
460 | "map-source", MAP_SOURCE, |
461 | "tile-cache", path, |
462 | "auto-center", FALSE, |
463 | "record-trip-history", FALSE, |
464 | "show-trip-history", FALSE, |
465 | proxy?"proxy-uri":NULL, proxy, |
466 | NULL); |
467 | |
468 | g_free(path); |
469 | |
470 | osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget)); |
471 | |
472 | char *name = NULL; |
473 | #ifdef USE_MAEMO |
474 | if(!appdata->cur_gpx) { |
475 | #endif |
476 | /* draw all geocaches */ |
477 | gpx_t *gpx = appdata->gpx; |
478 | while(gpx) { |
479 | map_draw_cachelist(context->widget, gpx->cache); |
480 | gpx = gpx->next; |
481 | } |
482 | name = g_strdup(_("all geocaches")); |
483 | #ifdef USE_MAEMO |
484 | } else { |
485 | map_draw_cachelist(context->widget, appdata->cur_gpx->cache); |
486 | name = g_strdup(appdata->cur_gpx->name); |
487 | } |
488 | #endif |
489 | |
490 | char *title = g_strdup_printf(_("Map - %s"), name); |
491 | g_free(name); |
492 | |
493 | #ifdef USE_MAEMO |
494 | #ifdef USE_STACKABLE_WINDOW |
495 | context->window = hildon_stackable_window_new(); |
496 | #else |
497 | context->window = hildon_window_new(); |
498 | #endif |
499 | #else |
500 | context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL); |
501 | #endif |
502 | |
503 | gtk_window_set_title(GTK_WINDOW(context->window), title); |
504 | |
505 | #ifndef USE_MAEMO |
506 | gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480); |
507 | #endif |
508 | |
509 | g_free(title); |
510 | |
511 | g_signal_connect(G_OBJECT(context->widget), "configure-event", |
512 | G_CALLBACK(on_map_configure), context); |
513 | |
514 | g_signal_connect(G_OBJECT(context->widget), "button-press-event", |
515 | G_CALLBACK(on_map_button_press_event), context); |
516 | |
517 | g_signal_connect(G_OBJECT(context->widget), "button-release-event", |
518 | G_CALLBACK(on_map_button_release_event), context); |
519 | |
520 | /* install handler for timed updates of the gps button */ |
521 | context->handler_id = gtk_timeout_add(1000, map_gps_update, context); |
522 | |
523 | #if MAEMO_VERSION_MAJOR == 5 |
524 | /* prevent some of the main screen things */ |
525 | context->old_view = appdata->cur_view; |
526 | appdata->cur_view = NULL; |
527 | #endif |
528 | |
529 | g_signal_connect(G_OBJECT(context->window), "destroy", |
530 | G_CALLBACK(on_window_destroy), context); |
531 | |
532 | gtk_container_add(GTK_CONTAINER(context->window), context->widget); |
533 | gtk_widget_show_all(GTK_WIDGET(context->window)); |
534 | } |