Contents of /trunk/src/map-tool.c

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Revision 280 - (show annotations)
Fri May 21 19:28:16 2010 UTC (13 years, 11 months ago) by harbaum
File MIME type: text/plain
File size: 32173 byte(s) 
Map widget update
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 puts("press event");
517
518 /* check if we actually clicked parts of the OSD */
519 if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
520 return FALSE;
521
522 /* got a press event without release event? eat it! */
523 if(context->press_on != NULL) {
524 printf("PRESS: already\n");
525 return FALSE;
526 }
527
528 pos_t pos =
529 coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
530
531 cache_t *nearest = map_closest(context, &pos);
532 if(nearest) {
533 pos_t cpos = gpx_cache_pos(nearest);
534
535 float dist = gpx_pos_get_distance(pos, cpos, FALSE);
536 if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
537 context->press_on = nearest;
538 }
539
540 return FALSE;
541 }
542
543 static void
544 cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
545 /* convert the pixbuf into something cairo can handle */
546
547 // Create a new ImageSurface
548 cairo_surface_t *image_surface =
549 cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
550 gdk_pixbuf_get_width(buf),
551 gdk_pixbuf_get_height(buf));
552
553 // Create the new Context for the ImageSurface
554 g_assert(image_surface);
555 cairo_t *context = cairo_create(image_surface);
556
557 // Draw the image on the new Context
558 gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
559 cairo_paint(context);
560
561 // now draw this onto the original context
562 cairo_set_source_surface(cr, image_surface, x, y);
563
564 cairo_paint(cr);
565 }
566
567 #ifndef BIG_BALLOONS
568 #define ICON_SIZE ICON_CACHE_TYPE
569 #else
570 #define ICON_SIZE ICON_CACHE_TYPE_1_5X
571 #endif
572
573 #ifndef BIG_BALLOONS
574 #define FONT_SIZE 14.0
575 #else
576 #define FONT_SIZE 22.0
577 #endif
578 #define LINE_SKIP (FONT_SIZE/4)
579
580
581 static void
582 balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
583 printf("balloon event: ");
584
585 map_context_t *context = (map_context_t*)data;
586 cache_t *cache = context->balloon;
587
588 if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
589 printf("draw\n");
590
591 #if 0
592 /* draw pink background to check clipping */
593 cairo_rectangle (event->data.draw.cr,
594 event->data.draw.rect->x-20, event->data.draw.rect->y-20,
595 event->data.draw.rect->w+40, event->data.draw.rect->h+40);
596 cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
597 cairo_fill_preserve (event->data.draw.cr);
598 cairo_set_line_width (event->data.draw.cr, 0);
599 cairo_stroke (event->data.draw.cr);
600 #endif
601
602 /* leave a little border top and left */
603 gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
604
605 /* draw the cache type icon ... */
606 GdkPixbuf *icon = icon_get(ICON_SIZE, cache->type);
607 cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
608
609 if(cache->notes && cache->notes->override) {
610 GdkPixbuf *over = icon_get(ICON_SIZE, 11);
611 cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
612 }
613
614 /* ... and right of it the waypoint id */
615 cairo_text_extents_t extents;
616
617 if(cache->id) {
618 cairo_select_font_face (event->data.draw.cr, "Sans",
619 CAIRO_FONT_SLANT_NORMAL,
620 CAIRO_FONT_WEIGHT_BOLD);
621
622 #ifndef BIG_BALLOONS
623 cairo_set_font_size (event->data.draw.cr, 20.0);
624 #else
625 cairo_set_font_size (event->data.draw.cr, 36.0);
626 #endif
627
628 cairo_text_extents (event->data.draw.cr, cache->id, &extents);
629
630 /* display id right of icon vertically centered */
631 x += gdk_pixbuf_get_width(icon) + 5;
632 y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
633 cairo_move_to (event->data.draw.cr, x, y);
634 cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
635 cairo_show_text (event->data.draw.cr, cache->id);
636 cairo_stroke (event->data.draw.cr);
637
638 y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
639 } else
640 y += gdk_pixbuf_get_height(icon);
641
642 /* return to the left border and below icon/text */
643 x = event->data.draw.rect->x;
644
645 /* everything from here uses the same font */
646 cairo_select_font_face (event->data.draw.cr, "Sans",
647 CAIRO_FONT_SLANT_NORMAL,
648 CAIRO_FONT_WEIGHT_NORMAL);
649
650 cairo_set_font_size (event->data.draw.cr, FONT_SIZE);
651
652 if(cache->name) {
653 /* draw cache name */
654 cairo_text_extents (event->data.draw.cr, cache->name, &extents);
655 cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing);
656 cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
657 cairo_show_text (event->data.draw.cr, cache->name);
658 cairo_stroke (event->data.draw.cr);
659
660 /* return to the left border and below text */
661 y += LINE_SKIP + FONT_SIZE;
662 x = event->data.draw.rect->x;
663 }
664
665 if(cache->terrain) {
666 int text_y = 0, icon_y = 0;
667
668 /* draw cache rating */
669 const char *terrain = "Terrain:";
670 icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
671 cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
672
673 if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
674 text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
675 else
676 icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
677
678 /* draw "Terrain:" string */
679 cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
680 cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
681 cairo_show_text (event->data.draw.cr, _(terrain));
682 cairo_stroke (event->data.draw.cr);
683 x += extents.width + 2;
684
685 /* draw terrain stars */
686 cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
687
688 x += gdk_pixbuf_get_width(icon) + FONT_SIZE/2;
689 }
690
691 if(cache->difficulty) {
692 int text_y = 0, icon_y = 0;
693
694 const char *difficulty = "Difficulty:";
695 icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
696 cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
697
698 if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
699 text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
700 else
701 icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
702
703 /* draw "Difficulty:" string */
704 cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
705 cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
706 cairo_show_text (event->data.draw.cr, _(difficulty));
707 cairo_stroke (event->data.draw.cr);
708 x += extents.width + 2;
709
710 cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
711 }
712
713 /* draw container info */
714 /* TODO ... */
715
716
717 } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
718 printf("click %s event at %d %d\n",
719 event->data.click.down?"down":"up",
720 event->data.click.x, event->data.click.y);
721
722 /* make the main screen jump to that cache */
723 if(!event->data.click.down) {
724 if(context->appdata->cur_cache) {
725 printf("ERROR: no current cache should be visible!\n");
726 } else {
727 gpx_t *is_in = NULL;
728
729 if(context->appdata->search_results) {
730 printf("click while in \"search results\" view\n");
731
732 is_in = context->appdata->search_results;
733 } else if(!context->appdata->cur_gpx) {
734 printf("click while in \"all\" view\n");
735
736 /* we first need to figure out which gpx file this cache */
737 /* is in so we can open it first */
738 gpx_t *gpx = context->appdata->gpx;
739 while(gpx && !is_in) {
740 cache_t *cur = gpx->cache;
741 while(cur && !is_in) {
742 if(cur == cache)
743 is_in = gpx;
744 cur = cur->next;
745 }
746 gpx = gpx->next;
747 }
748
749 if(is_in)
750 gpxlist_goto_cachelist(context->appdata, is_in);
751
752 } else {
753 printf("click while in \"cachelist\" view\n");
754
755 /* the simple case: there already is an open gpx file and */
756 /* we just jump into the "cache" view */
757 is_in = context->appdata->cur_gpx;
758 }
759
760 if(is_in) {
761 printf("selecting %s in %s\n",
762 cache->id,
763 context->appdata->search_results?
764 context->appdata->search_results->name:
765 context->appdata->cur_gpx->name);
766
767 cachelist_goto_cache(context->appdata, cache);
768
769 /* give focus to main screen (important for maemo) */
770 printf("raising main window\n");
771 gtk_window_present(GTK_WINDOW(context->appdata->window));
772 }
773 }
774 }
775 } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
776 printf("removed\n");
777 context->balloon = NULL;
778 }
779 }
780
781 static gboolean
782 on_map_button_release_event(GtkWidget *widget,
783 GdkEventButton *event, map_context_t *context) {
784 OsmGpsMap *map = OSM_GPS_MAP(context->widget);
785
786 puts("release event");
787
788 /* in "MAP_CACHE" state only one cache is visible */
789 /* and the map is in navigation mode. the balloon is */
790 /* pretty useless there */
791 if(context->press_on) {
792
793 coord_t coo;
794 coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
795
796 pos_t pos =
797 coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
798
799 cache_t *nearest = map_closest(context, &pos);
800 if(nearest && nearest == context->press_on) {
801 pos_t cpos = gpx_cache_pos(nearest);
802
803 float dist = gpx_pos_get_distance(pos, cpos, FALSE);
804 if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
805
806 context->balloon = nearest;
807 osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
808 balloon_cb, context);
809 }
810 }
811 context->press_on = NULL;
812 } else {
813 /* save new map position */
814 gfloat lat, lon;
815 g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
816 context->appdata->map.pos.lat = lat;
817 context->appdata->map.pos.lon = lon;
818 }
819
820 return FALSE;
821 }
822
823 static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
824 appdata_t *appdata = context->appdata;
825
826 /* save map parameters */
827 OsmGpsMap *map = OSM_GPS_MAP(context->widget);
828 gint zoom;
829 g_object_get(map, "zoom", &zoom, NULL);
830 context->appdata->map.zoom = zoom;
831
832 gboolean dpix;
833 g_object_get(map, "double-pixel", &dpix, NULL);
834 context->appdata->map.dpix = dpix;
835
836 gfloat lat, lon;
837 g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
838 context->appdata->map.pos.lat = lat;
839 context->appdata->map.pos.lon = lon;
840
841 gint source;
842 g_object_get(map, "map-source", &source, NULL);
843 context->appdata->map.source = source;
844
845 #if MAEMO_VERSION_MAJOR == 5
846 /* restore cur_view */
847 context->appdata->cur_view = context->old_view;
848 #endif
849
850 gtk_timeout_remove(context->handler_id);
851 gps_unregister_callback(appdata, context->cb_id);
852
853 if(context->caches_displayed) {
854 g_free(context->caches_displayed);
855 context->caches_displayed = NULL;
856 }
857
858 printf("destroy map context\n");
859 g_free(context);
860 appdata->map.context = NULL;
861 }
862
863 #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
864 /* get access to zoom buttons */
865 static void
866 on_window_realize(GtkWidget *widget, gpointer data) {
867 if (widget->window) {
868 unsigned char value = 1;
869 Atom hildon_zoom_key_atom =
870 gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
871 integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
872 Display *dpy =
873 GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
874 Window w = GDK_WINDOW_XID(widget->window);
875
876 XChangeProperty(dpy, w, hildon_zoom_key_atom,
877 integer_atom, 8, PropModeReplace, &value, 1);
878 }
879 }
880 #endif
881
882 /* on maemo a window is either on top or completely invisible. this */
883 /* means that we only need to update the map window if its raised. */
884 /* on ordinary desktops this is different and we always update */
885
886 static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
887 gpointer data) {
888 map_context_t *context = (map_context_t*)data;
889
890 printf("map got focus\n");
891
892 #ifdef USE_MAEMO
893 /* re-enable refresh of map */
894 if(!context->handler_id)
895 context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
896 #endif
897
898 map_setup(context);
899 return FALSE;
900 }
901
902 static gboolean on_focus_out(GtkWidget *widget, GdkEventFocus *event,
903 gpointer data) {
904 map_context_t *context = (map_context_t*)data;
905
906 printf("map lost focus\n");
907
908 /* save new map position */
909 gfloat lat, lon;
910 g_object_get(widget, "latitude", &lat, "longitude", &lon, NULL);
911
912 context->appdata->map.pos.lat = lat;
913 context->appdata->map.pos.lon = lon;
914
915 #ifdef USE_MAEMO
916 gtk_timeout_remove(context->handler_id);
917 context->handler_id = 0;
918 #endif
919
920 return FALSE;
921 }
922
923 void map_update(appdata_t *appdata) {
924 printf("map_update\n");
925 #ifndef USE_MAEMO
926 if(appdata->map.context)
927 map_setup(appdata->map.context);
928 #endif
929 }
930
931 /* callback called by the gps layer whenever gps state changes */
932 static void
933 gps_callback(struct gps_state *state, gpointer data) {
934 printf("map: gps callback\n");
935 }
936
937 void map(appdata_t *appdata) {
938 map_context_t *context = NULL;
939
940 /* if the map window already exists, just raise it */
941 if(appdata->map.context) {
942 printf("using existing map!\n");
943 gtk_window_present(GTK_WINDOW(appdata->map.context->window));
944 map_setup(appdata->map.context);
945 return;
946 }
947
948 context = appdata->map.context = g_new0(map_context_t, 1);
949 printf("allocated new context at %p\n", context);
950
951 context->appdata = appdata;
952 context->state = MAP_NONE;
953
954 /* cleanup old (pre 0.8.7) path if it exists */
955 char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
956 if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
957 printf("old file path %s exists\n", old_path);
958 rmdir_recursive(old_path);
959 }
960
961 /* It is recommanded that all applications share these same */
962 /* map path, so data is only cached once. The path should be: */
963 /* ~/.osm-gps-map on standard PC (users home) */
964 /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
965 /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
966 #if !defined(USE_MAEMO)
967 char *p = getenv("HOME");
968 if(!p) p = "/tmp";
969 char *path = g_strdup_printf("%s/.osm-gps-map", p);
970 #else
971 #if MAEMO_VERSION_MAJOR == 5
972 char *path = g_strdup("/home/user/.osm-gps-map");
973 #else
974 char *path = g_strdup("/media/mmc2/osm-gps-map");
975 #endif
976 #endif
977
978 const char *proxy = get_proxy_uri(appdata);
979
980 gint source = context->appdata->map.source;
981 if(!source) source = MAP_SOURCE;
982
983 context->widget = g_object_new(OSM_TYPE_GPS_MAP,
984 "map-source", source,
985 "tile-cache", path,
986 "auto-center", FALSE,
987 "record-trip-history", FALSE,
988 "show-trip-history", FALSE,
989 "double-pixel", context->appdata->map.dpix,
990 proxy?"proxy-uri":NULL, proxy,
991 NULL);
992
993 g_free(path);
994
995 osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
996
997 /* set default values if they are invalid */
998 if(!context->appdata->map.zoom ||
999 isnan(context->appdata->map.pos.lat) ||
1000 isnan(context->appdata->map.pos.lon)) {
1001 printf("no valid map position found\n");
1002
1003 pos_t *refpos = get_pos(context->appdata);
1004 if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
1005 printf("use refpos\n");
1006
1007 /* use gps position if present */
1008 context->appdata->map.pos = *refpos;
1009 context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
1010 } else {
1011 printf("use zero pos\n");
1012
1013 /* use world map otherwise */
1014 context->appdata->map.pos.lat = 0.0;
1015 context->appdata->map.pos.lon = 0.0;
1016 context->appdata->map.zoom = 1;
1017 }
1018 }
1019
1020 osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
1021 context->appdata->map.pos.lat,
1022 context->appdata->map.pos.lon,
1023 context->appdata->map.zoom);
1024
1025 #ifdef USE_MAEMO
1026 /* we don't use a stackable window here on fremantle, since */
1027 /* this leaves the main window independent from the map and */
1028 /* the user can e.g. still navigate the main menu */
1029 context->window = hildon_window_new();
1030
1031 #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
1032 g_signal_connect(G_OBJECT(context->window), "realize",
1033 G_CALLBACK(on_window_realize), NULL);
1034 #endif // MAEMO_VERSION
1035 #else
1036 context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1037 #endif
1038
1039 #ifndef USE_MAEMO
1040 gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
1041 #endif
1042
1043 g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
1044 G_CALLBACK(on_focus_in), context);
1045
1046 g_signal_connect(G_OBJECT(context->widget), "focus-out-event",
1047 G_CALLBACK(on_focus_out), context);
1048
1049 g_signal_connect(G_OBJECT(context->widget), "button-press-event",
1050 G_CALLBACK(on_map_button_press_event), context);
1051
1052 g_signal_connect(G_OBJECT(context->widget), "button-release-event",
1053 G_CALLBACK(on_map_button_release_event), context);
1054
1055 /* install handler for timed updates of the gps button */
1056 context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
1057 context->cb_id = gps_register_callback(appdata, gps_callback, context);
1058
1059 #if MAEMO_VERSION_MAJOR == 5
1060 /* prevent some of the main screen things */
1061 context->old_view = appdata->cur_view;
1062 appdata->cur_view = NULL;
1063 #endif
1064
1065 g_signal_connect(G_OBJECT(context->window), "destroy",
1066 G_CALLBACK(on_window_destroy), context);
1067
1068 gtk_container_add(GTK_CONTAINER(context->window), context->widget);
1069 gtk_widget_show_all(GTK_WIDGET(context->window));
1070
1071 /* setup cache state */
1072 map_setup(context);
1073 }