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

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Revision 238 - (show annotations)
Sat Dec 12 12:54:37 2009 UTC (14 years, 4 months ago) by harbaum
File MIME type: text/plain
File size: 29525 byte(s)
Cachelist timer redone for fremantle
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 /* draw geocaches and set window title */
241 static void map_setup(map_context_t *context) {
242 char *name = NULL;
243
244 int cache_num = gpx_total_caches_global(context->appdata->gpx);
245
246 if(context->caches_displayed && (cache_num != context->cache_list_len)) {
247 // printf("re-alloc because %p %d/%d\n", context->caches_displayed,
248 // cache_num, context->cache_list_len);
249 g_free(context->caches_displayed);
250 context->caches_displayed = NULL;
251 context->cache_list_len = 0;
252 }
253
254 /* allocate buffer */
255 if(cache_num && !context->caches_displayed) {
256 context->cache_list_len = cache_num;
257 context->caches_displayed = g_new0(cache_display_t, cache_num+1);
258 printf("allocated space to handle %d map icons\n", cache_num);
259 }
260
261 if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
262 if(context->state != MAP_ALL) {
263 printf("map_setup(ALL)\n");
264
265 /* clear any pending balloon */
266 context->balloon = NULL;
267 osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
268
269 #ifdef OSD_NAV
270 /* no navigation in this mode */
271 osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
272 #endif
273
274 /* clear all existing cache images */
275 osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
276 memset(context->caches_displayed, 0,
277 (cache_num+1) * sizeof(cache_display_t));
278
279 /* draw all geocaches and none is semi-transparent */
280 gpx_t *gpx = context->appdata->gpx;
281 while(gpx) {
282 map_draw_gpx(context->appdata, context->caches_displayed,
283 context->widget, gpx, NULL, FALSE);
284 gpx = gpx->next;
285 }
286
287 {
288 int i=0;
289 while(context->caches_displayed[i].id) i++;
290 printf("number of caches actually displayed: %d\n", i);
291 }
292
293 name = g_strdup(_("all"));
294 context->state = MAP_ALL;
295 }
296 } else if(!context->appdata->cur_cache) {
297 if(context->state != MAP_GPX) {
298 printf("map_setup(GPX)\n");
299
300 /* clear any pending balloon */
301 context->balloon = NULL;
302 osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
303
304 #ifdef OSD_NAV
305 /* no navigation in this mode */
306 osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
307 #endif
308
309 /* clear all existing cache images */
310 osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
311 memset(context->caches_displayed, 0,
312 (cache_num+1) * sizeof(cache_display_t));
313
314 /* draw all geocaches and all other gpx files are semi-transparent */
315 map_draw_gpx(context->appdata, context->caches_displayed,
316 context->widget, context->appdata->cur_gpx, NULL, FALSE);
317
318 gpx_t *gpx = context->appdata->gpx;
319 while(gpx) {
320 if(gpx != context->appdata->cur_gpx)
321 map_draw_gpx(context->appdata, context->caches_displayed,
322 context->widget, gpx, NULL, TRUE);
323
324 gpx = gpx->next;
325 }
326
327 name = g_strdup(context->appdata->cur_gpx->name);
328 context->state = MAP_GPX;
329 }
330 } else {
331 cache_t *cache = context->appdata->cur_cache;
332
333 printf("map_setup(CACHE)\n");
334
335 /* clear any pending balloon */
336 context->balloon = NULL;
337 osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
338
339 /* clear all existing ccahe images */
340 osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
341 memset(context->caches_displayed, 0,
342 (cache_num+1) * sizeof(cache_display_t));
343
344 /* draw all geocaches and all but selected one are semi-transparent */
345 gpx_t *gpx = context->appdata->gpx;
346 while(gpx) {
347 map_draw_gpx(context->appdata, context->caches_displayed,
348 context->widget, gpx, cache, FALSE);
349 gpx = gpx->next;
350 }
351
352 name = g_strdup(cache->name);
353 context->state = MAP_CACHE;
354
355 /* navigation in this mode! */
356 pos_t cpos = gpx_cache_pos(cache);
357
358 #ifdef OSD_NAV
359 osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
360 context->appdata->imperial,
361 cpos.lat, cpos.lon, cache->name);
362 #else
363 #warning OSD_NAV not defined!
364 #endif
365 }
366
367 /* also mark geomath position */
368
369 /* remove all existing appearances of this icon first */
370 osm_gps_map_remove_image(OSM_GPS_MAP(context->widget),
371 icon_get(ICON_MISC, 4));
372
373 if(!isnan(context->appdata->geomath.lat) &&
374 !isnan(context->appdata->geomath.lon)) {
375
376 osm_gps_map_add_image(OSM_GPS_MAP(context->widget),
377 context->appdata->geomath.lat,
378 context->appdata->geomath.lon,
379 icon_get(ICON_MISC, 4));
380 }
381
382 if(name) {
383 char *title = g_strdup_printf(_("Map - %s"), name);
384 g_free(name);
385
386 gtk_window_set_title(GTK_WINDOW(context->window), title);
387
388 g_free(title);
389 } else
390 printf("map_setup(keep)\n");
391 }
392
393 static void
394 map_cachelist_nearest(cache_t *cache, pos_t *pos,
395 cache_t **result, float *distance) {
396
397 while(cache) {
398 pos_t cpos = gpx_cache_pos(cache);
399
400 float dist =
401 pow(cpos.lat - pos->lat, 2) +
402 pow(cpos.lon - pos->lon, 2);
403
404 if(!(dist > *distance)) {
405 *result = cache;
406 *distance = dist;
407 }
408
409 cache = cache->next;
410 }
411 }
412
413 static cache_t *map_closest(map_context_t *context, pos_t *pos) {
414 cache_t *result = NULL;
415 float distance = NAN;
416
417 if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
418 /* search all geocaches */
419 gpx_t *gpx = context->appdata->gpx;
420 while(gpx) {
421 map_cachelist_nearest(gpx->cache, pos, &result, &distance);
422 gpx = gpx->next;
423 }
424 } else if(context->appdata->cur_gpx) {
425 map_cachelist_nearest(context->appdata->cur_gpx->cache,
426 pos, &result, &distance);
427 } else
428 result = context->appdata->cur_gpx->cache;
429
430 return result;
431 }
432
433 /* translate between osm-gps-map positions and gpxview ones */
434 pos_t coord2pos(coord_t coo) {
435 pos_t pos;
436 pos.lat = rad2deg(coo.rlat);
437 pos.lon = rad2deg(coo.rlon);
438 return pos;
439 }
440
441 #define CLICK_FUZZ (24)
442
443 static gboolean
444 on_map_button_press_event(GtkWidget *widget,
445 GdkEventButton *event, map_context_t *context) {
446
447 OsmGpsMap *map = OSM_GPS_MAP(context->widget);
448
449 /* check if we actually clicked parts of the OSD */
450 if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
451 return FALSE;
452
453 /* got a press event without release event? eat it! */
454 if(context->press_on != NULL) {
455 printf("PRESS: already\n");
456 return FALSE;
457 }
458
459 pos_t pos =
460 coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
461
462 cache_t *nearest = map_closest(context, &pos);
463 if(nearest) {
464 pos_t cpos = gpx_cache_pos(nearest);
465
466 float dist = gpx_pos_get_distance(pos, cpos, FALSE);
467 if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
468 context->press_on = nearest;
469 }
470
471 return FALSE;
472 }
473
474 static void
475 cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
476 /* convert the pixbuf into something cairo can handle */
477
478 // Create a new ImageSurface
479 cairo_surface_t *image_surface =
480 cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
481 gdk_pixbuf_get_width(buf),
482 gdk_pixbuf_get_height(buf));
483
484 // Create the new Context for the ImageSurface
485 g_assert(image_surface);
486 cairo_t *context = cairo_create(image_surface);
487
488 // Draw the image on the new Context
489 gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
490 cairo_paint(context);
491
492 // now draw this onto the original context
493 cairo_set_source_surface(cr, image_surface, x, y);
494
495 cairo_paint(cr);
496 }
497
498 #ifndef BIG_BALLOONS
499 #define ICON_SIZE ICON_CACHE_TYPE
500 #else
501 #define ICON_SIZE ICON_CACHE_TYPE_1_5X
502 #endif
503
504 #ifndef BIG_BALLOONS
505 #define FONT_SIZE 14.0
506 #else
507 #define FONT_SIZE 22.0
508 #endif
509 #define LINE_SKIP (FONT_SIZE/4)
510
511
512 static void
513 balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
514 printf("balloon event: ");
515
516 map_context_t *context = (map_context_t*)data;
517 cache_t *cache = context->balloon;
518
519 if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
520 printf("draw\n");
521
522 #if 0
523 /* draw pink background to check clipping */
524 cairo_rectangle (event->data.draw.cr,
525 event->data.draw.rect->x-20, event->data.draw.rect->y-20,
526 event->data.draw.rect->w+40, event->data.draw.rect->h+40);
527 cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
528 cairo_fill_preserve (event->data.draw.cr);
529 cairo_set_line_width (event->data.draw.cr, 0);
530 cairo_stroke (event->data.draw.cr);
531 #endif
532
533 /* leave a little border top and left */
534 gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
535
536 /* draw the cache type icon ... */
537 GdkPixbuf *icon = icon_get(ICON_SIZE, cache->type);
538 cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
539
540 if(cache->notes && cache->notes->override) {
541 GdkPixbuf *over = icon_get(ICON_SIZE, 11);
542 cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
543 }
544
545 /* ... and right of it the waypoint id */
546 cairo_text_extents_t extents;
547
548 if(cache->id) {
549 cairo_select_font_face (event->data.draw.cr, "Sans",
550 CAIRO_FONT_SLANT_NORMAL,
551 CAIRO_FONT_WEIGHT_BOLD);
552
553 #ifndef BIG_BALLOONS
554 cairo_set_font_size (event->data.draw.cr, 20.0);
555 #else
556 cairo_set_font_size (event->data.draw.cr, 36.0);
557 #endif
558
559 cairo_text_extents (event->data.draw.cr, cache->id, &extents);
560
561 /* display id right of icon vertically centered */
562 x += gdk_pixbuf_get_width(icon) + 5;
563 y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
564 cairo_move_to (event->data.draw.cr, x, y);
565 cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
566 cairo_show_text (event->data.draw.cr, cache->id);
567 cairo_stroke (event->data.draw.cr);
568
569 y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
570 } else
571 y += gdk_pixbuf_get_height(icon);
572
573 /* return to the left border and below icon/text */
574 x = event->data.draw.rect->x;
575
576 /* everything from here uses the same font */
577 cairo_select_font_face (event->data.draw.cr, "Sans",
578 CAIRO_FONT_SLANT_NORMAL,
579 CAIRO_FONT_WEIGHT_NORMAL);
580
581 cairo_set_font_size (event->data.draw.cr, FONT_SIZE);
582
583 if(cache->name) {
584 /* draw cache name */
585 cairo_text_extents (event->data.draw.cr, cache->name, &extents);
586 cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing);
587 cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
588 cairo_show_text (event->data.draw.cr, cache->name);
589 cairo_stroke (event->data.draw.cr);
590
591 /* return to the left border and below text */
592 y += LINE_SKIP + FONT_SIZE;
593 x = event->data.draw.rect->x;
594 }
595
596 if(cache->terrain) {
597 int text_y = 0, icon_y = 0;
598
599 /* draw cache rating */
600 const char *terrain = "Terrain:";
601 icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
602 cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
603
604 if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
605 text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
606 else
607 icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
608
609 /* draw "Terrain:" string */
610 cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
611 cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
612 cairo_show_text (event->data.draw.cr, _(terrain));
613 cairo_stroke (event->data.draw.cr);
614 x += extents.width + 2;
615
616 /* draw terrain stars */
617 cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
618
619 x += gdk_pixbuf_get_width(icon) + FONT_SIZE/2;
620 }
621
622 if(cache->difficulty) {
623 int text_y = 0, icon_y = 0;
624
625 const char *difficulty = "Difficulty:";
626 icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
627 cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
628
629 if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
630 text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
631 else
632 icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
633
634 /* draw "Difficulty:" string */
635 cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
636 cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
637 cairo_show_text (event->data.draw.cr, _(difficulty));
638 cairo_stroke (event->data.draw.cr);
639 x += extents.width + 2;
640
641 cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
642 }
643
644 /* draw container info */
645 /* TODO ... */
646
647
648 } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
649 printf("click %s event at %d %d\n",
650 event->data.click.down?"down":"up",
651 event->data.click.x, event->data.click.y);
652
653 /* make the main screen jump to that cache */
654 if(!event->data.click.down) {
655 if(context->appdata->cur_cache) {
656 printf("ERROR: no current cache should be visible!\n");
657 } else {
658 gpx_t *is_in = NULL;
659
660 if(!context->appdata->cur_gpx) {
661 printf("click while in \"all\" view\n");
662
663 /* we first need to figure out which gpx file this cache */
664 /* is in so we can open it first */
665 gpx_t *gpx = context->appdata->gpx;
666 while(gpx && !is_in) {
667 cache_t *cur = gpx->cache;
668 while(cur && !is_in) {
669 if(cur == cache)
670 is_in = gpx;
671 cur = cur->next;
672 }
673 gpx = gpx->next;
674 }
675
676 if(is_in)
677 gpxlist_goto_cachelist(context->appdata, is_in);
678
679 } else
680 /* the simple case: there already is an open gpx file and */
681 /* we just jump into the "cache" view */
682 is_in = context->appdata->cur_gpx;
683
684 if(is_in) {
685 printf("selecting %s in %s\n",
686 cache->id,
687 context->appdata->cur_gpx->name);
688
689 cachelist_goto_cache(context->appdata, cache);
690
691 /* give focus to main screen (important for maemo) */
692 printf("raising main window\n");
693 gtk_window_present(GTK_WINDOW(context->appdata->window));
694 }
695 }
696 }
697 } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
698 printf("removed\n");
699 context->balloon = NULL;
700 }
701 }
702
703 static gboolean
704 on_map_button_release_event(GtkWidget *widget,
705 GdkEventButton *event, map_context_t *context) {
706 OsmGpsMap *map = OSM_GPS_MAP(context->widget);
707
708 /* in "MAP_CACHE" state only one cache is visible */
709 /* and the map is in navigation mode. the balloon is */
710 /* pretty useless there */
711 if(context->press_on) {
712
713 coord_t coo;
714 coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
715
716 pos_t pos =
717 coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
718
719 cache_t *nearest = map_closest(context, &pos);
720 if(nearest && nearest == context->press_on) {
721 pos_t cpos = gpx_cache_pos(nearest);
722
723 float dist = gpx_pos_get_distance(pos, cpos, FALSE);
724 if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
725
726 context->balloon = nearest;
727 osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
728 balloon_cb, context);
729 }
730 }
731 context->press_on = NULL;
732 } else {
733 /* save new map position */
734 gfloat lat, lon;
735 g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
736 context->appdata->map.pos.lat = lat;
737 context->appdata->map.pos.lon = lon;
738 }
739
740 return FALSE;
741 }
742
743 static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
744 appdata_t *appdata = context->appdata;
745
746 /* save map parameters */
747 OsmGpsMap *map = OSM_GPS_MAP(context->widget);
748 gint zoom;
749 g_object_get(map, "zoom", &zoom, NULL);
750 context->appdata->map.zoom = zoom;
751
752 gfloat lat, lon;
753 g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
754 context->appdata->map.pos.lat = lat;
755 context->appdata->map.pos.lon = lon;
756
757 gint source;
758 g_object_get(map, "map-source", &source, NULL);
759 context->appdata->map.source = source;
760
761 #if MAEMO_VERSION_MAJOR == 5
762 /* restore cur_view */
763 context->appdata->cur_view = context->old_view;
764 #endif
765
766 gtk_timeout_remove(context->handler_id);
767 gps_unregister_callback(appdata, context->cb_id);
768
769 if(context->caches_displayed) {
770 g_free(context->caches_displayed);
771 context->caches_displayed = NULL;
772 }
773
774 printf("destroy map context\n");
775 g_free(context);
776 appdata->map.context = NULL;
777 }
778
779 #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
780 /* get access to zoom buttons */
781 static void
782 on_window_realize(GtkWidget *widget, gpointer data) {
783 if (widget->window) {
784 unsigned char value = 1;
785 Atom hildon_zoom_key_atom =
786 gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
787 integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
788 Display *dpy =
789 GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
790 Window w = GDK_WINDOW_XID(widget->window);
791
792 XChangeProperty(dpy, w, hildon_zoom_key_atom,
793 integer_atom, 8, PropModeReplace, &value, 1);
794 }
795 }
796 #endif
797
798 /* on maemo a window is either on top or completely invisible. this */
799 /* means that we only need to update the map window if its raised. */
800 /* on ordinary desktops this is different and we always update */
801
802 static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
803 gpointer data) {
804 map_context_t *context = (map_context_t*)data;
805
806 printf("map got focus\n");
807
808 #ifdef USE_MAEMO
809 /* re-enable refresh of map */
810 if(!context->handler_id)
811 context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
812 #endif
813
814 map_setup(context);
815 return FALSE;
816 }
817
818 static gboolean on_focus_out(GtkWidget *widget, GdkEventFocus *event,
819 gpointer data) {
820 map_context_t *context = (map_context_t*)data;
821
822 printf("map lost focus\n");
823
824 /* save new map position */
825 gfloat lat, lon;
826 g_object_get(widget, "latitude", &lat, "longitude", &lon, NULL);
827
828 context->appdata->map.pos.lat = lat;
829 context->appdata->map.pos.lon = lon;
830
831 #ifdef USE_MAEMO
832 gtk_timeout_remove(context->handler_id);
833 context->handler_id = 0;
834 #endif
835
836 return FALSE;
837 }
838
839 void map_update(appdata_t *appdata) {
840 printf("map_update\n");
841 #ifndef USE_MAEMO
842 if(appdata->map.context)
843 map_setup(appdata->map.context);
844 #endif
845 }
846
847 /* callback called by the gps layer whenever gps state changes */
848 static void
849 gps_callback(struct gps_state *state, gpointer data) {
850 printf("map: gps callback\n");
851 }
852
853 void map(appdata_t *appdata) {
854 map_context_t *context = NULL;
855
856 /* if the map window already exists, just raise it */
857 if(appdata->map.context) {
858 printf("using existing map!\n");
859 gtk_window_present(GTK_WINDOW(appdata->map.context->window));
860 map_setup(appdata->map.context);
861 return;
862 }
863
864 context = appdata->map.context = g_new0(map_context_t, 1);
865 printf("allocated new context at %p\n", context);
866
867 context->appdata = appdata;
868 context->state = MAP_NONE;
869
870 /* cleanup old (pre 0.8.7) path if it exists */
871 char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
872 if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
873 printf("old file path %s exists\n", old_path);
874 rmdir_recursive(old_path);
875 }
876
877 /* It is recommanded that all applications share these same */
878 /* map path, so data is only cached once. The path should be: */
879 /* ~/.osm-gps-map on standard PC (users home) */
880 /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
881 /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
882 #if !defined(USE_MAEMO)
883 char *p = getenv("HOME");
884 if(!p) p = "/tmp";
885 char *path = g_strdup_printf("%s/.osm-gps-map", p);
886 #else
887 #if MAEMO_VERSION_MAJOR == 5
888 char *path = g_strdup("/home/user/.osm-gps-map");
889 #else
890 char *path = g_strdup("/media/mmc2/osm-gps-map");
891 #endif
892 #endif
893
894 const char *proxy = get_proxy_uri(appdata);
895
896 gint source = context->appdata->map.source;
897 if(!source) source = MAP_SOURCE;
898
899 context->widget = g_object_new(OSM_TYPE_GPS_MAP,
900 "map-source", source,
901 "tile-cache", path,
902 "auto-center", FALSE,
903 "record-trip-history", FALSE,
904 "show-trip-history", FALSE,
905 proxy?"proxy-uri":NULL, proxy,
906 NULL);
907
908 g_free(path);
909
910 osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
911
912 /* set default values if they are invalid */
913 if(!context->appdata->map.zoom ||
914 isnan(context->appdata->map.pos.lat) ||
915 isnan(context->appdata->map.pos.lon)) {
916 printf("no valid map position found\n");
917
918 pos_t *refpos = get_pos(context->appdata);
919 if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
920 printf("use refpos\n");
921
922 /* use gps position if present */
923 context->appdata->map.pos = *refpos;
924 context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
925 } else {
926 printf("use zero pos\n");
927
928 /* use world map otherwise */
929 context->appdata->map.pos.lat = 0.0;
930 context->appdata->map.pos.lon = 0.0;
931 context->appdata->map.zoom = 1;
932 }
933 }
934
935 osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
936 context->appdata->map.pos.lat,
937 context->appdata->map.pos.lon,
938 context->appdata->map.zoom);
939
940 #ifdef USE_MAEMO
941 /* we don't use a stackable window here on fremantle, since */
942 /* this leaves the main window independent from the map and */
943 /* the user can e.g. still navigate the main menu */
944 context->window = hildon_window_new();
945
946 #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
947 g_signal_connect(G_OBJECT(context->window), "realize",
948 G_CALLBACK(on_window_realize), NULL);
949 #endif // MAEMO_VERSION
950 #else
951 context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
952 #endif
953
954 #ifndef USE_MAEMO
955 gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
956 #endif
957
958 g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
959 G_CALLBACK(on_focus_in), context);
960
961 g_signal_connect(G_OBJECT(context->widget), "focus-out-event",
962 G_CALLBACK(on_focus_out), context);
963
964 g_signal_connect(G_OBJECT(context->widget), "button-press-event",
965 G_CALLBACK(on_map_button_press_event), context);
966
967 g_signal_connect(G_OBJECT(context->widget), "button-release-event",
968 G_CALLBACK(on_map_button_release_event), context);
969
970 /* install handler for timed updates of the gps button */
971 context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
972 context->cb_id = gps_register_callback(appdata, gps_callback, context);
973
974 #if MAEMO_VERSION_MAJOR == 5
975 /* prevent some of the main screen things */
976 context->old_view = appdata->cur_view;
977 appdata->cur_view = NULL;
978 #endif
979
980 g_signal_connect(G_OBJECT(context->window), "destroy",
981 G_CALLBACK(on_window_destroy), context);
982
983 gtk_container_add(GTK_CONTAINER(context->window), context->widget);
984 gtk_widget_show_all(GTK_WIDGET(context->window));
985
986 /* setup cache state */
987 map_setup(context);
988 }