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

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Revision 112 - (show annotations)
Tue Sep 15 13:52:04 2009 UTC (14 years, 8 months ago) by harbaum
File MIME type: text/plain
File size: 17668 byte(s) 
Balloon to OSD migration started
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 #include "gpxview.h"
26 #include "converter.h"
27 #include <math.h> // for isnan
28
29 #ifdef ENABLE_OSM_GPS_MAP
30 #include "osm-gps-map.h"
31 #include "osm-gps-map-osd-classic.h"
32 #endif
33
34 #if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5)
35 #include <gdk/gdkx.h>
36 #include <X11/Xatom.h>
37 #endif
38
39 /* default values */
40 #define MAP_SOURCE OSM_GPS_MAP_SOURCE_OPENCYCLEMAP
41 #define GPS_DEFAULT_ZOOM 13
42
43 #define PROXY_KEY "/system/http_proxy/"
44
45 static const char *get_proxy_uri(appdata_t *appdata) {
46 static char proxy_buffer[64] = "";
47
48 /* use environment settings if preset */
49 const char *proxy = g_getenv("http_proxy");
50 if(proxy) {
51 printf("http_proxy: %s\n", proxy);
52 return proxy;
53 }
54
55 /* ------------- get proxy settings -------------------- */
56 if(gconf_client_get_bool(appdata->gconf_client,
57 PROXY_KEY "use_http_proxy", NULL)) {
58
59 /* we can savely ignore things like "ignore_hosts" since we */
60 /* are pretty sure not inside the net of one of our map renderers */
61 /* (unless the user works at google :-) */
62
63 /* get basic settings */
64 char *host =
65 gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL);
66 if(host) {
67 int port =
68 gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL);
69
70 snprintf(proxy_buffer, sizeof(proxy_buffer),
71 "http://%s:%u", host, port);
72
73 g_free(host);
74 }
75 return proxy_buffer;
76 }
77
78 return NULL;
79 }
80
81 static void
82 cb_map_gps(osd_button_t but, map_context_t *context) {
83 if(but == OSD_GPS) {
84 pos_t *refpos = get_pos(context->appdata);
85 if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
86 gint zoom;
87 g_object_get(OSM_GPS_MAP(context->widget), "zoom", &zoom, NULL);
88 if(zoom < 10)
89 osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
90 refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
91 else
92 osm_gps_map_set_center(OSM_GPS_MAP(context->widget),
93 refpos->lat, refpos->lon);
94
95 /* re-enable centering */
96 g_object_set(context->widget, "auto-center", TRUE, NULL);
97 } else {
98 /* no coordinates given: display the entire world */
99 osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
100 0.0, 0.0, 1);
101 }
102 }
103 }
104
105 static int dist2pixel(map_context_t *context, float km, float lat) {
106 return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
107 }
108
109 static gboolean map_gps_update(gpointer data) {
110 map_context_t *context = (map_context_t*)data;
111
112 /* get reference position ... */
113 pos_t *refpos = get_pos(context->appdata);
114 gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
115
116 /* ... and enable "goto" button if it's valid */
117 osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
118 OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context);
119
120 if(ok) {
121 float heading = NAN;
122 int radius = 0;
123
124 if(context->appdata->use_gps) {
125 heading = gps_get_heading(context->appdata);
126
127 /* get error */
128 float eph = gps_get_eph(context->appdata);
129 if(!isnan(eph))
130 radius = dist2pixel(context, eph/1000, refpos->lat);
131 }
132
133 g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
134 osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
135 refpos->lat, refpos->lon, heading);
136 } else
137 osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
138
139 return TRUE;
140 }
141
142 static gboolean on_map_configure(GtkWidget *widget,
143 GdkEventConfigure *event,
144 map_context_t *context) {
145
146 if(!context->map_complete) {
147
148 /* set default values if they are invalid */
149 if(!context->appdata->map.zoom ||
150 isnan(context->appdata->map.pos.lat) ||
151 isnan(context->appdata->map.pos.lon)) {
152 printf("no valid map position found\n");
153
154 pos_t *refpos = get_pos(context->appdata);
155 if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
156 /* use gps position if present */
157 context->appdata->map.pos = *refpos;
158 context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
159 } else {
160 /* use world map otherwise */
161 context->appdata->map.pos.lat = 0.0;
162 context->appdata->map.pos.lon = 0.0;
163 context->appdata->map.zoom = 1;
164 }
165 }
166
167 /* jump to initial position */
168 osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
169 context->appdata->map.pos.lat,
170 context->appdata->map.pos.lon,
171 context->appdata->map.zoom);
172 context->map_complete = TRUE;
173 }
174
175 return FALSE;
176 }
177
178 static void map_draw_cachelist(GtkWidget *map, cache_t *cache) {
179 while(cache) {
180 GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
181
182 osm_gps_map_add_image(OSM_GPS_MAP(map),
183 cache->pos.lat, cache->pos.lon, icon);
184
185 cache = cache->next;
186 }
187 }
188
189 static void
190 map_cachelist_nearest(cache_t *cache, pos_t *pos,
191 cache_t **result, float *distance) {
192 while(cache) {
193 float dist =
194 pow(cache->pos.lat - pos->lat, 2) +
195 pow(cache->pos.lon - pos->lon, 2);
196
197 if(!(dist > *distance)) {
198 *result = cache;
199 *distance = dist;
200 }
201
202 cache = cache->next;
203 }
204 }
205
206 static cache_t *map_closest(map_context_t *context, pos_t *pos) {
207 cache_t *result = NULL;
208 float distance = NAN;
209
210 #ifdef USE_MAEMO
211 if(!context->appdata->cur_gpx) {
212 #endif
213 /* search all geocaches */
214 gpx_t *gpx = context->appdata->gpx;
215 while(gpx) {
216 map_cachelist_nearest(gpx->cache, pos, &result, &distance);
217 gpx = gpx->next;
218 }
219 #ifdef USE_MAEMO
220 } else {
221 map_cachelist_nearest(context->appdata->cur_gpx->cache,
222 pos, &result, &distance);
223 }
224 #endif
225
226 return result;
227 }
228
229 /* translate between osm-gps-map positions and gpxview ones */
230 pos_t coord2pos(coord_t coo) {
231 pos_t pos;
232 pos.lat = rad2deg(coo.rlat);
233 pos.lon = rad2deg(coo.rlon);
234 return pos;
235 }
236
237 #define CLICK_FUZZ (24)
238
239 static gboolean
240 on_map_button_press_event(GtkWidget *widget,
241 GdkEventButton *event, map_context_t *context) {
242 OsmGpsMap *map = OSM_GPS_MAP(context->widget);
243
244 /* check if we actually clicked parts of the OSD */
245 if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
246 return FALSE;
247
248 /* got a press event without release event? eat it! */
249 if(context->press_on != NULL) {
250 printf("PRESS: already\n");
251 return FALSE;
252 }
253
254 pos_t pos =
255 coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
256
257 cache_t *nearest = map_closest(context, &pos);
258 if(nearest) {
259 float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
260 if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ)
261 context->press_on = nearest;
262 }
263
264 return FALSE;
265 }
266
267 static void
268 cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
269 /* convert the pixbuf into something cairo can handle */
270
271 // Create a new ImageSurface
272 cairo_surface_t *image_surface =
273 cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
274 gdk_pixbuf_get_width(buf),
275 gdk_pixbuf_get_height(buf));
276
277 // Create the new Context for the ImageSurface
278 cairo_t *context = cairo_create(image_surface);
279
280 // Draw the image on the new Context
281 gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
282 cairo_paint(context);
283
284 // now draw this onto the original context
285 cairo_set_source_surface(cr, image_surface, x, y);
286
287 cairo_paint(cr);
288 }
289
290 #ifndef BIG_BALLOONS
291 #define LINE_SKIP 7
292 #else
293 #define LINE_SKIP 12
294 #endif
295
296 static void
297 balloon_draw_cb(cairo_t *cr, OsmGpsMapRect_t *rect, gpointer data) {
298 cache_t *cache = (cache_t*)data;
299
300 #if 0
301 /* draw pink background to check clipping */
302 cairo_rectangle (cr, rect->x-20, rect->y-20, rect->w+40, rect->h+40);
303 cairo_set_source_rgba (cr, 1, 0, 0, 0.3);
304 cairo_fill_preserve (cr);
305 cairo_set_line_width (cr, 0);
306 cairo_stroke (cr);
307 #endif
308
309 /* leave a little border top and left */
310 gint x = rect->x, y = rect->y;
311
312 /* draw the cache type icon ... */
313 GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
314 cairo_draw_pixbuf(cr, icon, x, y);
315
316 /* ... and right of it the waypoint id */
317 cairo_text_extents_t extents;
318
319 if(cache->id) {
320 cairo_select_font_face (cr, "Sans",
321 CAIRO_FONT_SLANT_NORMAL,
322 CAIRO_FONT_WEIGHT_BOLD);
323
324 #ifndef BIG_BALLOONS
325 cairo_set_font_size (cr, 20.0);
326 #else
327 cairo_set_font_size (cr, 36.0);
328 #endif
329
330 cairo_text_extents (cr, cache->id, &extents);
331
332 /* display id right of icon vertically centered */
333 x += gdk_pixbuf_get_width(icon) + 5;
334 y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
335 cairo_move_to (cr, x, y);
336 cairo_set_source_rgba (cr, 0, 0, 0, 1);
337 cairo_show_text (cr, cache->id);
338 cairo_stroke (cr);
339
340 y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
341 } else
342 y += gdk_pixbuf_get_height(icon);
343
344 /* return to the left border and below icon/text */
345 x = rect->x;
346
347 /* everything from here uses the same font */
348 cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
349 CAIRO_FONT_WEIGHT_NORMAL);
350 #ifndef BIG_BALLOONS
351 cairo_set_font_size (cr, 14.0);
352 #else
353 cairo_set_font_size (cr, 22.0);
354 #endif
355
356 if(cache->name) {
357 /* draw cache name */
358 cairo_text_extents (cr, cache->name, &extents);
359 y += extents.height;
360 cairo_move_to (cr, x, y);
361 cairo_set_source_rgba (cr, 0, 0, 0, 1);
362 cairo_show_text (cr, cache->name);
363 cairo_stroke (cr);
364
365 /* return to the left border and below text */
366 y += LINE_SKIP;
367 x = rect->x;
368 }
369
370 if(cache->terrain) {
371 /* draw cache rating */
372 const char *terrain = "Terrain:";
373 icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
374 cairo_text_extents (cr, _(terrain), &extents);
375 y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
376
377 /* draw "Terrain:" string */
378 cairo_move_to (cr, x, y);
379 cairo_set_source_rgba (cr, 0, 0, 0, 1);
380 cairo_show_text (cr, _(terrain));
381 cairo_stroke (cr);
382 x += extents.width + 2;
383
384 /* draw terrain stars */
385 cairo_draw_pixbuf(cr, icon, x, y -
386 (gdk_pixbuf_get_height(icon) + extents.height)/2);
387
388 x += gdk_pixbuf_get_width(icon) + LINE_SKIP;
389 y -= (gdk_pixbuf_get_height(icon) + extents.height)/2;
390 }
391
392 if(cache->difficulty) {
393 const char *difficulty = "Difficulty:";
394 cairo_text_extents (cr, _(difficulty), &extents);
395 y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
396
397 /* draw "Difficulty:" string */
398 cairo_move_to (cr, x, y);
399 cairo_set_source_rgba (cr, 0, 0, 0, 1);
400 cairo_show_text (cr, _(difficulty));
401 cairo_stroke (cr);
402 x += extents.width + 2;
403
404 icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
405 cairo_draw_pixbuf(cr, icon, x, y -
406 (gdk_pixbuf_get_height(icon) + extents.height)/2);
407 }
408 }
409
410 static gboolean
411 on_map_button_release_event(GtkWidget *widget,
412 GdkEventButton *event, map_context_t *context) {
413 OsmGpsMap *map = OSM_GPS_MAP(context->widget);
414
415 if(context->press_on) {
416 coord_t coo;
417 coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
418
419 pos_t pos =
420 coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
421
422 cache_t *nearest = map_closest(context, &pos);
423 if(nearest && nearest == context->press_on) {
424 float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
425 if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) {
426
427 osm_gps_map_osd_draw_balloon(map, nearest->pos.lat, nearest->pos.lon,
428 balloon_draw_cb, nearest);
429 }
430 }
431 context->press_on = NULL;
432 } else {
433 /* save new map position */
434 gfloat lat, lon;
435 g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
436 context->appdata->map.pos.lat = lat;
437 context->appdata->map.pos.lon = lon;
438 }
439
440 return FALSE;
441 }
442
443 static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
444 appdata_t *appdata = context->appdata;
445
446 printf("destroy map window\n");
447
448 /* save map parameters */
449 OsmGpsMap *map = OSM_GPS_MAP(context->widget);
450 gint zoom;
451 g_object_get(map, "zoom", &zoom, NULL);
452 context->appdata->map.zoom = zoom;
453
454 gfloat lat, lon;
455 g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
456 context->appdata->map.pos.lat = lat;
457 context->appdata->map.pos.lon = lon;
458
459 gint source;
460 g_object_get(map, "map-source", &source, NULL);
461 context->appdata->map.source = source;
462
463 #if MAEMO_VERSION_MAJOR == 5
464 /* restore cur_view */
465 context->appdata->cur_view = context->old_view;
466 #endif
467
468 gtk_timeout_remove(context->handler_id);
469
470 g_free(context);
471 appdata->map.context = NULL;
472 }
473
474 #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
475 /* get access to zoom buttons */
476 static void
477 on_window_realize(GtkWidget *widget, gpointer data) {
478 if (widget->window) {
479 unsigned char value = 1;
480 Atom hildon_zoom_key_atom =
481 gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
482 integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
483 Display *dpy =
484 GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
485 Window w = GDK_WINDOW_XID(widget->window);
486
487 XChangeProperty(dpy, w, hildon_zoom_key_atom,
488 integer_atom, 8, PropModeReplace, &value, 1);
489 }
490 }
491 #endif
492
493 void map(appdata_t *appdata) {
494 map_context_t *context = NULL;
495
496 /* if the map window already exists, just raise it */
497 if(appdata->map.context) {
498 gtk_window_present(GTK_WINDOW(appdata->map.context->window));
499 return;
500 }
501
502 context = appdata->map.context = g_new0(map_context_t, 1);
503 context->appdata = appdata;
504 context->map_complete = FALSE;
505
506 /* cleanup old (pre 0.8.7) path if it exists */
507 char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
508 if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
509 printf("old file path %s exists\n", old_path);
510 rmdir_recursive(old_path);
511 }
512
513 /* It is recommanded that all applications share these same */
514 /* map path, so data is only cached once. The path should be: */
515 /* ~/.osm-gps-map on standard PC (users home) */
516 /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
517 /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
518 #if !defined(USE_MAEMO)
519 char *p = getenv("HOME");
520 if(!p) p = "/tmp";
521 char *path = g_strdup_printf("%s/.osm-gps-map", p);
522 #else
523 #if MAEMO_VERSION_MAJOR == 5
524 char *path = g_strdup("/home/user/.osm-gps-map");
525 #else
526 char *path = g_strdup("/media/mmc2/osm-gps-map");
527 #endif
528 #endif
529
530 const char *proxy = get_proxy_uri(appdata);
531
532 gint source = context->appdata->map.source;
533 if(!source) source = MAP_SOURCE;
534
535 context->widget = g_object_new(OSM_TYPE_GPS_MAP,
536 "map-source", source,
537 "tile-cache", path,
538 "auto-center", FALSE,
539 "record-trip-history", FALSE,
540 "show-trip-history", FALSE,
541 proxy?"proxy-uri":NULL, proxy,
542 NULL);
543
544 g_free(path);
545
546 osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
547
548 char *name = NULL;
549 #ifdef USE_MAEMO
550 if(!appdata->cur_gpx) {
551 #endif
552 /* draw all geocaches */
553 gpx_t *gpx = appdata->gpx;
554 while(gpx) {
555 map_draw_cachelist(context->widget, gpx->cache);
556 gpx = gpx->next;
557 }
558 name = g_strdup(_("all geocaches"));
559 #ifdef USE_MAEMO
560 } else {
561 map_draw_cachelist(context->widget, appdata->cur_gpx->cache);
562 name = g_strdup(appdata->cur_gpx->name);
563 }
564 #endif
565
566 char *title = g_strdup_printf(_("Map - %s"), name);
567 g_free(name);
568
569 #ifdef USE_MAEMO
570 #ifdef USE_STACKABLE_WINDOW
571 context->window = hildon_stackable_window_new();
572 /* try to enable the zoom buttons. don't do this on x86 as it breaks */
573 /* at runtime with cygwin x */
574 #ifndef __i386__
575 g_signal_connect(G_OBJECT(context->window), "realize",
576 G_CALLBACK(on_window_realize), NULL);
577 #endif // MAEMO_VERSION
578 #else
579 context->window = hildon_window_new();
580 #endif
581 #else
582 context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
583 #endif
584
585 gtk_window_set_title(GTK_WINDOW(context->window), title);
586
587 #ifndef USE_MAEMO
588 gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
589 #endif
590
591 g_free(title);
592
593 g_signal_connect(G_OBJECT(context->widget), "configure-event",
594 G_CALLBACK(on_map_configure), context);
595
596 g_signal_connect(G_OBJECT(context->widget), "button-press-event",
597 G_CALLBACK(on_map_button_press_event), context);
598
599 g_signal_connect(G_OBJECT(context->widget), "button-release-event",
600 G_CALLBACK(on_map_button_release_event), context);
601
602 /* install handler for timed updates of the gps button */
603 context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
604
605 #if MAEMO_VERSION_MAJOR == 5
606 /* prevent some of the main screen things */
607 context->old_view = appdata->cur_view;
608 appdata->cur_view = NULL;
609 #endif
610
611 g_signal_connect(G_OBJECT(context->window), "destroy",
612 G_CALLBACK(on_window_destroy), context);
613
614 gtk_container_add(GTK_CONTAINER(context->window), context->widget);
615 gtk_widget_show_all(GTK_WIDGET(context->window));
616 }