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

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Revision 66 - (hide annotations)
Wed Aug 19 20:03:28 2009 UTC (14 years, 8 months ago) by harbaum
File MIME type: text/plain
File size: 14934 byte(s) 
OSD working
1 harbaum 33 /*
2 harbaum 55 * Copyright (C) 2008-2009 Till Harbaum <till@harbaum.org>.
3 harbaum 33 *
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 harbaum 61 #include "converter.h"
22 harbaum 34 #include <math.h> // for isnan
23 harbaum 33
24     #ifdef ENABLE_OSM_GPS_MAP
25     #include "osm-gps-map.h"
26     #endif
27    
28 harbaum 55 #define MAP_SOURCE OSM_GPS_MAP_SOURCE_OPENSTREETMAP
29 harbaum 48 #define GPS_DEFAULT_ZOOM 13
30    
31 harbaum 34 #define PROXY_KEY "/system/http_proxy/"
32    
33     static const char *get_proxy_uri(appdata_t *appdata) {
34     static char proxy_buffer[64] = "";
35 harbaum 33
36     /* use environment settings if preset */
37     const char *proxy = g_getenv("http_proxy");
38     if(proxy) {
39     printf("http_proxy: %s\n", proxy);
40     return proxy;
41     }
42    
43 harbaum 34 /* ------------- get proxy settings -------------------- */
44     if(gconf_client_get_bool(appdata->gconf_client,
45     PROXY_KEY "use_http_proxy", NULL)) {
46 harbaum 33
47 harbaum 34 /* we can savely ignore things like "ignore_hosts" since we */
48     /* are pretty sure not inside the net of one of our map renderers */
49     /* (unless the user works at google :-) */
50    
51     /* get basic settings */
52     char *host =
53     gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL);
54     if(host) {
55     int port =
56     gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL);
57 harbaum 33
58 harbaum 34 snprintf(proxy_buffer, sizeof(proxy_buffer),
59     "http://%s:%u", host, port);
60 harbaum 33
61 harbaum 34 g_free(host);
62     }
63 harbaum 35 return proxy_buffer;
64 harbaum 34 }
65    
66 harbaum 35 return NULL;
67 harbaum 33 }
68    
69 harbaum 66 static void
70     cb_map_gps(map_context_t *context) {
71 harbaum 34 pos_t *refpos = get_pos(context->appdata);
72     if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
73 harbaum 35 osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
74 harbaum 48 refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
75 harbaum 35 } else {
76     /* no coordinates given: display the entire world */
77     osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
78     0.0, 0.0, 1);
79 harbaum 34 }
80 harbaum 33 }
81    
82 harbaum 55 static int dist2pixel(map_context_t *context, float km, float lat) {
83     return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
84     }
85    
86 harbaum 33 static gboolean map_gps_update(gpointer data) {
87     map_context_t *context = (map_context_t*)data;
88    
89 harbaum 51 /* get reference position ... */
90 harbaum 34 pos_t *refpos = get_pos(context->appdata);
91     gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
92 harbaum 33
93 harbaum 51 /* ... and enable "goto" button if it's valid */
94 harbaum 66 osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
95     OSM_GPS_MAP_OSD_GPS_CALLBACK(ok?cb_map_gps:NULL), context);
96 harbaum 34
97 harbaum 51 if(ok) {
98 harbaum 53 float heading = NAN;
99 harbaum 54 int radius = 0;
100 harbaum 51
101 harbaum 53 if(context->appdata->use_gps) {
102     heading = gps_get_heading(context->appdata);
103    
104     /* get error */
105     float eph = gps_get_eph(context->appdata);
106 harbaum 55 if(!isnan(eph))
107     radius = dist2pixel(context, eph/1000, refpos->lat);
108 harbaum 53 }
109    
110     g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
111     osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
112 harbaum 51 refpos->lat, refpos->lon, heading);
113     } else
114     osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
115    
116 harbaum 33 return TRUE;
117     }
118    
119 harbaum 35 static gboolean on_map_configure(GtkWidget *widget,
120     GdkEventConfigure *event,
121     map_context_t *context) {
122 harbaum 33
123 harbaum 48 /* set default values if they are invalid */
124     if(!context->appdata->map.zoom ||
125     isnan(context->appdata->map.pos.lat) ||
126     isnan(context->appdata->map.pos.lon)) {
127     printf("no valid map position found\n");
128    
129     pos_t *refpos = get_pos(context->appdata);
130     if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
131     /* use gps position if present */
132     context->appdata->map.pos = *refpos;
133     context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
134     } else {
135     /* use world map otherwise */
136     context->appdata->map.pos.lat = 0.0;
137     context->appdata->map.pos.lon = 0.0;
138     context->appdata->map.zoom = 1;
139     }
140     }
141 harbaum 35
142 harbaum 48 /* jump to initial position */
143     osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
144     context->appdata->map.pos.lat,
145     context->appdata->map.pos.lon,
146     context->appdata->map.zoom);
147    
148 harbaum 35 return FALSE;
149     }
150    
151 harbaum 38 static void map_draw_cachelist(GtkWidget *map, cache_t *cache) {
152     while(cache) {
153     GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
154    
155     osm_gps_map_add_image(OSM_GPS_MAP(map),
156     cache->pos.lat, cache->pos.lon, icon);
157    
158     cache = cache->next;
159     }
160     }
161    
162 harbaum 41 static void
163     map_cachelist_nearest(cache_t *cache, pos_t *pos,
164     cache_t **result, float *distance) {
165     while(cache) {
166     float dist =
167     pow(cache->pos.lat - pos->lat, 2) +
168     pow(cache->pos.lon - pos->lon, 2);
169    
170     if(!(dist > *distance)) {
171     *result = cache;
172     *distance = dist;
173     }
174    
175     cache = cache->next;
176     }
177     }
178    
179     static cache_t *map_closest(map_context_t *context, pos_t *pos) {
180     cache_t *result = NULL;
181     float distance = NAN;
182    
183     #ifdef USE_MAEMO
184     if(!context->appdata->cur_gpx) {
185     #endif
186     /* search all geocaches */
187     gpx_t *gpx = context->appdata->gpx;
188     while(gpx) {
189     map_cachelist_nearest(gpx->cache, pos, &result, &distance);
190     gpx = gpx->next;
191     }
192     #ifdef USE_MAEMO
193     } else {
194     map_cachelist_nearest(context->appdata->cur_gpx->cache,
195     pos, &result, &distance);
196     }
197     #endif
198    
199     return result;
200     }
201    
202     /* translate between osm-gps-map positions and gpxview ones */
203     pos_t coord2pos(coord_t coo) {
204     pos_t pos;
205 harbaum 61 pos.lat = rad2deg(coo.rlat);
206     pos.lon = rad2deg(coo.rlon);
207 harbaum 41 return pos;
208     }
209    
210 harbaum 47 #define CLICK_FUZZ (24)
211 harbaum 42
212 harbaum 41 static gboolean
213     on_map_button_press_event(GtkWidget *widget,
214     GdkEventButton *event, map_context_t *context) {
215     OsmGpsMap *map = OSM_GPS_MAP(context->widget);
216    
217 harbaum 44 /* got a press event without release event? eat it! */
218     if(context->press_on != NULL) {
219     printf("PRESS: already\n");
220     return TRUE;
221     }
222    
223 harbaum 41 pos_t pos =
224 harbaum 42 coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
225 harbaum 41
226 harbaum 42 cache_t *nearest = map_closest(context, &pos);
227     if(nearest) {
228     float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
229 harbaum 44 if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ)
230 harbaum 42 context->press_on = nearest;
231     }
232 harbaum 44
233 harbaum 41 return FALSE;
234     }
235    
236 harbaum 58 static void
237     cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
238     /* convert the pixbuf into something cairo can handle */
239    
240     // Create a new ImageSurface
241     cairo_surface_t *image_surface =
242     cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
243     gdk_pixbuf_get_width(buf),
244     gdk_pixbuf_get_height(buf));
245    
246     // Create the new Context for the ImageSurface
247     cairo_t *context = cairo_create(image_surface);
248    
249     // Draw the image on the new Context
250     gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
251     cairo_paint(context);
252    
253     // now draw this onto the original context
254     cairo_set_source_surface(cr, image_surface, x, y);
255 harbaum 60
256 harbaum 58 cairo_paint(cr);
257     }
258    
259 harbaum 65 #ifndef BIG_BALLOONS
260 harbaum 60 #define LINE_SKIP 7
261 harbaum 65 #else
262     #define LINE_SKIP 12
263     #endif
264 harbaum 59
265 harbaum 58 static void
266     balloon_draw_cb(cairo_t *cr, OsmGpsMapRect_t *rect, gpointer data) {
267     cache_t *cache = (cache_t*)data;
268    
269     // printf("draw cb for \"%s\"\n", cache->name);
270    
271     #if 0
272     /* draw pink background to check clipping */
273     cairo_rectangle (cr, rect->x-20, rect->y-20, rect->w+40, rect->h+40);
274     cairo_set_source_rgba (cr, 1, 0, 0, 0.3);
275     cairo_fill_preserve (cr);
276     cairo_set_line_width (cr, 0);
277     cairo_stroke (cr);
278     #endif
279    
280     /* leave a little border top and left */
281     gint x = rect->x, y = rect->y;
282    
283     /* draw the cache type icon ... */
284     GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
285     cairo_draw_pixbuf(cr, icon, x, y);
286    
287     /* ... and right of it the waypoint id */
288     cairo_text_extents_t extents;
289    
290 harbaum 60 if(cache->id) {
291     cairo_select_font_face (cr, "Sans",
292     CAIRO_FONT_SLANT_NORMAL,
293     CAIRO_FONT_WEIGHT_BOLD);
294 harbaum 58
295 harbaum 65 #ifndef BIG_BALLOONS
296 harbaum 60 cairo_set_font_size (cr, 20.0);
297 harbaum 65 #else
298     cairo_set_font_size (cr, 36.0);
299     #endif
300    
301 harbaum 60 cairo_text_extents (cr, cache->id, &extents);
302 harbaum 58
303 harbaum 60 /* display id right of icon vertically centered */
304     x += gdk_pixbuf_get_width(icon) + 5;
305     y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
306     cairo_move_to (cr, x, y);
307     cairo_set_source_rgba (cr, 0, 0, 0, 1);
308     cairo_show_text (cr, cache->id);
309     cairo_stroke (cr);
310 harbaum 59
311 harbaum 60 y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
312     } else
313     y += gdk_pixbuf_get_height(icon);
314    
315 harbaum 59 /* return to the left border and below icon/text */
316     x = rect->x;
317    
318 harbaum 60 /* everything from here uses the same font */
319     cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
320 harbaum 59 CAIRO_FONT_WEIGHT_NORMAL);
321 harbaum 65 #ifndef BIG_BALLOONS
322 harbaum 59 cairo_set_font_size (cr, 14.0);
323 harbaum 65 #else
324 harbaum 66 cairo_set_font_size (cr, 22.0);
325 harbaum 65 #endif
326 harbaum 59
327 harbaum 60 if(cache->name) {
328     /* draw cache name */
329     cairo_text_extents (cr, cache->name, &extents);
330     y += extents.height;
331     cairo_move_to (cr, x, y);
332     cairo_set_source_rgba (cr, 0, 0, 0, 1);
333     cairo_show_text (cr, cache->name);
334     cairo_stroke (cr);
335 harbaum 58
336 harbaum 60 /* return to the left border and below text */
337     y += LINE_SKIP;
338     x = rect->x;
339     }
340    
341     if(cache->terrain) {
342     /* draw cache rating */
343     const char *terrain = "Terrain:";
344     icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
345     cairo_text_extents (cr, _(terrain), &extents);
346     y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
347    
348     /* draw "Terrain:" string */
349     cairo_move_to (cr, x, y);
350     cairo_set_source_rgba (cr, 0, 0, 0, 1);
351     cairo_show_text (cr, _(terrain));
352     cairo_stroke (cr);
353     x += extents.width + 2;
354    
355     /* draw terrain stars */
356     cairo_draw_pixbuf(cr, icon, x, y -
357     (gdk_pixbuf_get_height(icon) + extents.height)/2);
358    
359     x += gdk_pixbuf_get_width(icon) + LINE_SKIP;
360     y -= (gdk_pixbuf_get_height(icon) + extents.height)/2;
361     }
362    
363     if(cache->difficulty) {
364     const char *difficulty = "Difficulty:";
365     cairo_text_extents (cr, _(difficulty), &extents);
366     y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
367    
368     /* draw "Difficulty:" string */
369     cairo_move_to (cr, x, y);
370     cairo_set_source_rgba (cr, 0, 0, 0, 1);
371     cairo_show_text (cr, _(difficulty));
372     cairo_stroke (cr);
373     x += extents.width + 2;
374    
375     icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
376     cairo_draw_pixbuf(cr, icon, x, y -
377     (gdk_pixbuf_get_height(icon) + extents.height)/2);
378     }
379 harbaum 58 }
380    
381 harbaum 41 static gboolean
382     on_map_button_release_event(GtkWidget *widget,
383     GdkEventButton *event, map_context_t *context) {
384 harbaum 48 OsmGpsMap *map = OSM_GPS_MAP(context->widget);
385    
386 harbaum 42 if(context->press_on) {
387 harbaum 57 coord_t coo;
388     coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
389    
390 harbaum 42 pos_t pos =
391     coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
392 harbaum 41
393 harbaum 42 cache_t *nearest = map_closest(context, &pos);
394     if(nearest && nearest == context->press_on) {
395     float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
396 harbaum 57 if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) {
397    
398 harbaum 58 osm_gps_map_draw_balloon(map, nearest->pos.lat, nearest->pos.lon,
399     balloon_draw_cb, nearest);
400 harbaum 57 }
401 harbaum 42 }
402 harbaum 44 context->press_on = NULL;
403 harbaum 48 } else {
404     /* save new map position */
405     gfloat lat, lon;
406     g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
407     context->appdata->map.pos.lat = lat;
408     context->appdata->map.pos.lon = lon;
409 harbaum 41 }
410    
411     return FALSE;
412     }
413    
414 harbaum 56 static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
415     appdata_t *appdata = context->appdata;
416    
417     printf("destroy map window\n");
418    
419 harbaum 48 /* save map parameters */
420     OsmGpsMap *map = OSM_GPS_MAP(context->widget);
421     gint zoom;
422     g_object_get(map, "zoom", &zoom, NULL);
423     context->appdata->map.zoom = zoom;
424 harbaum 44
425 harbaum 48 gfloat lat, lon;
426     g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
427     context->appdata->map.pos.lat = lat;
428     context->appdata->map.pos.lon = lon;
429    
430 harbaum 40 #if MAEMO_VERSION_MAJOR == 5
431     /* restore cur_view */
432     context->appdata->cur_view = context->old_view;
433 harbaum 56 #endif
434 harbaum 40
435     gtk_timeout_remove(context->handler_id);
436 harbaum 56
437 harbaum 40 g_free(context);
438 harbaum 56 appdata->map.context = NULL;
439 harbaum 40 }
440    
441 harbaum 33 void map(appdata_t *appdata) {
442 harbaum 56 map_context_t *context = NULL;
443    
444     /* if the map window already exists, just raise it */
445     if(appdata->map.context) {
446     gtk_window_present(GTK_WINDOW(appdata->map.context->window));
447     return;
448     }
449    
450     context = appdata->map.context = g_new0(map_context_t, 1);
451 harbaum 40 context->appdata = appdata;
452 harbaum 33
453 harbaum 41 char *path = g_strdup_printf("%s/map/", appdata->image_path);
454     const char *proxy = get_proxy_uri(appdata);
455    
456     context->widget = g_object_new(OSM_TYPE_GPS_MAP,
457 harbaum 55 "map-source", MAP_SOURCE,
458     "tile-cache", path,
459     "auto-center", FALSE,
460     "record-trip-history", FALSE,
461     "show-trip-history", FALSE,
462     proxy?"proxy-uri":NULL, proxy,
463 harbaum 41 NULL);
464    
465     g_free(path);
466    
467     char *name = NULL;
468     #ifdef USE_MAEMO
469     if(!appdata->cur_gpx) {
470     #endif
471     /* draw all geocaches */
472     gpx_t *gpx = appdata->gpx;
473     while(gpx) {
474     map_draw_cachelist(context->widget, gpx->cache);
475     gpx = gpx->next;
476     }
477     name = g_strdup(_("all geocaches"));
478     #ifdef USE_MAEMO
479     } else {
480     map_draw_cachelist(context->widget, appdata->cur_gpx->cache);
481 harbaum 44 name = g_strdup(appdata->cur_gpx->name);
482 harbaum 41 }
483     #endif
484    
485     char *title = g_strdup_printf(_("Map - %s"), name);
486     g_free(name);
487    
488 harbaum 56 #ifdef USE_MAEMO
489     #ifdef USE_STACKABLE_WINDOW
490     context->window = hildon_stackable_window_new();
491 harbaum 40 #else
492 harbaum 56 context->window = hildon_window_new();
493     #endif
494     #else
495     context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
496     #endif
497 harbaum 33
498 harbaum 56 gtk_window_set_title(GTK_WINDOW(context->window), title);
499    
500 harbaum 33 #ifndef USE_MAEMO
501 harbaum 56 gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
502 harbaum 33 #endif
503    
504 harbaum 41 g_free(title);
505 harbaum 33
506 harbaum 41 g_signal_connect(G_OBJECT(context->widget), "configure-event",
507     G_CALLBACK(on_map_configure), context);
508 harbaum 33
509 harbaum 41 g_signal_connect(G_OBJECT(context->widget), "button-press-event",
510     G_CALLBACK(on_map_button_press_event), context);
511 harbaum 33
512 harbaum 40 g_signal_connect(G_OBJECT(context->widget), "button-release-event",
513     G_CALLBACK(on_map_button_release_event), context);
514 harbaum 33
515     /* install handler for timed updates of the gps button */
516 harbaum 40 context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
517 harbaum 33
518 harbaum 40 #if MAEMO_VERSION_MAJOR == 5
519     /* prevent some of the main screen things */
520     context->old_view = appdata->cur_view;
521     appdata->cur_view = NULL;
522 harbaum 56 #endif
523 harbaum 40
524 harbaum 56 g_signal_connect(G_OBJECT(context->window), "destroy",
525 harbaum 40 G_CALLBACK(on_window_destroy), context);
526    
527 harbaum 63 gtk_container_add(GTK_CONTAINER(context->window), context->widget);
528 harbaum 56 gtk_widget_show_all(GTK_WIDGET(context->window));
529 harbaum 33 }