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

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Revision 73 - (hide annotations)
Sun Aug 23 19:38:15 2009 UTC (14 years, 8 months ago) by harbaum
File MIME type: text/plain
File size: 15074 byte(s) 
OSD seperated from osm-gps-map
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 harbaum 73 #include "osm-gps-map-osd-classic.h"
27 harbaum 33 #endif
28    
29 harbaum 55 #define MAP_SOURCE OSM_GPS_MAP_SOURCE_OPENSTREETMAP
30 harbaum 48 #define GPS_DEFAULT_ZOOM 13
31    
32 harbaum 34 #define PROXY_KEY "/system/http_proxy/"
33    
34     static const char *get_proxy_uri(appdata_t *appdata) {
35     static char proxy_buffer[64] = "";
36 harbaum 33
37     /* use environment settings if preset */
38     const char *proxy = g_getenv("http_proxy");
39     if(proxy) {
40     printf("http_proxy: %s\n", proxy);
41     return proxy;
42     }
43    
44 harbaum 34 /* ------------- get proxy settings -------------------- */
45     if(gconf_client_get_bool(appdata->gconf_client,
46     PROXY_KEY "use_http_proxy", NULL)) {
47 harbaum 33
48 harbaum 34 /* we can savely ignore things like "ignore_hosts" since we */
49     /* are pretty sure not inside the net of one of our map renderers */
50     /* (unless the user works at google :-) */
51    
52     /* get basic settings */
53     char *host =
54     gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL);
55     if(host) {
56     int port =
57     gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL);
58 harbaum 33
59 harbaum 34 snprintf(proxy_buffer, sizeof(proxy_buffer),
60     "http://%s:%u", host, port);
61 harbaum 33
62 harbaum 34 g_free(host);
63     }
64 harbaum 35 return proxy_buffer;
65 harbaum 34 }
66    
67 harbaum 35 return NULL;
68 harbaum 33 }
69    
70 harbaum 66 static void
71 harbaum 73 cb_map_gps(osd_button_t but, map_context_t *context) {
72     if(but == OSD_GPS) {
73     pos_t *refpos = get_pos(context->appdata);
74     if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
75     osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
76     refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
77     } else {
78     /* no coordinates given: display the entire world */
79     osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
80     0.0, 0.0, 1);
81     }
82 harbaum 34 }
83 harbaum 33 }
84    
85 harbaum 55 static int dist2pixel(map_context_t *context, float km, float lat) {
86     return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
87     }
88    
89 harbaum 33 static gboolean map_gps_update(gpointer data) {
90     map_context_t *context = (map_context_t*)data;
91    
92 harbaum 51 /* get reference position ... */
93 harbaum 34 pos_t *refpos = get_pos(context->appdata);
94     gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
95 harbaum 33
96 harbaum 51 /* ... and enable "goto" button if it's valid */
97 harbaum 66 osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
98 harbaum 73 OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context);
99 harbaum 34
100 harbaum 51 if(ok) {
101 harbaum 53 float heading = NAN;
102 harbaum 54 int radius = 0;
103 harbaum 51
104 harbaum 53 if(context->appdata->use_gps) {
105     heading = gps_get_heading(context->appdata);
106    
107     /* get error */
108     float eph = gps_get_eph(context->appdata);
109 harbaum 55 if(!isnan(eph))
110     radius = dist2pixel(context, eph/1000, refpos->lat);
111 harbaum 53 }
112    
113     g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
114     osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
115 harbaum 51 refpos->lat, refpos->lon, heading);
116     } else
117     osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
118    
119 harbaum 33 return TRUE;
120     }
121    
122 harbaum 35 static gboolean on_map_configure(GtkWidget *widget,
123     GdkEventConfigure *event,
124     map_context_t *context) {
125 harbaum 33
126 harbaum 48 /* set default values if they are invalid */
127     if(!context->appdata->map.zoom ||
128     isnan(context->appdata->map.pos.lat) ||
129     isnan(context->appdata->map.pos.lon)) {
130     printf("no valid map position found\n");
131    
132     pos_t *refpos = get_pos(context->appdata);
133     if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
134     /* use gps position if present */
135     context->appdata->map.pos = *refpos;
136     context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
137     } else {
138     /* use world map otherwise */
139     context->appdata->map.pos.lat = 0.0;
140     context->appdata->map.pos.lon = 0.0;
141     context->appdata->map.zoom = 1;
142     }
143     }
144 harbaum 35
145 harbaum 48 /* jump to initial position */
146     osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
147     context->appdata->map.pos.lat,
148     context->appdata->map.pos.lon,
149     context->appdata->map.zoom);
150 harbaum 73
151 harbaum 35 return FALSE;
152     }
153    
154 harbaum 38 static void map_draw_cachelist(GtkWidget *map, cache_t *cache) {
155     while(cache) {
156     GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
157    
158     osm_gps_map_add_image(OSM_GPS_MAP(map),
159     cache->pos.lat, cache->pos.lon, icon);
160    
161     cache = cache->next;
162     }
163     }
164    
165 harbaum 41 static void
166     map_cachelist_nearest(cache_t *cache, pos_t *pos,
167     cache_t **result, float *distance) {
168     while(cache) {
169     float dist =
170     pow(cache->pos.lat - pos->lat, 2) +
171     pow(cache->pos.lon - pos->lon, 2);
172    
173     if(!(dist > *distance)) {
174     *result = cache;
175     *distance = dist;
176     }
177    
178     cache = cache->next;
179     }
180     }
181    
182     static cache_t *map_closest(map_context_t *context, pos_t *pos) {
183     cache_t *result = NULL;
184     float distance = NAN;
185    
186     #ifdef USE_MAEMO
187     if(!context->appdata->cur_gpx) {
188     #endif
189     /* search all geocaches */
190     gpx_t *gpx = context->appdata->gpx;
191     while(gpx) {
192     map_cachelist_nearest(gpx->cache, pos, &result, &distance);
193     gpx = gpx->next;
194     }
195     #ifdef USE_MAEMO
196     } else {
197     map_cachelist_nearest(context->appdata->cur_gpx->cache,
198     pos, &result, &distance);
199     }
200     #endif
201    
202     return result;
203     }
204    
205     /* translate between osm-gps-map positions and gpxview ones */
206     pos_t coord2pos(coord_t coo) {
207     pos_t pos;
208 harbaum 61 pos.lat = rad2deg(coo.rlat);
209     pos.lon = rad2deg(coo.rlon);
210 harbaum 41 return pos;
211     }
212    
213 harbaum 47 #define CLICK_FUZZ (24)
214 harbaum 42
215 harbaum 41 static gboolean
216     on_map_button_press_event(GtkWidget *widget,
217     GdkEventButton *event, map_context_t *context) {
218     OsmGpsMap *map = OSM_GPS_MAP(context->widget);
219    
220 harbaum 44 /* got a press event without release event? eat it! */
221     if(context->press_on != NULL) {
222     printf("PRESS: already\n");
223     return TRUE;
224     }
225    
226 harbaum 41 pos_t pos =
227 harbaum 42 coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
228 harbaum 41
229 harbaum 42 cache_t *nearest = map_closest(context, &pos);
230     if(nearest) {
231     float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
232 harbaum 44 if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ)
233 harbaum 42 context->press_on = nearest;
234     }
235 harbaum 44
236 harbaum 41 return FALSE;
237     }
238    
239 harbaum 58 static void
240     cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
241     /* convert the pixbuf into something cairo can handle */
242    
243     // Create a new ImageSurface
244     cairo_surface_t *image_surface =
245     cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
246     gdk_pixbuf_get_width(buf),
247     gdk_pixbuf_get_height(buf));
248    
249     // Create the new Context for the ImageSurface
250     cairo_t *context = cairo_create(image_surface);
251    
252     // Draw the image on the new Context
253     gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
254     cairo_paint(context);
255    
256     // now draw this onto the original context
257     cairo_set_source_surface(cr, image_surface, x, y);
258 harbaum 60
259 harbaum 58 cairo_paint(cr);
260     }
261    
262 harbaum 65 #ifndef BIG_BALLOONS
263 harbaum 60 #define LINE_SKIP 7
264 harbaum 65 #else
265     #define LINE_SKIP 12
266     #endif
267 harbaum 59
268 harbaum 58 static void
269     balloon_draw_cb(cairo_t *cr, OsmGpsMapRect_t *rect, gpointer data) {
270     cache_t *cache = (cache_t*)data;
271    
272     // printf("draw cb for \"%s\"\n", cache->name);
273    
274     #if 0
275     /* draw pink background to check clipping */
276     cairo_rectangle (cr, rect->x-20, rect->y-20, rect->w+40, rect->h+40);
277     cairo_set_source_rgba (cr, 1, 0, 0, 0.3);
278     cairo_fill_preserve (cr);
279     cairo_set_line_width (cr, 0);
280     cairo_stroke (cr);
281     #endif
282    
283     /* leave a little border top and left */
284     gint x = rect->x, y = rect->y;
285    
286     /* draw the cache type icon ... */
287     GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
288     cairo_draw_pixbuf(cr, icon, x, y);
289    
290     /* ... and right of it the waypoint id */
291     cairo_text_extents_t extents;
292    
293 harbaum 60 if(cache->id) {
294     cairo_select_font_face (cr, "Sans",
295     CAIRO_FONT_SLANT_NORMAL,
296     CAIRO_FONT_WEIGHT_BOLD);
297 harbaum 58
298 harbaum 65 #ifndef BIG_BALLOONS
299 harbaum 60 cairo_set_font_size (cr, 20.0);
300 harbaum 65 #else
301     cairo_set_font_size (cr, 36.0);
302     #endif
303    
304 harbaum 60 cairo_text_extents (cr, cache->id, &extents);
305 harbaum 58
306 harbaum 60 /* display id right of icon vertically centered */
307     x += gdk_pixbuf_get_width(icon) + 5;
308     y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
309     cairo_move_to (cr, x, y);
310     cairo_set_source_rgba (cr, 0, 0, 0, 1);
311     cairo_show_text (cr, cache->id);
312     cairo_stroke (cr);
313 harbaum 59
314 harbaum 60 y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
315     } else
316     y += gdk_pixbuf_get_height(icon);
317    
318 harbaum 59 /* return to the left border and below icon/text */
319     x = rect->x;
320    
321 harbaum 60 /* everything from here uses the same font */
322     cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
323 harbaum 59 CAIRO_FONT_WEIGHT_NORMAL);
324 harbaum 65 #ifndef BIG_BALLOONS
325 harbaum 59 cairo_set_font_size (cr, 14.0);
326 harbaum 65 #else
327 harbaum 66 cairo_set_font_size (cr, 22.0);
328 harbaum 65 #endif
329 harbaum 59
330 harbaum 60 if(cache->name) {
331     /* draw cache name */
332     cairo_text_extents (cr, cache->name, &extents);
333     y += extents.height;
334     cairo_move_to (cr, x, y);
335     cairo_set_source_rgba (cr, 0, 0, 0, 1);
336     cairo_show_text (cr, cache->name);
337     cairo_stroke (cr);
338 harbaum 58
339 harbaum 60 /* return to the left border and below text */
340     y += LINE_SKIP;
341     x = rect->x;
342     }
343    
344     if(cache->terrain) {
345     /* draw cache rating */
346     const char *terrain = "Terrain:";
347     icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
348     cairo_text_extents (cr, _(terrain), &extents);
349     y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
350    
351     /* draw "Terrain:" string */
352     cairo_move_to (cr, x, y);
353     cairo_set_source_rgba (cr, 0, 0, 0, 1);
354     cairo_show_text (cr, _(terrain));
355     cairo_stroke (cr);
356     x += extents.width + 2;
357    
358     /* draw terrain stars */
359     cairo_draw_pixbuf(cr, icon, x, y -
360     (gdk_pixbuf_get_height(icon) + extents.height)/2);
361    
362     x += gdk_pixbuf_get_width(icon) + LINE_SKIP;
363     y -= (gdk_pixbuf_get_height(icon) + extents.height)/2;
364     }
365    
366     if(cache->difficulty) {
367     const char *difficulty = "Difficulty:";
368     cairo_text_extents (cr, _(difficulty), &extents);
369     y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
370    
371     /* draw "Difficulty:" string */
372     cairo_move_to (cr, x, y);
373     cairo_set_source_rgba (cr, 0, 0, 0, 1);
374     cairo_show_text (cr, _(difficulty));
375     cairo_stroke (cr);
376     x += extents.width + 2;
377    
378     icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
379     cairo_draw_pixbuf(cr, icon, x, y -
380     (gdk_pixbuf_get_height(icon) + extents.height)/2);
381     }
382 harbaum 58 }
383    
384 harbaum 41 static gboolean
385     on_map_button_release_event(GtkWidget *widget,
386     GdkEventButton *event, map_context_t *context) {
387 harbaum 48 OsmGpsMap *map = OSM_GPS_MAP(context->widget);
388    
389 harbaum 42 if(context->press_on) {
390 harbaum 57 coord_t coo;
391     coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
392    
393 harbaum 42 pos_t pos =
394     coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
395 harbaum 41
396 harbaum 42 cache_t *nearest = map_closest(context, &pos);
397     if(nearest && nearest == context->press_on) {
398     float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
399 harbaum 57 if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) {
400    
401 harbaum 58 osm_gps_map_draw_balloon(map, nearest->pos.lat, nearest->pos.lon,
402     balloon_draw_cb, nearest);
403 harbaum 57 }
404 harbaum 42 }
405 harbaum 44 context->press_on = NULL;
406 harbaum 48 } else {
407     /* save new map position */
408     gfloat lat, lon;
409     g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
410     context->appdata->map.pos.lat = lat;
411     context->appdata->map.pos.lon = lon;
412 harbaum 41 }
413    
414     return FALSE;
415     }
416    
417 harbaum 56 static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
418     appdata_t *appdata = context->appdata;
419    
420     printf("destroy map window\n");
421    
422 harbaum 48 /* save map parameters */
423     OsmGpsMap *map = OSM_GPS_MAP(context->widget);
424     gint zoom;
425     g_object_get(map, "zoom", &zoom, NULL);
426     context->appdata->map.zoom = zoom;
427 harbaum 44
428 harbaum 48 gfloat lat, lon;
429     g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
430     context->appdata->map.pos.lat = lat;
431     context->appdata->map.pos.lon = lon;
432    
433 harbaum 40 #if MAEMO_VERSION_MAJOR == 5
434     /* restore cur_view */
435     context->appdata->cur_view = context->old_view;
436 harbaum 56 #endif
437 harbaum 40
438     gtk_timeout_remove(context->handler_id);
439 harbaum 56
440 harbaum 40 g_free(context);
441 harbaum 56 appdata->map.context = NULL;
442 harbaum 40 }
443    
444 harbaum 33 void map(appdata_t *appdata) {
445 harbaum 56 map_context_t *context = NULL;
446    
447     /* if the map window already exists, just raise it */
448     if(appdata->map.context) {
449     gtk_window_present(GTK_WINDOW(appdata->map.context->window));
450     return;
451     }
452    
453     context = appdata->map.context = g_new0(map_context_t, 1);
454 harbaum 40 context->appdata = appdata;
455 harbaum 33
456 harbaum 41 char *path = g_strdup_printf("%s/map/", appdata->image_path);
457     const char *proxy = get_proxy_uri(appdata);
458    
459     context->widget = g_object_new(OSM_TYPE_GPS_MAP,
460 harbaum 55 "map-source", MAP_SOURCE,
461     "tile-cache", path,
462     "auto-center", FALSE,
463     "record-trip-history", FALSE,
464     "show-trip-history", FALSE,
465     proxy?"proxy-uri":NULL, proxy,
466 harbaum 41 NULL);
467    
468     g_free(path);
469    
470 harbaum 73 osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
471    
472 harbaum 41 char *name = NULL;
473     #ifdef USE_MAEMO
474     if(!appdata->cur_gpx) {
475     #endif
476     /* draw all geocaches */
477     gpx_t *gpx = appdata->gpx;
478     while(gpx) {
479     map_draw_cachelist(context->widget, gpx->cache);
480     gpx = gpx->next;
481     }
482     name = g_strdup(_("all geocaches"));
483     #ifdef USE_MAEMO
484     } else {
485     map_draw_cachelist(context->widget, appdata->cur_gpx->cache);
486 harbaum 44 name = g_strdup(appdata->cur_gpx->name);
487 harbaum 41 }
488     #endif
489    
490     char *title = g_strdup_printf(_("Map - %s"), name);
491     g_free(name);
492    
493 harbaum 56 #ifdef USE_MAEMO
494     #ifdef USE_STACKABLE_WINDOW
495     context->window = hildon_stackable_window_new();
496 harbaum 40 #else
497 harbaum 56 context->window = hildon_window_new();
498     #endif
499     #else
500     context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
501     #endif
502 harbaum 33
503 harbaum 56 gtk_window_set_title(GTK_WINDOW(context->window), title);
504    
505 harbaum 33 #ifndef USE_MAEMO
506 harbaum 56 gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
507 harbaum 33 #endif
508    
509 harbaum 41 g_free(title);
510 harbaum 33
511 harbaum 41 g_signal_connect(G_OBJECT(context->widget), "configure-event",
512     G_CALLBACK(on_map_configure), context);
513 harbaum 33
514 harbaum 41 g_signal_connect(G_OBJECT(context->widget), "button-press-event",
515     G_CALLBACK(on_map_button_press_event), context);
516 harbaum 33
517 harbaum 40 g_signal_connect(G_OBJECT(context->widget), "button-release-event",
518     G_CALLBACK(on_map_button_release_event), context);
519 harbaum 33
520     /* install handler for timed updates of the gps button */
521 harbaum 40 context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
522 harbaum 33
523 harbaum 40 #if MAEMO_VERSION_MAJOR == 5
524     /* prevent some of the main screen things */
525     context->old_view = appdata->cur_view;
526     appdata->cur_view = NULL;
527 harbaum 56 #endif
528 harbaum 40
529 harbaum 56 g_signal_connect(G_OBJECT(context->window), "destroy",
530 harbaum 40 G_CALLBACK(on_window_destroy), context);
531    
532 harbaum 63 gtk_container_add(GTK_CONTAINER(context->window), context->widget);
533 harbaum 56 gtk_widget_show_all(GTK_WIDGET(context->window));
534 harbaum 33 }