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

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revision 33 by harbaum, Tue Jul 28 13:21:40 2009 UTC revision 283 by harbaum, Thu May 27 19:13:18 2010 UTC
# Line 1  Line 1 
1  /*  /*
2   * Copyright (C) 2008 Till Harbaum <till@harbaum.org>.   * Copyright (C) 2008-2009 Till Harbaum <till@harbaum.org>.
3   *   *
4   * This file is part of GPXView.   * This file is part of GPXView.
5   *   *
# Line 17  Line 17 
17   * along with GPXView.  If not, see <http://www.gnu.org/licenses/>.   * 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"  #include "gpxview.h"
31    #include "converter.h"
32    #include <math.h>    // for isnan
33    
34  #ifdef ENABLE_OSM_GPS_MAP  #ifdef ENABLE_OSM_GPS_MAP
35  #include "osm-gps-map.h"  #include "osm-gps-map.h"
36    #include "osm-gps-map-osd-classic.h"
37  #endif  #endif
38    
39  typedef struct {  #if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5)
40    GtkWidget *widget;  #include <gdk/gdkx.h>
41    GtkWidget *zoomin, *zoomout, *gps;  #include <X11/Xatom.h>
42    gint handler_id;  #endif
43  } map_context_t;  
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(void) {  static const char *get_proxy_uri(appdata_t *appdata) {
51    static char proxy_buffer[64];    static char proxy_buffer[64] = "";
52    
53    /* use environment settings if preset */    /* use environment settings if preset */
54    const char *proxy = g_getenv("http_proxy");    const char *proxy = g_getenv("http_proxy");
55    if(proxy) {    if(proxy) {
56      printf("http_proxy: %s\n", proxy);      printf("map http proxy from env: %s\n", proxy);
57      return proxy;      return proxy;
58    }    }
59    
60  #if 0    /* ------------- get proxy settings -------------------- */
61    /* otherwise try settings */    if(gconf_client_get_bool(appdata->gconf_client,
62    if(!settings || !settings->proxy ||                             PROXY_KEY "use_http_proxy", NULL)) {
63       !settings->proxy->host) return NULL;  
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    
88    pos_t *map_gps_get_pos(map_context_t *context) {
89      static pos_t pos;
90    
91      if(context->gps.set & FIX_LATLON_SET) {
92        pos.lat = context->gps.fix.latitude;
93        pos.lon = context->gps.fix.longitude;
94        return &pos;
95      }
96    
97      return NULL;
98    }
99    
100    pos_t *map_get_pos(map_context_t *context) {
101      pos_t *pos = &context->appdata->home;
102    
103      if(context->appdata->active_location) {
104        int i = context->appdata->active_location-1;
105        location_t *loc = context->appdata->location;
106        while(i--) loc = loc->next;
107        pos = &loc->pos;
108      }
109    
110      if(context->appdata->use_gps)
111        pos = map_gps_get_pos(context);
112    
113    snprintf(proxy_buffer, sizeof(proxy_buffer), "%s%s:%u",    return pos;
114             strncmp(settings->proxy->host, "http://", 7)?"http://":"",  }
115             settings->proxy->host, settings->proxy->port);  
116    float map_gps_get_heading(map_context_t *context) {
117      if(context->gps.set & FIX_TRACK_SET)
118        return context->gps.fix.track;
119    
120      return NAN;
121    }
122    
123    float map_gps_get_eph(map_context_t *context) {
124      if(context->gps.set & FIX_HERR_SET)
125        return context->gps.fix.eph;
126    
127      return NAN;
128    }
129    
130    /* callback called by the gps layer whenever gps state changes */
131    static void
132    gps_callback(gps_mask_t set, struct gps_t *fix, void *data) {
133      map_context_t *context = (map_context_t*)data;
134    
135      printf("map: gps callback\n");
136    
137      context->gps.set = set;
138      memcpy(&context->gps.fix, fix, sizeof(struct gps_t));
139    }
140    
141    proxy_buffer[sizeof(proxy_buffer)-1] = 0;  static void
142    printf("gconf_proxy: %s\n", proxy_buffer);  cb_map_gps(osd_button_t but, map_context_t *context) {
143    
144      if(but == OSD_GPS) {
145        printf("clicked OSD_GPS %p\n", context);
146        printf("clicked OSD_GPS a %p\n", context->appdata);
147    
148        pos_t *refpos = get_pos(context->appdata);
149        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
150          gint zoom;
151          g_object_get(OSM_GPS_MAP(context->widget), "zoom", &zoom, NULL);
152          if(zoom < 10)
153            osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
154                                      refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
155          else
156            osm_gps_map_set_center(OSM_GPS_MAP(context->widget),
157                                   refpos->lat, refpos->lon);
158    
159          /* re-enable centering */
160          g_object_set(context->widget, "auto-center", TRUE, NULL);
161        } else {
162          /* no coordinates given: display the entire world */
163          osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
164                                    0.0, 0.0, 1);
165        }
166      }
167    }
168    
169    static int dist2pixel(map_context_t *context, float km, float lat) {
170      return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
171    }
172    
173    static gboolean map_gps_update(gpointer data) {
174      map_context_t *context = (map_context_t*)data;
175    
176    #ifdef USE_MAEMO
177      if(context->appdata->goto_disable_screensaver)
178        if(osso_display_blanking_pause(context->appdata->osso_context) != OSSO_OK)
179          fprintf(stderr, "error with display blank\n");
180  #endif  #endif
181    
182    return proxy_buffer;    /* get reference position ... */
183      pos_t *refpos = map_get_pos(context);
184      gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
185    
186      /* ... and enable "goto" button if it's valid */
187      if(ok != context->goto_is_enabled) {
188        osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
189                    OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context);
190        context->goto_is_enabled = ok;
191      }
192    
193      if(ok) {
194        float heading = NAN;
195        int radius = 0;
196    
197        if(context->appdata->use_gps) {
198          heading = map_gps_get_heading(context);
199    
200          /* get error */
201          float eph = map_gps_get_eph(context);
202          if(!isnan(eph))
203            radius = dist2pixel(context, eph/1000, refpos->lat);
204        }
205    
206        /* TODO: in order to save energy: only draw if state actually changed */
207    
208        g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
209        osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
210                             refpos->lat, refpos->lon, heading);
211      } else
212        osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
213    
214      return TRUE;
215  }  }
216    
217  static void map_zoom(map_context_t *context, int step) {  static void map_draw_cache(GtkWidget *map, cache_t *cache, gboolean semi) {
218    int zoom;    int type = semi?ICON_CACHE_TYPE_SEMI:ICON_CACHE_TYPE;
219    OsmGpsMap *map = OSM_GPS_MAP(context->widget);  
220    g_object_get(map, "zoom", &zoom, NULL);    GdkPixbuf *icon = icon_get(type, cache->type);
221    zoom = osm_gps_map_set_zoom(map, zoom+step);    GdkPixbuf *over = NULL;
222    
223      if(cache->mine)                   over = icon_get(type, 14);
224      else if(cache->found)             over = icon_get(type, 12);
225      else if(cache->notes) {
226        if(cache->notes->found)         over = icon_get(type, 12);
227        else if(cache->notes->override) over = icon_get(type, 11);
228        else                            over = icon_get(type, 13);
229      }
230    
231    /* enable/disable zoom buttons as required */    pos_t *pos = &cache->pos;
232    gtk_widget_set_sensitive(context->zoomin, zoom<17);    /* check if there's also an overwritten coordinate */
233    gtk_widget_set_sensitive(context->zoomout, zoom>1);    if(cache->notes && cache->notes->override)
234        pos = &cache->notes->pos;
235    
236      if(!isnan(pos->lat) && !isnan(pos->lon)) {
237        osm_gps_map_add_image(OSM_GPS_MAP(map),
238                              pos->lat, pos->lon, icon);
239        if(over)
240          osm_gps_map_add_image(OSM_GPS_MAP(map),
241                                pos->lat, pos->lon, over);
242      }
243  }  }
244    
245  static gboolean  static void map_draw_wpt(GtkWidget *map, cache_t *cache, wpt_t *wpt) {
246  cb_map_zoomin(GtkButton *button, map_context_t *context) {    /* only draw wpts that don't equal the main point */
247    map_zoom(context, +1);    if(pos_differ(&cache->pos, &wpt->pos)) {
248    return FALSE;      if(!isnan(wpt->pos.lat) && !isnan(wpt->pos.lon))  {
249          GdkPixbuf *icon =
250            icon_get(ICON_WPT, (wpt->sym!=WPT_SYM_UNKNOWN)?
251                     wpt->sym:WPT_SYM_REFPOINT);
252    
253          osm_gps_map_add_image(OSM_GPS_MAP(map),
254                                wpt->pos.lat, wpt->pos.lon, icon);
255        }
256      }
257    }
258    
259    static void map_draw_gpx(appdata_t *appdata, cache_display_t *caches,
260                             GtkWidget *map, gpx_t *gpx,
261                             cache_t *nav, gboolean semi) {
262      if(!gpx->notes_loaded) {
263        notes_load_all(appdata, gpx);
264        gpx->notes_loaded = TRUE;
265      }
266    
267      cache_t *cache = gpx->cache;
268      while(cache) {
269        /* search if we have that cache already in our list/displayed */
270        int i=0;
271        while(caches[i].id && (strcmp(caches[i].id, cache->id) != 0))
272          i++;
273    
274        if(!caches[i].id) {
275          /* if nav is given draw all other caches semitransparent. */
276          /* if nav is not given do what semi sais */
277          map_draw_cache(map, cache, nav?(cache != nav):semi);
278          caches[i].id = cache->id;
279    
280          /* also draw waypoints of nav cache */
281          if(nav && cache == nav) {
282            wpt_t *wpt = cache->wpt;
283            while(wpt) {
284              map_draw_wpt(map, cache, wpt);
285              wpt = wpt->next;
286            }
287          }
288        }
289    
290        cache = cache->next;
291      }
292    }
293    
294    static cache_t *cache_search_first(gpx_t *gpx, cache_t *cache) {
295      while(gpx) {
296        cache_t *cur = gpx->cache;
297        while(cur) {
298          /* we do a string comparision to make sure that if copies */
299          /* exist, we get the original one */
300          if(!strcmp(cache->id, cur->id))
301             return cur;
302    
303          cur = cur->next;
304        }
305        gpx = gpx->next;
306      }
307      g_assert(FALSE);
308      return NULL;
309    }
310    
311    /* draw geocaches and set window title */
312    static void map_setup(map_context_t *context) {
313      char *name = NULL;
314    
315      int cache_num = gpx_total_caches_global(context->appdata->gpx);
316    
317      if(context->caches_displayed && (cache_num != context->cache_list_len)) {
318        //    printf("re-alloc because %p %d/%d\n", context->caches_displayed,
319        //     cache_num, context->cache_list_len);
320        g_free(context->caches_displayed);
321        context->caches_displayed = NULL;
322        context->cache_list_len = 0;
323      }
324    
325      /* allocate buffer */
326      if(cache_num && !context->caches_displayed) {
327        context->cache_list_len = cache_num;
328        context->caches_displayed = g_new0(cache_display_t, cache_num+1);
329        printf("allocated space to handle %d map icons\n", cache_num);
330      }
331    
332      if(context->appdata->search_results && !context->appdata->cur_cache) {
333        if(context->state != MAP_SEARCH) {
334          printf("map_setup(SEARCH)\n");
335    
336          /* clear any pending balloon */
337          context->balloon = NULL;
338          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
339    
340    #ifdef OSD_NAV
341          /* no navigation in this mode */
342          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
343    #endif
344    
345          /* clear all existing cache images */
346          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
347    
348          if(context->caches_displayed) {
349            memset(context->caches_displayed, 0,
350                   (cache_num+1) * sizeof(cache_display_t));
351    
352            /* draw search results and all other gpx files are semi-transparent */
353            map_draw_gpx(context->appdata, context->caches_displayed,
354                         context->widget, context->appdata->search_results,
355                         NULL, FALSE);
356    
357            gpx_t *gpx = context->appdata->gpx;
358            while(gpx) {
359              map_draw_gpx(context->appdata, context->caches_displayed,
360                           context->widget, gpx, NULL, TRUE);
361    
362              gpx = gpx->next;
363            }
364          }
365          name = g_strdup(_("Search results"));
366          context->state = MAP_SEARCH;
367        }
368      } else if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
369        if(context->state != MAP_ALL) {
370          printf("map_setup(ALL)\n");
371    
372          /* clear any pending balloon */
373          context->balloon = NULL;
374          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
375    
376    #ifdef OSD_NAV
377          /* no navigation in this mode */
378          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
379    #endif
380    
381          /* clear all existing cache images */
382          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
383          if(context->caches_displayed) {
384            memset(context->caches_displayed, 0,
385                   (cache_num+1) * sizeof(cache_display_t));
386    
387            /* draw all geocaches and none is semi-transparent */
388            gpx_t *gpx = context->appdata->gpx;
389            while(gpx) {
390              map_draw_gpx(context->appdata, context->caches_displayed,
391                           context->widget, gpx, NULL, FALSE);
392              gpx = gpx->next;
393            }
394    
395            {
396              int i=0;
397              while(context->caches_displayed[i].id) i++;
398              printf("number of caches actually displayed: %d\n", i);
399            }
400          }
401          name = g_strdup(_("all"));
402          context->state = MAP_ALL;
403        }
404      } else if(!context->appdata->cur_cache) {
405        if(context->state != MAP_GPX) {
406          printf("map_setup(GPX)\n");
407    
408          /* clear any pending balloon */
409          context->balloon = NULL;
410          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
411    
412    #ifdef OSD_NAV
413          /* no navigation in this mode */
414          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
415    #endif
416    
417          /* clear all existing cache images */
418          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
419          if(context->caches_displayed) {
420            memset(context->caches_displayed, 0,
421                   (cache_num+1) * sizeof(cache_display_t));
422    
423            /* draw all geocaches and all other gpx files are semi-transparent */
424            map_draw_gpx(context->appdata, context->caches_displayed,
425                         context->widget, context->appdata->cur_gpx, NULL, FALSE);
426    
427            gpx_t *gpx = context->appdata->gpx;
428            while(gpx) {
429              if(gpx != context->appdata->cur_gpx)
430                map_draw_gpx(context->appdata, context->caches_displayed,
431                             context->widget, gpx, NULL, TRUE);
432    
433              gpx = gpx->next;
434            }
435          }
436    
437          name = g_strdup(context->appdata->cur_gpx->name);
438          context->state = MAP_GPX;
439        }
440      } else {
441        cache_t *cache = context->appdata->cur_cache;
442    
443        printf("map_setup(CACHE)\n");
444    
445        /* clear any pending balloon */
446        context->balloon = NULL;
447        osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
448    
449        /* clear all existing ccahe images */
450        osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
451        if(context->caches_displayed) {
452          memset(context->caches_displayed, 0,
453                 (cache_num+1) * sizeof(cache_display_t));
454    
455          /* Make sure we really work on the first copy in the list as */
456          /* only this is being used if duplicates exist */
457          cache = cache_search_first(context->appdata->gpx, cache);
458    
459          /* draw all geocaches and all but selected one are semi-transparent */
460          gpx_t *gpx = context->appdata->gpx;
461          while(gpx) {
462            map_draw_gpx(context->appdata, context->caches_displayed,
463                         context->widget, gpx, cache, FALSE);
464            gpx = gpx->next;
465          }
466        }
467    
468        name = g_strdup(cache->name);
469        context->state = MAP_CACHE;
470    
471        /* navigation in this mode! */
472        pos_t cpos = gpx_cache_pos(cache);
473    
474    #ifdef OSD_NAV
475        osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
476                                  context->appdata->imperial,
477                                  cpos.lat, cpos.lon, cache->name);
478    #else
479    #warning OSD_NAV not defined!
480    #endif
481      }
482    
483      /* also mark geomath position */
484    
485      /* remove all existing appearances of this icon first */
486      osm_gps_map_remove_image(OSM_GPS_MAP(context->widget),
487                               icon_get(ICON_MISC, 4));
488    
489      if(!isnan(context->appdata->geomath.lat) &&
490         !isnan(context->appdata->geomath.lon))  {
491    
492        osm_gps_map_add_image(OSM_GPS_MAP(context->widget),
493                              context->appdata->geomath.lat,
494                              context->appdata->geomath.lon,
495                              icon_get(ICON_MISC, 4));
496      }
497    
498      if(name) {
499        gtk_window_set_title(GTK_WINDOW(context->window), name);
500        g_free(name);
501      } else
502        printf("map_setup(keep)\n");
503    }
504    
505    static void
506    map_cachelist_nearest(cache_t *cache, pos_t *pos,
507                          cache_t **result, float *distance) {
508    
509      while(cache) {
510        pos_t cpos = gpx_cache_pos(cache);
511    
512        float dist =
513          pow(cpos.lat - pos->lat, 2) +
514          pow(cpos.lon - pos->lon, 2);
515    
516        if(!(dist > *distance)) {
517          *result = cache;
518          *distance = dist;
519        }
520    
521        cache = cache->next;
522      }
523  }  }
524    
525    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
526      cache_t *result = NULL;
527      float distance = NAN;
528    
529      if(context->appdata->search_results && !context->appdata->cur_cache) {
530        /* search search results */
531        map_cachelist_nearest(context->appdata->search_results->cache,
532                              pos, &result, &distance);
533      } else if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
534        /* search all geocaches */
535        gpx_t *gpx = context->appdata->gpx;
536        while(gpx) {
537          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
538          gpx = gpx->next;
539        }
540      } else if(context->appdata->cur_gpx) {
541        /* search in current gpx file */
542        map_cachelist_nearest(context->appdata->cur_gpx->cache,
543                              pos, &result, &distance);
544      } else
545        result = context->appdata->cur_cache;
546    
547      /* make sure this is the first hit */
548      if(context->caches_displayed)
549        result = cache_search_first(context->appdata->gpx, result);
550    
551      return result;
552    }
553    
554    /* translate between osm-gps-map positions and gpxview ones */
555    pos_t coord2pos(coord_t coo) {
556      pos_t pos;
557      pos.lat = rad2deg(coo.rlat);
558      pos.lon = rad2deg(coo.rlon);
559      return pos;
560    }
561    
562    #define CLICK_FUZZ (24)
563    
564  static gboolean  static gboolean
565  cb_map_zoomout(GtkButton *button, map_context_t *context) {  on_map_button_press_event(GtkWidget *widget,
566    map_zoom(context, -1);                              GdkEventButton *event, map_context_t *context) {
567    
568      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
569    
570      /* check if we actually clicked parts of the OSD */
571      if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
572        return FALSE;
573    
574      /* got a press event without release event? eat it! */
575      if(context->press_on != NULL) {
576        printf("PRESS: already\n");
577        return FALSE;
578      }
579    
580      pos_t pos =
581        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
582    
583      cache_t *nearest = map_closest(context, &pos);
584      if(nearest) {
585        pos_t cpos = gpx_cache_pos(nearest);
586    
587        float dist = gpx_pos_get_distance(pos, cpos, FALSE);
588        if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
589          context->press_on = nearest;
590      }
591    
592    return FALSE;    return FALSE;
593  }  }
594    
595    static void
596    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
597      /* convert the pixbuf into something cairo can handle */
598    
599      // Create a new ImageSurface
600      cairo_surface_t *image_surface =
601        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
602                                   gdk_pixbuf_get_width(buf),
603                                   gdk_pixbuf_get_height(buf));
604    
605      // Create the new Context for the ImageSurface
606      g_assert(image_surface);
607      cairo_t *context = cairo_create(image_surface);
608    
609      // Draw the image on the new Context
610      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
611      cairo_paint(context);
612    
613      // now draw this onto the original context
614      cairo_set_source_surface(cr, image_surface, x, y);
615    
616      cairo_paint(cr);
617    }
618    
619    #ifndef BIG_BALLOONS
620    #define ICON_SIZE  ICON_CACHE_TYPE
621    #else
622    #define ICON_SIZE  ICON_CACHE_TYPE_1_5X
623    #endif
624    
625    #ifndef BIG_BALLOONS
626    #define FONT_SIZE 14.0
627    #else
628    #define FONT_SIZE 22.0
629    #endif
630    #define LINE_SKIP  (FONT_SIZE/4)
631    
632    
633    static void
634    balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
635      printf("balloon event: ");
636    
637      map_context_t *context = (map_context_t*)data;
638      cache_t *cache = context->balloon;
639    
640      if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
641        printf("draw\n");
642    
643    #if 0
644        /* draw pink background to check clipping */
645        cairo_rectangle (event->data.draw.cr,
646                         event->data.draw.rect->x-20, event->data.draw.rect->y-20,
647                         event->data.draw.rect->w+40, event->data.draw.rect->h+40);
648        cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
649        cairo_fill_preserve (event->data.draw.cr);
650        cairo_set_line_width (event->data.draw.cr, 0);
651        cairo_stroke (event->data.draw.cr);
652    #endif
653    
654        /* leave a little border top and left */
655        gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
656    
657        /* draw the cache type icon ... */
658        GdkPixbuf *icon = icon_get(ICON_SIZE, cache->type);
659        cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
660    
661        if(cache->notes && cache->notes->override) {
662          GdkPixbuf *over = icon_get(ICON_SIZE, 11);
663          cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
664        }
665    
666        /* ... and right of it the waypoint id */
667        cairo_text_extents_t extents;
668    
669        if(cache->id) {
670          cairo_select_font_face (event->data.draw.cr, "Sans",
671                                  CAIRO_FONT_SLANT_NORMAL,
672                                  CAIRO_FONT_WEIGHT_BOLD);
673    
674    #ifndef BIG_BALLOONS
675          cairo_set_font_size (event->data.draw.cr, 20.0);
676    #else
677          cairo_set_font_size (event->data.draw.cr, 36.0);
678    #endif
679    
680          cairo_text_extents (event->data.draw.cr, cache->id, &extents);
681    
682          /* display id right of icon vertically centered */
683          x += gdk_pixbuf_get_width(icon) + 5;
684          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
685          cairo_move_to (event->data.draw.cr, x, y);
686          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
687          cairo_show_text (event->data.draw.cr, cache->id);
688          cairo_stroke (event->data.draw.cr);
689    
690          y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
691        } else
692          y += gdk_pixbuf_get_height(icon);
693    
694        /* return to the left border and below icon/text */
695        x = event->data.draw.rect->x;
696    
697        /* everything from here uses the same font */
698        cairo_select_font_face (event->data.draw.cr, "Sans",
699                                CAIRO_FONT_SLANT_NORMAL,
700                                CAIRO_FONT_WEIGHT_NORMAL);
701    
702        cairo_set_font_size (event->data.draw.cr, FONT_SIZE);
703    
704        if(cache->name) {
705          /* draw cache name */
706          cairo_text_extents (event->data.draw.cr, cache->name, &extents);
707          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing);
708          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
709          cairo_show_text (event->data.draw.cr, cache->name);
710          cairo_stroke (event->data.draw.cr);
711    
712          /* return to the left border and below text */
713          y += LINE_SKIP + FONT_SIZE;
714          x = event->data.draw.rect->x;
715        }
716    
717        if(cache->terrain) {
718          int text_y = 0, icon_y = 0;
719    
720          /* draw cache rating */
721          const char *terrain = "Terrain:";
722          icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
723          cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
724    
725          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
726            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
727          else
728            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
729    
730          /* draw "Terrain:" string */
731          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
732          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
733          cairo_show_text (event->data.draw.cr, _(terrain));
734          cairo_stroke (event->data.draw.cr);
735          x += extents.width + 2;
736    
737          /* draw terrain stars */
738          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
739    
740          x += gdk_pixbuf_get_width(icon) + FONT_SIZE/2;
741        }
742    
743        if(cache->difficulty) {
744          int text_y = 0, icon_y = 0;
745    
746          const char *difficulty = "Difficulty:";
747          icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
748          cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
749    
750          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
751            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
752          else
753            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
754    
755          /* draw "Difficulty:" string */
756          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
757          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
758          cairo_show_text (event->data.draw.cr, _(difficulty));
759          cairo_stroke (event->data.draw.cr);
760          x += extents.width + 2;
761    
762          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
763        }
764    
765        /* draw container info */
766        /* TODO ... */
767    
768    
769      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
770        printf("click %s event at %d %d\n",
771               event->data.click.down?"down":"up",
772               event->data.click.x, event->data.click.y);
773    
774        /* make the main screen jump to that cache */
775        if(!event->data.click.down) {
776          if(context->appdata->cur_cache) {
777            printf("ERROR: no current cache should be visible!\n");
778          } else {
779            gpx_t *is_in = NULL;
780    
781            if(context->appdata->search_results) {
782              printf("click while in \"search results\" view\n");
783    
784              is_in = context->appdata->search_results;
785            } else if(!context->appdata->cur_gpx) {
786              printf("click while in \"all\" view\n");
787    
788              /* we first need to figure out which gpx file this cache */
789              /* is in so we can open it first */
790              gpx_t *gpx = context->appdata->gpx;
791              while(gpx && !is_in) {
792                cache_t *cur = gpx->cache;
793                while(cur && !is_in) {
794                  if(cur == cache)
795                    is_in = gpx;
796                  cur = cur->next;
797                }
798                gpx = gpx->next;
799              }
800    
801              if(is_in)
802                gpxlist_goto_cachelist(context->appdata, is_in);
803    
804            } else {
805              printf("click while in \"cachelist\" view\n");
806    
807              /* the simple case: there already is an open gpx file and */
808              /* we just jump into the "cache" view */
809              is_in = context->appdata->cur_gpx;
810            }
811    
812            if(is_in) {
813              printf("selecting %s in %s\n",
814                     cache->id,
815                     context->appdata->search_results?
816                     context->appdata->search_results->name:
817                     context->appdata->cur_gpx->name);
818    
819              cachelist_goto_cache(context->appdata, cache);
820    
821              /* give focus to main screen (important for maemo) */
822              printf("raising main window\n");
823              gtk_window_present(GTK_WINDOW(context->appdata->window));
824            }
825          }
826        }
827      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
828        printf("removed\n");
829        context->balloon = NULL;
830      }
831    }
832    
833  static gboolean  static gboolean
834  cb_map_gps(GtkButton *button, map_context_t *context) {  on_map_button_release_event(GtkWidget *widget,
835                                GdkEventButton *event, map_context_t *context) {
836      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
837    
838    //  osm_gps_map_set_center(OSM_GPS_MAP(context->widget),    /* in "MAP_CACHE" state only one cache is visible */
839    //                     DEG2RAD(pos.lat), DEG2RAD(pos.lon));    /* and the map is in navigation mode. the balloon is */
840      /* pretty useless there */
841      if(context->press_on) {
842    
843        coord_t coo;
844        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
845    
846        pos_t pos =
847          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
848    
849        cache_t *nearest = map_closest(context, &pos);
850        if(nearest && nearest == context->press_on) {
851          pos_t cpos = gpx_cache_pos(nearest);
852    
853          float dist = gpx_pos_get_distance(pos, cpos, FALSE);
854          if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
855    
856            context->balloon = nearest;
857            osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
858                                         balloon_cb, context);
859          }
860        }
861        context->press_on = NULL;
862      } else {
863        /* save new map position */
864        gfloat lat, lon;
865        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
866        context->appdata->map.pos.lat = lat;
867        context->appdata->map.pos.lon = lon;
868      }
869    
870    return FALSE;    return FALSE;
871  }  }
872    
873  static GtkWidget  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
874  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    appdata_t *appdata = context->appdata;
875                  char *tooltip) {  
876    GtkWidget *button = gtk_button_new();    /* save map parameters */
877    gtk_button_set_image(GTK_BUTTON(button),    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
878                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));    gint zoom;
879    g_signal_connect(button, "clicked", cb, data);    g_object_get(map, "zoom", &zoom, NULL);
880  #ifndef USE_MAEMO    context->appdata->map.zoom = zoom;
881    gtk_widget_set_tooltip_text(button, tooltip);  
882      gboolean dpix;
883      g_object_get(map, "double-pixel", &dpix, NULL);
884      context->appdata->map.dpix = dpix;
885    
886      gfloat lat, lon;
887      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
888      context->appdata->map.pos.lat = lat;
889      context->appdata->map.pos.lon = lon;
890    
891      gint source;
892      g_object_get(map, "map-source", &source, NULL);
893      context->appdata->map.source = source;
894    
895    #if MAEMO_VERSION_MAJOR == 5
896      /* restore cur_view */
897      context->appdata->cur_view = context->old_view;
898  #endif  #endif
899    return button;  
900      gtk_timeout_remove(context->handler_id);
901      gps_unregister_callback(appdata->gps_state, gps_callback);
902    
903      if(context->caches_displayed) {
904        g_free(context->caches_displayed);
905        context->caches_displayed = NULL;
906      }
907    
908      printf("destroy map context\n");
909      g_free(context);
910      appdata->map.context = NULL;
911  }  }
912    
913  static gboolean map_gps_update(gpointer data) {  #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
914    /* get access to zoom buttons */
915    static void
916    on_window_realize(GtkWidget *widget, gpointer data) {
917      if (widget->window) {
918        unsigned char value = 1;
919        Atom hildon_zoom_key_atom =
920          gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
921          integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
922        Display *dpy =
923          GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
924        Window w = GDK_WINDOW_XID(widget->window);
925    
926        XChangeProperty(dpy, w, hildon_zoom_key_atom,
927                        integer_atom, 8, PropModeReplace, &value, 1);
928      }
929    }
930    #endif
931    
932    /* on maemo a window is either on top or completely invisible. this */
933    /* means that we only need to update the map window if its raised.  */
934    /* on ordinary desktops this is different and we always update */
935    
936    static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
937                             gpointer data) {
938    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
939    
940    //  gtk_widget_set_sensitive(context->map.gps, gps_fix);    printf("map got focus\n");
941    
942    return TRUE;  #ifdef USE_MAEMO
943      /* re-enable refresh of map */
944      if(!context->handler_id)
945        context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
946    #endif
947    
948      map_setup(context);
949      return FALSE;
950    }
951    
952    static gboolean on_focus_out(GtkWidget *widget, GdkEventFocus *event,
953                             gpointer data) {
954      map_context_t *context = (map_context_t*)data;
955    
956      printf("map lost focus\n");
957    
958      /* save new map position */
959      gfloat lat, lon;
960      g_object_get(widget, "latitude", &lat, "longitude", &lon, NULL);
961    
962      context->appdata->map.pos.lat = lat;
963      context->appdata->map.pos.lon = lon;
964    
965    #ifdef USE_MAEMO
966      gtk_timeout_remove(context->handler_id);
967      context->handler_id = 0;
968    #endif
969    
970      return FALSE;
971  }  }
972    
973    void map_update(appdata_t *appdata) {
974      printf("map_update\n");
975    #ifndef USE_MAEMO
976      if(appdata->map.context)
977        map_setup(appdata->map.context);
978    #endif
979    }
980    
981  void map(appdata_t *appdata) {  void map(appdata_t *appdata) {
982    map_context_t context;    map_context_t *context = NULL;
983    
984      /* if the map window already exists, just raise it */
985      if(appdata->map.context) {
986        printf("using existing map!\n");
987        gtk_window_present(GTK_WINDOW(appdata->map.context->window));
988        map_setup(appdata->map.context);
989        return;
990      }
991    
992    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),    context = appdata->map.context = g_new0(map_context_t, 1);
993                            GTK_WINDOW(appdata->window),    printf("allocated new context at %p\n", context);
                           GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,  
                           GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,  
                           NULL);  
994    
995  #ifndef USE_MAEMO    context->appdata = appdata;
996    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    context->state = MAP_NONE;
997    
998      /* cleanup old (pre 0.8.7) path if it exists */
999      char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
1000      if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
1001        printf("old file path %s exists\n", old_path);
1002        rmdir_recursive(old_path);
1003      }
1004    
1005      /* It is recommanded that all applications share these same */
1006      /* map path, so data is only cached once. The path should be: */
1007      /* ~/.osm-gps-map on standard PC     (users home) */
1008      /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
1009      /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
1010    #if !defined(USE_MAEMO)
1011      char *p = getenv("HOME");
1012      if(!p) p = "/tmp";
1013      char *path = g_strdup_printf("%s/.osm-gps-map", p);
1014    #else
1015    #if MAEMO_VERSION_MAJOR == 5
1016      char *path = g_strdup("/home/user/.osm-gps-map");
1017  #else  #else
1018    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);    char *path = g_strdup("/media/mmc2/osm-gps-map");
1019    #endif
1020  #endif  #endif
1021    
1022    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    const char *proxy = get_proxy_uri(appdata);
1023    
1024    char *path = g_strdup_printf("%s/map/", appdata->image_path);    gint source = context->appdata->map.source;
1025      if(!source) source = MAP_SOURCE;
1026    
1027    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
1028                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "map-source",               source,
1029                  "proxy-uri", get_proxy_uri(),                   "tile-cache",               path,
1030                  "tile-cache", path,                   "auto-center",              FALSE,
1031                     "record-trip-history",      FALSE,
1032                     "show-trip-history",        FALSE,
1033                     "double-pixel",             context->appdata->map.dpix,
1034                     proxy?"proxy-uri":NULL,     proxy,
1035                   NULL);                   NULL);
1036    
1037    g_free(path);    g_free(path);
1038    
1039  #if 0    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
1040    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  
1041                     G_CALLBACK(on_map_button_release_event), &context);    /* set default values if they are invalid */
1042      if(!context->appdata->map.zoom ||
1043         isnan(context->appdata->map.pos.lat) ||
1044         isnan(context->appdata->map.pos.lon)) {
1045        printf("no valid map position found\n");
1046    
1047        pos_t *refpos = get_pos(context->appdata);
1048        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
1049          printf("use refpos\n");
1050    
1051            /* use gps position if present */
1052          context->appdata->map.pos = *refpos;
1053          context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
1054        } else {
1055          printf("use zero pos\n");
1056    
1057          /* use world map otherwise */
1058          context->appdata->map.pos.lat = 0.0;
1059          context->appdata->map.pos.lon = 0.0;
1060          context->appdata->map.zoom = 1;
1061        }
1062      }
1063    
1064      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
1065                                context->appdata->map.pos.lat,
1066                                context->appdata->map.pos.lon,
1067                                context->appdata->map.zoom);
1068    
1069    #ifdef USE_MAEMO
1070      /* we don't use a stackable window here on fremantle, since */
1071      /* this leaves the main window independent from the map and */
1072      /* the user can e.g. still navigate the main menu */
1073      context->window = hildon_window_new();
1074    
1075    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
1076      g_signal_connect(G_OBJECT(context->window), "realize",
1077                       G_CALLBACK(on_window_realize), NULL);
1078    #endif // MAEMO_VERSION
1079    #else
1080      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1081  #endif  #endif
1082    
1083    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);  #ifndef USE_MAEMO
1084    /* zoom button box */    gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
1085    GtkWidget *vbox = gtk_vbox_new(FALSE,0);  #endif
   
   context.zoomin =  
     map_add_button(GTK_STOCK_ZOOM_IN, G_CALLBACK(cb_map_zoomin),  
                    &context, _("Zoom in"));  
   gtk_box_pack_start(GTK_BOX(vbox), context.zoomin, FALSE, FALSE, 0);  
   
   context.zoomout =  
     map_add_button(GTK_STOCK_ZOOM_OUT, G_CALLBACK(cb_map_zoomout),  
                    &context, _("Zoom out"));  
   gtk_box_pack_start(GTK_BOX(vbox), context.zoomout, FALSE, FALSE, 0);  
   
   context.gps =  
     map_add_button(GTK_STOCK_HOME, G_CALLBACK(cb_map_gps),  
                    &context, _("Jump to GPS position"));  
   gtk_widget_set_sensitive(context.gps, FALSE);  
   /* install handler for timed updates of the gps button */  
   context.handler_id = gtk_timeout_add(1000, map_gps_update, &context);  
   gtk_box_pack_start(GTK_BOX(vbox), context.gps, FALSE, FALSE, 0);  
1086    
1087    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
1088                       G_CALLBACK(on_focus_in), context);
1089    
1090    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    g_signal_connect(G_OBJECT(context->widget), "focus-out-event",
1091                       G_CALLBACK(on_focus_out), context);
1092    
1093    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
1094                       G_CALLBACK(on_map_button_press_event), context);
1095    
1096    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
1097                       G_CALLBACK(on_map_button_release_event), context);
1098    
1099    gtk_dialog_run(GTK_DIALOG(dialog));    /* install handler for timed updates of the gps button */
1100      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
1101    gtk_widget_destroy(dialog);    gps_register_callback(appdata->gps_state,
1102                            LATLON_CHANGED | HERR_CHANGED | TRACK_CHANGED,
1103                            gps_callback, context);
1104    
1105    #if MAEMO_VERSION_MAJOR == 5
1106      /* prevent some of the main screen things */
1107      context->old_view = appdata->cur_view;
1108      appdata->cur_view = NULL;
1109    #endif
1110    
1111      g_signal_connect(G_OBJECT(context->window), "destroy",
1112                       G_CALLBACK(on_window_destroy), context);
1113    
1114      gtk_container_add(GTK_CONTAINER(context->window), context->widget);
1115      gtk_widget_show_all(GTK_WIDGET(context->window));
1116    
1117      /* setup cache state */
1118      map_setup(context);
1119  }  }
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