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

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revision 33 by harbaum, Tue Jul 28 13:21:40 2009 UTC revision 255 by harbaum, Tue Feb 9 19:25:36 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    snprintf(proxy_buffer, sizeof(proxy_buffer), "%s%s:%u",    return NULL;
85             strncmp(settings->proxy->host, "http://", 7)?"http://":"",  }
86             settings->proxy->host, settings->proxy->port);  
87    static void
88    cb_map_gps(osd_button_t but, map_context_t *context) {
89    
90      if(but == OSD_GPS) {
91        printf("clicked OSD_GPS %p\n", context);
92        printf("clicked OSD_GPS a %p\n", context->appdata);
93    
94        pos_t *refpos = get_pos(context->appdata);
95        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
96          gint zoom;
97          g_object_get(OSM_GPS_MAP(context->widget), "zoom", &zoom, NULL);
98          if(zoom < 10)
99            osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
100                                      refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
101          else
102            osm_gps_map_set_center(OSM_GPS_MAP(context->widget),
103                                   refpos->lat, refpos->lon);
104    
105          /* re-enable centering */
106          g_object_set(context->widget, "auto-center", TRUE, NULL);
107        } else {
108          /* no coordinates given: display the entire world */
109          osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
110                                    0.0, 0.0, 1);
111        }
112      }
113    }
114    
115    static int dist2pixel(map_context_t *context, float km, float lat) {
116      return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
117    }
118    
119    static gboolean map_gps_update(gpointer data) {
120      map_context_t *context = (map_context_t*)data;
121    
122    proxy_buffer[sizeof(proxy_buffer)-1] = 0;  #ifdef USE_MAEMO
123    printf("gconf_proxy: %s\n", proxy_buffer);    if(context->appdata->goto_disable_screensaver)
124        if(osso_display_blanking_pause(context->appdata->osso_context) != OSSO_OK)
125          fprintf(stderr, "error with display blank\n");
126  #endif  #endif
127    
128    return proxy_buffer;    /* get reference position ... */
129      pos_t *refpos = get_pos(context->appdata);
130      gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
131    
132      /* ... and enable "goto" button if it's valid */
133      if(ok != context->goto_is_enabled) {
134        osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
135                    OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context);
136        context->goto_is_enabled = ok;
137      }
138    
139      if(ok) {
140        float heading = NAN;
141        int radius = 0;
142    
143        if(context->appdata->use_gps) {
144          heading = gps_get_heading(context->appdata);
145    
146          /* get error */
147          float eph = gps_get_eph(context->appdata);
148          if(!isnan(eph))
149            radius = dist2pixel(context, eph/1000, refpos->lat);
150        }
151    
152        /* TODO: in order to save energy: only draw if state actually changed */
153    
154        g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
155        osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
156                             refpos->lat, refpos->lon, heading);
157      } else
158        osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
159    
160      return TRUE;
161  }  }
162    
163  static void map_zoom(map_context_t *context, int step) {  static void map_draw_cache(GtkWidget *map, cache_t *cache, gboolean semi) {
164    int zoom;    int type = semi?ICON_CACHE_TYPE_SEMI:ICON_CACHE_TYPE;
165    OsmGpsMap *map = OSM_GPS_MAP(context->widget);  
166    g_object_get(map, "zoom", &zoom, NULL);    GdkPixbuf *icon = icon_get(type, cache->type);
167    zoom = osm_gps_map_set_zoom(map, zoom+step);    GdkPixbuf *over = NULL;
168    
169      if(cache->mine)                   over = icon_get(type, 14);
170      else if(cache->found)             over = icon_get(type, 12);
171      else if(cache->notes) {
172        if(cache->notes->found)         over = icon_get(type, 12);
173        else if(cache->notes->override) over = icon_get(type, 11);
174        else                            over = icon_get(type, 13);
175      }
176    
177      pos_t *pos = &cache->pos;
178      /* check if there's also an overwritten coordinate */
179      if(cache->notes && cache->notes->override)
180        pos = &cache->notes->pos;
181    
182      if(!isnan(pos->lat) && !isnan(pos->lon)) {
183        osm_gps_map_add_image(OSM_GPS_MAP(map),
184                              pos->lat, pos->lon, icon);
185        if(over)
186          osm_gps_map_add_image(OSM_GPS_MAP(map),
187                                pos->lat, pos->lon, over);
188      }
189    }
190    
191    /* enable/disable zoom buttons as required */  static void map_draw_wpt(GtkWidget *map, cache_t *cache, wpt_t *wpt) {
192    gtk_widget_set_sensitive(context->zoomin, zoom<17);    /* only draw wpts that don't equal the main point */
193    gtk_widget_set_sensitive(context->zoomout, zoom>1);    if(pos_differ(&cache->pos, &wpt->pos)) {
194        if(!isnan(wpt->pos.lat) && !isnan(wpt->pos.lon))  {
195          GdkPixbuf *icon =
196            icon_get(ICON_WPT, (wpt->sym!=WPT_SYM_UNKNOWN)?
197                     wpt->sym:WPT_SYM_REFPOINT);
198    
199          osm_gps_map_add_image(OSM_GPS_MAP(map),
200                                wpt->pos.lat, wpt->pos.lon, icon);
201        }
202      }
203  }  }
204    
205  static gboolean  static void map_draw_gpx(appdata_t *appdata, cache_display_t *caches,
206  cb_map_zoomin(GtkButton *button, map_context_t *context) {                           GtkWidget *map, gpx_t *gpx,
207    map_zoom(context, +1);                           cache_t *nav, gboolean semi) {
208    return FALSE;    if(!gpx->notes_loaded) {
209        notes_load_all(appdata, gpx);
210        gpx->notes_loaded = TRUE;
211      }
212    
213      cache_t *cache = gpx->cache;
214      while(cache) {
215        /* search if we have that cache already in our list/displayed */
216        int i=0;
217        while(caches[i].id && (strcmp(caches[i].id, cache->id) != 0))
218          i++;
219    
220        if(!caches[i].id) {
221          /* if nav is given draw all other caches semitransparent. */
222          /* if nav is not given do what semi sais */
223          map_draw_cache(map, cache, nav?(cache != nav):semi);
224          caches[i].id = cache->id;
225    
226          /* also draw waypoints of nav cache */
227          if(nav && cache == nav) {
228            wpt_t *wpt = cache->wpt;
229            while(wpt) {
230              map_draw_wpt(map, cache, wpt);
231              wpt = wpt->next;
232            }
233          }
234        }
235    
236        cache = cache->next;
237      }
238    }
239    
240    static cache_t *cache_search_first(gpx_t *gpx, cache_t *cache) {
241      while(gpx) {
242        cache_t *cur = gpx->cache;
243        while(cur) {
244          /* we do a string comparision to make sure that if copies */
245          /* exist, we get the original one */
246          if(!strcmp(cache->id, cur->id))
247             return cur;
248    
249          cur = cur->next;
250        }
251        gpx = gpx->next;
252      }
253      g_assert(FALSE);
254      return NULL;
255  }  }
256    
257    /* draw geocaches and set window title */
258    static void map_setup(map_context_t *context) {
259      char *name = NULL;
260    
261      int cache_num = gpx_total_caches_global(context->appdata->gpx);
262    
263      if(context->caches_displayed && (cache_num != context->cache_list_len)) {
264        //    printf("re-alloc because %p %d/%d\n", context->caches_displayed,
265        //     cache_num, context->cache_list_len);
266        g_free(context->caches_displayed);
267        context->caches_displayed = NULL;
268        context->cache_list_len = 0;
269      }
270    
271      /* allocate buffer */
272      if(cache_num && !context->caches_displayed) {
273        context->cache_list_len = cache_num;
274        context->caches_displayed = g_new0(cache_display_t, cache_num+1);
275        printf("allocated space to handle %d map icons\n", cache_num);
276      }
277    
278      if(context->appdata->search_results && !context->appdata->cur_cache) {
279        if(context->state != MAP_SEARCH) {
280          printf("map_setup(SEARCH)\n");
281    
282          /* clear any pending balloon */
283          context->balloon = NULL;
284          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
285    
286    #ifdef OSD_NAV
287          /* no navigation in this mode */
288          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
289    #endif
290    
291          /* clear all existing cache images */
292          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
293    
294          if(context->caches_displayed) {
295            memset(context->caches_displayed, 0,
296                   (cache_num+1) * sizeof(cache_display_t));
297    
298            /* draw search results and all other gpx files are semi-transparent */
299            map_draw_gpx(context->appdata, context->caches_displayed,
300                         context->widget, context->appdata->search_results,
301                         NULL, FALSE);
302    
303            gpx_t *gpx = context->appdata->gpx;
304            while(gpx) {
305              map_draw_gpx(context->appdata, context->caches_displayed,
306                           context->widget, gpx, NULL, TRUE);
307    
308              gpx = gpx->next;
309            }
310          }
311          name = g_strdup(_("Search results"));
312          context->state = MAP_SEARCH;
313        }
314      } else if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
315        if(context->state != MAP_ALL) {
316          printf("map_setup(ALL)\n");
317    
318          /* clear any pending balloon */
319          context->balloon = NULL;
320          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
321    
322    #ifdef OSD_NAV
323          /* no navigation in this mode */
324          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
325    #endif
326    
327          /* clear all existing cache images */
328          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
329          if(context->caches_displayed) {
330            memset(context->caches_displayed, 0,
331                   (cache_num+1) * sizeof(cache_display_t));
332    
333            /* draw all geocaches and none is semi-transparent */
334            gpx_t *gpx = context->appdata->gpx;
335            while(gpx) {
336              map_draw_gpx(context->appdata, context->caches_displayed,
337                           context->widget, gpx, NULL, FALSE);
338              gpx = gpx->next;
339            }
340    
341            {
342              int i=0;
343              while(context->caches_displayed[i].id) i++;
344              printf("number of caches actually displayed: %d\n", i);
345            }
346          }
347          name = g_strdup(_("all"));
348          context->state = MAP_ALL;
349        }
350      } else if(!context->appdata->cur_cache) {
351        if(context->state != MAP_GPX) {
352          printf("map_setup(GPX)\n");
353    
354          /* clear any pending balloon */
355          context->balloon = NULL;
356          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
357    
358    #ifdef OSD_NAV
359          /* no navigation in this mode */
360          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
361    #endif
362    
363          /* clear all existing cache images */
364          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
365          if(context->caches_displayed) {
366            memset(context->caches_displayed, 0,
367                   (cache_num+1) * sizeof(cache_display_t));
368    
369            /* draw all geocaches and all other gpx files are semi-transparent */
370            map_draw_gpx(context->appdata, context->caches_displayed,
371                         context->widget, context->appdata->cur_gpx, NULL, FALSE);
372    
373            gpx_t *gpx = context->appdata->gpx;
374            while(gpx) {
375              if(gpx != context->appdata->cur_gpx)
376                map_draw_gpx(context->appdata, context->caches_displayed,
377                             context->widget, gpx, NULL, TRUE);
378    
379              gpx = gpx->next;
380            }
381          }
382    
383          name = g_strdup(context->appdata->cur_gpx->name);
384          context->state = MAP_GPX;
385        }
386      } else {
387        cache_t *cache = context->appdata->cur_cache;
388    
389        printf("map_setup(CACHE)\n");
390    
391        /* clear any pending balloon */
392        context->balloon = NULL;
393        osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
394    
395        /* clear all existing ccahe images */
396        osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
397        if(context->caches_displayed) {
398          memset(context->caches_displayed, 0,
399                 (cache_num+1) * sizeof(cache_display_t));
400    
401          /* Make sure we really work on the first copy in the list as */
402          /* only this is being used if duplicates exist */
403          cache = cache_search_first(context->appdata->gpx, cache);
404    
405          /* draw all geocaches and all but selected one are semi-transparent */
406          gpx_t *gpx = context->appdata->gpx;
407          while(gpx) {
408            map_draw_gpx(context->appdata, context->caches_displayed,
409                         context->widget, gpx, cache, FALSE);
410            gpx = gpx->next;
411          }
412        }
413    
414        name = g_strdup(cache->name);
415        context->state = MAP_CACHE;
416    
417        /* navigation in this mode! */
418        pos_t cpos = gpx_cache_pos(cache);
419    
420    #ifdef OSD_NAV
421        osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
422                                  context->appdata->imperial,
423                                  cpos.lat, cpos.lon, cache->name);
424    #else
425    #warning OSD_NAV not defined!
426    #endif
427      }
428    
429      /* also mark geomath position */
430    
431      /* remove all existing appearances of this icon first */
432      osm_gps_map_remove_image(OSM_GPS_MAP(context->widget),
433                               icon_get(ICON_MISC, 4));
434    
435      if(!isnan(context->appdata->geomath.lat) &&
436         !isnan(context->appdata->geomath.lon))  {
437    
438        osm_gps_map_add_image(OSM_GPS_MAP(context->widget),
439                              context->appdata->geomath.lat,
440                              context->appdata->geomath.lon,
441                              icon_get(ICON_MISC, 4));
442      }
443    
444      if(name) {
445        gtk_window_set_title(GTK_WINDOW(context->window), name);
446        g_free(name);
447      } else
448        printf("map_setup(keep)\n");
449    }
450    
451    static void
452    map_cachelist_nearest(cache_t *cache, pos_t *pos,
453                          cache_t **result, float *distance) {
454    
455      while(cache) {
456        pos_t cpos = gpx_cache_pos(cache);
457    
458        float dist =
459          pow(cpos.lat - pos->lat, 2) +
460          pow(cpos.lon - pos->lon, 2);
461    
462        if(!(dist > *distance)) {
463          *result = cache;
464          *distance = dist;
465        }
466    
467        cache = cache->next;
468      }
469    }
470    
471    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
472      cache_t *result = NULL;
473      float distance = NAN;
474    
475      if(context->appdata->search_results && !context->appdata->cur_cache) {
476        /* search search results */
477        map_cachelist_nearest(context->appdata->search_results->cache,
478                              pos, &result, &distance);
479      } else if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
480        /* search all geocaches */
481        gpx_t *gpx = context->appdata->gpx;
482        while(gpx) {
483          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
484          gpx = gpx->next;
485        }
486      } else if(context->appdata->cur_gpx) {
487        /* search in current gpx file */
488        map_cachelist_nearest(context->appdata->cur_gpx->cache,
489                              pos, &result, &distance);
490      } else
491        result = context->appdata->cur_cache;
492    
493      /* make sure this is the first hit */
494      if(context->caches_displayed)
495        result = cache_search_first(context->appdata->gpx, result);
496    
497      return result;
498    }
499    
500    /* translate between osm-gps-map positions and gpxview ones */
501    pos_t coord2pos(coord_t coo) {
502      pos_t pos;
503      pos.lat = rad2deg(coo.rlat);
504      pos.lon = rad2deg(coo.rlon);
505      return pos;
506    }
507    
508    #define CLICK_FUZZ (24)
509    
510  static gboolean  static gboolean
511  cb_map_zoomout(GtkButton *button, map_context_t *context) {  on_map_button_press_event(GtkWidget *widget,
512    map_zoom(context, -1);                              GdkEventButton *event, map_context_t *context) {
513    
514      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
515    
516      /* check if we actually clicked parts of the OSD */
517      if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
518        return FALSE;
519    
520      /* got a press event without release event? eat it! */
521      if(context->press_on != NULL) {
522        printf("PRESS: already\n");
523        return FALSE;
524      }
525    
526      pos_t pos =
527        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
528    
529      cache_t *nearest = map_closest(context, &pos);
530      if(nearest) {
531        pos_t cpos = gpx_cache_pos(nearest);
532    
533        float dist = gpx_pos_get_distance(pos, cpos, FALSE);
534        if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
535          context->press_on = nearest;
536      }
537    
538    return FALSE;    return FALSE;
539  }  }
540    
541    static void
542    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
543      /* convert the pixbuf into something cairo can handle */
544    
545      // Create a new ImageSurface
546      cairo_surface_t *image_surface =
547        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
548                                   gdk_pixbuf_get_width(buf),
549                                   gdk_pixbuf_get_height(buf));
550    
551      // Create the new Context for the ImageSurface
552      g_assert(image_surface);
553      cairo_t *context = cairo_create(image_surface);
554    
555      // Draw the image on the new Context
556      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
557      cairo_paint(context);
558    
559      // now draw this onto the original context
560      cairo_set_source_surface(cr, image_surface, x, y);
561    
562      cairo_paint(cr);
563    }
564    
565    #ifndef BIG_BALLOONS
566    #define ICON_SIZE  ICON_CACHE_TYPE
567    #else
568    #define ICON_SIZE  ICON_CACHE_TYPE_1_5X
569    #endif
570    
571    #ifndef BIG_BALLOONS
572    #define FONT_SIZE 14.0
573    #else
574    #define FONT_SIZE 22.0
575    #endif
576    #define LINE_SKIP  (FONT_SIZE/4)
577    
578    
579    static void
580    balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
581      printf("balloon event: ");
582    
583      map_context_t *context = (map_context_t*)data;
584      cache_t *cache = context->balloon;
585    
586      if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
587        printf("draw\n");
588    
589    #if 0
590        /* draw pink background to check clipping */
591        cairo_rectangle (event->data.draw.cr,
592                         event->data.draw.rect->x-20, event->data.draw.rect->y-20,
593                         event->data.draw.rect->w+40, event->data.draw.rect->h+40);
594        cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
595        cairo_fill_preserve (event->data.draw.cr);
596        cairo_set_line_width (event->data.draw.cr, 0);
597        cairo_stroke (event->data.draw.cr);
598    #endif
599    
600        /* leave a little border top and left */
601        gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
602    
603        /* draw the cache type icon ... */
604        GdkPixbuf *icon = icon_get(ICON_SIZE, cache->type);
605        cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
606    
607        if(cache->notes && cache->notes->override) {
608          GdkPixbuf *over = icon_get(ICON_SIZE, 11);
609          cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
610        }
611    
612        /* ... and right of it the waypoint id */
613        cairo_text_extents_t extents;
614    
615        if(cache->id) {
616          cairo_select_font_face (event->data.draw.cr, "Sans",
617                                  CAIRO_FONT_SLANT_NORMAL,
618                                  CAIRO_FONT_WEIGHT_BOLD);
619    
620    #ifndef BIG_BALLOONS
621          cairo_set_font_size (event->data.draw.cr, 20.0);
622    #else
623          cairo_set_font_size (event->data.draw.cr, 36.0);
624    #endif
625    
626          cairo_text_extents (event->data.draw.cr, cache->id, &extents);
627    
628          /* display id right of icon vertically centered */
629          x += gdk_pixbuf_get_width(icon) + 5;
630          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
631          cairo_move_to (event->data.draw.cr, x, y);
632          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
633          cairo_show_text (event->data.draw.cr, cache->id);
634          cairo_stroke (event->data.draw.cr);
635    
636          y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
637        } else
638          y += gdk_pixbuf_get_height(icon);
639    
640        /* return to the left border and below icon/text */
641        x = event->data.draw.rect->x;
642    
643        /* everything from here uses the same font */
644        cairo_select_font_face (event->data.draw.cr, "Sans",
645                                CAIRO_FONT_SLANT_NORMAL,
646                                CAIRO_FONT_WEIGHT_NORMAL);
647    
648        cairo_set_font_size (event->data.draw.cr, FONT_SIZE);
649    
650        if(cache->name) {
651          /* draw cache name */
652          cairo_text_extents (event->data.draw.cr, cache->name, &extents);
653          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing);
654          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
655          cairo_show_text (event->data.draw.cr, cache->name);
656          cairo_stroke (event->data.draw.cr);
657    
658          /* return to the left border and below text */
659          y += LINE_SKIP + FONT_SIZE;
660          x = event->data.draw.rect->x;
661        }
662    
663        if(cache->terrain) {
664          int text_y = 0, icon_y = 0;
665    
666          /* draw cache rating */
667          const char *terrain = "Terrain:";
668          icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
669          cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
670    
671          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
672            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
673          else
674            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
675    
676          /* draw "Terrain:" string */
677          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
678          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
679          cairo_show_text (event->data.draw.cr, _(terrain));
680          cairo_stroke (event->data.draw.cr);
681          x += extents.width + 2;
682    
683          /* draw terrain stars */
684          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
685    
686          x += gdk_pixbuf_get_width(icon) + FONT_SIZE/2;
687        }
688    
689        if(cache->difficulty) {
690          int text_y = 0, icon_y = 0;
691    
692          const char *difficulty = "Difficulty:";
693          icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
694          cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
695    
696          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
697            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
698          else
699            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
700    
701          /* draw "Difficulty:" string */
702          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
703          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
704          cairo_show_text (event->data.draw.cr, _(difficulty));
705          cairo_stroke (event->data.draw.cr);
706          x += extents.width + 2;
707    
708          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
709        }
710    
711        /* draw container info */
712        /* TODO ... */
713    
714    
715      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
716        printf("click %s event at %d %d\n",
717               event->data.click.down?"down":"up",
718               event->data.click.x, event->data.click.y);
719    
720        /* make the main screen jump to that cache */
721        if(!event->data.click.down) {
722          if(context->appdata->cur_cache) {
723            printf("ERROR: no current cache should be visible!\n");
724          } else {
725            gpx_t *is_in = NULL;
726    
727            if(context->appdata->search_results) {
728              printf("click while in \"search results\" view\n");
729    
730              is_in = context->appdata->search_results;
731            } else if(!context->appdata->cur_gpx) {
732              printf("click while in \"all\" view\n");
733    
734              /* we first need to figure out which gpx file this cache */
735              /* is in so we can open it first */
736              gpx_t *gpx = context->appdata->gpx;
737              while(gpx && !is_in) {
738                cache_t *cur = gpx->cache;
739                while(cur && !is_in) {
740                  if(cur == cache)
741                    is_in = gpx;
742                  cur = cur->next;
743                }
744                gpx = gpx->next;
745              }
746    
747              if(is_in)
748                gpxlist_goto_cachelist(context->appdata, is_in);
749    
750            } else {
751              printf("click while in \"cachelist\" view\n");
752    
753              /* the simple case: there already is an open gpx file and */
754              /* we just jump into the "cache" view */
755              is_in = context->appdata->cur_gpx;
756            }
757    
758            if(is_in) {
759              printf("selecting %s in %s\n",
760                     cache->id,
761                     context->appdata->search_results?
762                     context->appdata->search_results->name:
763                     context->appdata->cur_gpx->name);
764    
765              cachelist_goto_cache(context->appdata, cache);
766    
767              /* give focus to main screen (important for maemo) */
768              printf("raising main window\n");
769              gtk_window_present(GTK_WINDOW(context->appdata->window));
770            }
771          }
772        }
773      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
774        printf("removed\n");
775        context->balloon = NULL;
776      }
777    }
778    
779  static gboolean  static gboolean
780  cb_map_gps(GtkButton *button, map_context_t *context) {  on_map_button_release_event(GtkWidget *widget,
781                                GdkEventButton *event, map_context_t *context) {
782      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
783    
784    //  osm_gps_map_set_center(OSM_GPS_MAP(context->widget),    /* in "MAP_CACHE" state only one cache is visible */
785    //                     DEG2RAD(pos.lat), DEG2RAD(pos.lon));    /* and the map is in navigation mode. the balloon is */
786      /* pretty useless there */
787      if(context->press_on) {
788    
789        coord_t coo;
790        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
791    
792        pos_t pos =
793          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
794    
795        cache_t *nearest = map_closest(context, &pos);
796        if(nearest && nearest == context->press_on) {
797          pos_t cpos = gpx_cache_pos(nearest);
798    
799          float dist = gpx_pos_get_distance(pos, cpos, FALSE);
800          if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
801    
802            context->balloon = nearest;
803            osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
804                                         balloon_cb, context);
805          }
806        }
807        context->press_on = NULL;
808      } else {
809        /* save new map position */
810        gfloat lat, lon;
811        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
812        context->appdata->map.pos.lat = lat;
813        context->appdata->map.pos.lon = lon;
814      }
815    
816    return FALSE;    return FALSE;
817  }  }
818    
819  static GtkWidget  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
820  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    appdata_t *appdata = context->appdata;
821                  char *tooltip) {  
822    GtkWidget *button = gtk_button_new();    /* save map parameters */
823    gtk_button_set_image(GTK_BUTTON(button),    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
824                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));    gint zoom;
825    g_signal_connect(button, "clicked", cb, data);    g_object_get(map, "zoom", &zoom, NULL);
826  #ifndef USE_MAEMO    context->appdata->map.zoom = zoom;
827    gtk_widget_set_tooltip_text(button, tooltip);  
828      gfloat lat, lon;
829      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
830      context->appdata->map.pos.lat = lat;
831      context->appdata->map.pos.lon = lon;
832    
833      gint source;
834      g_object_get(map, "map-source", &source, NULL);
835      context->appdata->map.source = source;
836    
837    #if MAEMO_VERSION_MAJOR == 5
838      /* restore cur_view */
839      context->appdata->cur_view = context->old_view;
840  #endif  #endif
841    return button;  
842      gtk_timeout_remove(context->handler_id);
843      gps_unregister_callback(appdata, context->cb_id);
844    
845      if(context->caches_displayed) {
846        g_free(context->caches_displayed);
847        context->caches_displayed = NULL;
848      }
849    
850      printf("destroy map context\n");
851      g_free(context);
852      appdata->map.context = NULL;
853  }  }
854    
855  static gboolean map_gps_update(gpointer data) {  #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
856    /* get access to zoom buttons */
857    static void
858    on_window_realize(GtkWidget *widget, gpointer data) {
859      if (widget->window) {
860        unsigned char value = 1;
861        Atom hildon_zoom_key_atom =
862          gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
863          integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
864        Display *dpy =
865          GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
866        Window w = GDK_WINDOW_XID(widget->window);
867    
868        XChangeProperty(dpy, w, hildon_zoom_key_atom,
869                        integer_atom, 8, PropModeReplace, &value, 1);
870      }
871    }
872    #endif
873    
874    /* on maemo a window is either on top or completely invisible. this */
875    /* means that we only need to update the map window if its raised.  */
876    /* on ordinary desktops this is different and we always update */
877    
878    static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
879                             gpointer data) {
880    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
881    
882    //  gtk_widget_set_sensitive(context->map.gps, gps_fix);    printf("map got focus\n");
883    
884    return TRUE;  #ifdef USE_MAEMO
885      /* re-enable refresh of map */
886      if(!context->handler_id)
887        context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
888    #endif
889    
890      map_setup(context);
891      return FALSE;
892    }
893    
894    static gboolean on_focus_out(GtkWidget *widget, GdkEventFocus *event,
895                             gpointer data) {
896      map_context_t *context = (map_context_t*)data;
897    
898      printf("map lost focus\n");
899    
900      /* save new map position */
901      gfloat lat, lon;
902      g_object_get(widget, "latitude", &lat, "longitude", &lon, NULL);
903    
904      context->appdata->map.pos.lat = lat;
905      context->appdata->map.pos.lon = lon;
906    
907    #ifdef USE_MAEMO
908      gtk_timeout_remove(context->handler_id);
909      context->handler_id = 0;
910    #endif
911    
912      return FALSE;
913  }  }
914    
915    void map_update(appdata_t *appdata) {
916      printf("map_update\n");
917    #ifndef USE_MAEMO
918      if(appdata->map.context)
919        map_setup(appdata->map.context);
920    #endif
921    }
922    
923    /* callback called by the gps layer whenever gps state changes */
924    static void
925    gps_callback(struct gps_state *state, gpointer data) {
926      printf("map: gps callback\n");
927    }
928    
929  void map(appdata_t *appdata) {  void map(appdata_t *appdata) {
930    map_context_t context;    map_context_t *context = NULL;
931    
932    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),    /* if the map window already exists, just raise it */
933                            GTK_WINDOW(appdata->window),    if(appdata->map.context) {
934                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      printf("using existing map!\n");
935                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,      gtk_window_present(GTK_WINDOW(appdata->map.context->window));
936                            NULL);      map_setup(appdata->map.context);
937        return;
938      }
939    
940  #ifndef USE_MAEMO    context = appdata->map.context = g_new0(map_context_t, 1);
941    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    printf("allocated new context at %p\n", context);
942    
943      context->appdata = appdata;
944      context->state = MAP_NONE;
945    
946      /* cleanup old (pre 0.8.7) path if it exists */
947      char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
948      if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
949        printf("old file path %s exists\n", old_path);
950        rmdir_recursive(old_path);
951      }
952    
953      /* It is recommanded that all applications share these same */
954      /* map path, so data is only cached once. The path should be: */
955      /* ~/.osm-gps-map on standard PC     (users home) */
956      /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
957      /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
958    #if !defined(USE_MAEMO)
959      char *p = getenv("HOME");
960      if(!p) p = "/tmp";
961      char *path = g_strdup_printf("%s/.osm-gps-map", p);
962    #else
963    #if MAEMO_VERSION_MAJOR == 5
964      char *path = g_strdup("/home/user/.osm-gps-map");
965  #else  #else
966    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);    char *path = g_strdup("/media/mmc2/osm-gps-map");
967    #endif
968  #endif  #endif
969    
970    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    const char *proxy = get_proxy_uri(appdata);
971    
972    char *path = g_strdup_printf("%s/map/", appdata->image_path);    gint source = context->appdata->map.source;
973      if(!source) source = MAP_SOURCE;
974    
975    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
976                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "map-source",               source,
977                  "proxy-uri", get_proxy_uri(),                   "tile-cache",               path,
978                  "tile-cache", path,                   "auto-center",              FALSE,
979                     "record-trip-history",      FALSE,
980                     "show-trip-history",        FALSE,
981                     proxy?"proxy-uri":NULL,     proxy,
982                   NULL);                   NULL);
983    
984    g_free(path);    g_free(path);
985    
986  #if 0    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
987    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  
988                     G_CALLBACK(on_map_button_release_event), &context);    /* set default values if they are invalid */
989      if(!context->appdata->map.zoom ||
990         isnan(context->appdata->map.pos.lat) ||
991         isnan(context->appdata->map.pos.lon)) {
992        printf("no valid map position found\n");
993    
994        pos_t *refpos = get_pos(context->appdata);
995        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
996          printf("use refpos\n");
997    
998            /* use gps position if present */
999          context->appdata->map.pos = *refpos;
1000          context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
1001        } else {
1002          printf("use zero pos\n");
1003    
1004          /* use world map otherwise */
1005          context->appdata->map.pos.lat = 0.0;
1006          context->appdata->map.pos.lon = 0.0;
1007          context->appdata->map.zoom = 1;
1008        }
1009      }
1010    
1011      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
1012                                context->appdata->map.pos.lat,
1013                                context->appdata->map.pos.lon,
1014                                context->appdata->map.zoom);
1015    
1016    #ifdef USE_MAEMO
1017      /* we don't use a stackable window here on fremantle, since */
1018      /* this leaves the main window independent from the map and */
1019      /* the user can e.g. still navigate the main menu */
1020      context->window = hildon_window_new();
1021    
1022    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
1023      g_signal_connect(G_OBJECT(context->window), "realize",
1024                       G_CALLBACK(on_window_realize), NULL);
1025    #endif // MAEMO_VERSION
1026    #else
1027      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1028  #endif  #endif
1029    
1030    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);  #ifndef USE_MAEMO
1031    /* zoom button box */    gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
1032    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);  
1033    
1034    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
1035                       G_CALLBACK(on_focus_in), context);
1036    
1037    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    g_signal_connect(G_OBJECT(context->widget), "focus-out-event",
1038                       G_CALLBACK(on_focus_out), context);
1039    
1040    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
1041                       G_CALLBACK(on_map_button_press_event), context);
1042    
1043    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
1044                       G_CALLBACK(on_map_button_release_event), context);
1045    
1046    gtk_dialog_run(GTK_DIALOG(dialog));    /* install handler for timed updates of the gps button */
1047      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
1048    gtk_widget_destroy(dialog);    context->cb_id = gps_register_callback(appdata, gps_callback, context);
1049    
1050    #if MAEMO_VERSION_MAJOR == 5
1051      /* prevent some of the main screen things */
1052      context->old_view = appdata->cur_view;
1053      appdata->cur_view = NULL;
1054    #endif
1055    
1056      g_signal_connect(G_OBJECT(context->window), "destroy",
1057                       G_CALLBACK(on_window_destroy), context);
1058    
1059      gtk_container_add(GTK_CONTAINER(context->window), context->widget);
1060      gtk_widget_show_all(GTK_WIDGET(context->window));
1061    
1062      /* setup cache state */
1063      map_setup(context);
1064  }  }
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