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

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 35 by harbaum, Thu Jul 30 08:29:52 2009 UTC revision 242 by harbaum, Sun Dec 13 19:57:02 2009 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  #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
38    
39    #if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5)
40    #include <gdk/gdkx.h>
41    #include <X11/Xatom.h>
42  #endif  #endif
43    
44  typedef struct {  /* default values */
45    appdata_t *appdata;  #define MAP_SOURCE  OSM_GPS_MAP_SOURCE_OPENCYCLEMAP
46    GtkWidget *widget;  #define GPS_DEFAULT_ZOOM 13
   GtkWidget *zoomin, *zoomout, *gps;  
   gint handler_id;  
 } map_context_t;  
47    
48  #define PROXY_KEY  "/system/http_proxy/"  #define PROXY_KEY  "/system/http_proxy/"
49    
# Line 39  static const char *get_proxy_uri(appdata Line 53  static const char *get_proxy_uri(appdata
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    
# Line 60  static const char *get_proxy_uri(appdata Line 74  static const char *get_proxy_uri(appdata
74    
75        snprintf(proxy_buffer, sizeof(proxy_buffer),        snprintf(proxy_buffer, sizeof(proxy_buffer),
76                 "http://%s:%u", host, port);                 "http://%s:%u", host, port);
77          printf("map http proxy from gconf: %s\n ", proxy_buffer);
78    
79        g_free(host);        g_free(host);
80      }      }
# Line 69  static const char *get_proxy_uri(appdata Line 84  static const char *get_proxy_uri(appdata
84    return NULL;    return NULL;
85  }  }
86    
87  static void map_zoom(map_context_t *context, int step) {  static void
88    int zoom;  cb_map_gps(osd_button_t but, map_context_t *context) {
   OsmGpsMap *map = OSM_GPS_MAP(context->widget);  
   g_object_get(map, "zoom", &zoom, NULL);  
   zoom = osm_gps_map_set_zoom(map, zoom+step);  
89    
90    /* enable/disable zoom buttons as required */    if(but == OSD_GPS) {
91    gtk_widget_set_sensitive(context->zoomin, zoom<17);      printf("clicked OSD_GPS %p\n", context);
92    gtk_widget_set_sensitive(context->zoomout, zoom>1);      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 gboolean  static int dist2pixel(map_context_t *context, float km, float lat) {
116  cb_map_zoomin(GtkButton *button, map_context_t *context) {    return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
117    map_zoom(context, +1);  }
118    return FALSE;  
119    static gboolean map_gps_update(gpointer data) {
120      map_context_t *context = (map_context_t*)data;
121    
122    #ifdef USE_MAEMO
123      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
127    
128      /* 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_draw_cache(GtkWidget *map, cache_t *cache, gboolean semi) {
164      int type = semi?ICON_CACHE_TYPE_SEMI:ICON_CACHE_TYPE;
165    
166      GdkPixbuf *icon = icon_get(type, cache->type);
167      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    static void map_draw_wpt(GtkWidget *map, cache_t *cache, wpt_t *wpt) {
192      /* only draw wpts that don't equal the main point */
193      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 void map_draw_gpx(appdata_t *appdata, cache_display_t *caches,
206                             GtkWidget *map, gpx_t *gpx,
207                             cache_t *nav, gboolean semi) {
208      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          memset(context->caches_displayed, 0,
294                 (cache_num+1) * sizeof(cache_display_t));
295    
296          /* draw search results and all other gpx files are semi-transparent */
297          map_draw_gpx(context->appdata, context->caches_displayed,
298                       context->widget, context->appdata->search_results,
299                       NULL, FALSE);
300    
301          gpx_t *gpx = context->appdata->gpx;
302          while(gpx) {
303            map_draw_gpx(context->appdata, context->caches_displayed,
304                         context->widget, gpx, NULL, TRUE);
305    
306            gpx = gpx->next;
307          }
308    
309          name = g_strdup(_("Search results"));
310          context->state = MAP_SEARCH;
311        }
312      } else if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
313        if(context->state != MAP_ALL) {
314          printf("map_setup(ALL)\n");
315    
316          /* clear any pending balloon */
317          context->balloon = NULL;
318          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
319    
320    #ifdef OSD_NAV
321          /* no navigation in this mode */
322          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
323    #endif
324    
325          /* clear all existing cache images */
326          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
327          memset(context->caches_displayed, 0,
328                 (cache_num+1) * sizeof(cache_display_t));
329    
330          /* draw all geocaches and none is semi-transparent */
331          gpx_t *gpx = context->appdata->gpx;
332          while(gpx) {
333            map_draw_gpx(context->appdata, context->caches_displayed,
334                         context->widget, gpx, NULL, FALSE);
335            gpx = gpx->next;
336          }
337    
338          {
339            int i=0;
340            while(context->caches_displayed[i].id) i++;
341            printf("number of caches actually displayed: %d\n", i);
342          }
343    
344          name = g_strdup(_("all"));
345          context->state = MAP_ALL;
346        }
347      } else if(!context->appdata->cur_cache) {
348        if(context->state != MAP_GPX) {
349          printf("map_setup(GPX)\n");
350    
351          /* clear any pending balloon */
352          context->balloon = NULL;
353          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
354    
355    #ifdef OSD_NAV
356          /* no navigation in this mode */
357          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
358    #endif
359    
360          /* clear all existing cache images */
361          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
362          memset(context->caches_displayed, 0,
363                 (cache_num+1) * sizeof(cache_display_t));
364    
365          /* draw all geocaches and all other gpx files are semi-transparent */
366          map_draw_gpx(context->appdata, context->caches_displayed,
367                       context->widget, context->appdata->cur_gpx, NULL, FALSE);
368    
369          gpx_t *gpx = context->appdata->gpx;
370          while(gpx) {
371            if(gpx != context->appdata->cur_gpx)
372              map_draw_gpx(context->appdata, context->caches_displayed,
373                           context->widget, gpx, NULL, TRUE);
374    
375            gpx = gpx->next;
376          }
377    
378          name = g_strdup(context->appdata->cur_gpx->name);
379          context->state = MAP_GPX;
380        }
381      } else {
382        cache_t *cache = context->appdata->cur_cache;
383    
384        printf("map_setup(CACHE)\n");
385    
386        /* clear any pending balloon */
387        context->balloon = NULL;
388        osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
389    
390        /* clear all existing ccahe images */
391        osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
392        memset(context->caches_displayed, 0,
393               (cache_num+1) * sizeof(cache_display_t));
394    
395        /* Make sure we really work on the first copy in the list as */
396        /* only this is being used if duplicates exist */
397        cache = cache_search_first(context->appdata->gpx, cache);
398    
399        /* draw all geocaches and all but selected one are semi-transparent */
400        gpx_t *gpx = context->appdata->gpx;
401        while(gpx) {
402          map_draw_gpx(context->appdata, context->caches_displayed,
403                       context->widget, gpx, cache, FALSE);
404          gpx = gpx->next;
405        }
406    
407        name = g_strdup(cache->name);
408        context->state = MAP_CACHE;
409    
410        /* navigation in this mode! */
411        pos_t cpos = gpx_cache_pos(cache);
412    
413    #ifdef OSD_NAV
414        osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
415                                  context->appdata->imperial,
416                                  cpos.lat, cpos.lon, cache->name);
417    #else
418    #warning OSD_NAV not defined!
419    #endif
420      }
421    
422      /* also mark geomath position */
423    
424      /* remove all existing appearances of this icon first */
425      osm_gps_map_remove_image(OSM_GPS_MAP(context->widget),
426                               icon_get(ICON_MISC, 4));
427    
428      if(!isnan(context->appdata->geomath.lat) &&
429         !isnan(context->appdata->geomath.lon))  {
430    
431        osm_gps_map_add_image(OSM_GPS_MAP(context->widget),
432                              context->appdata->geomath.lat,
433                              context->appdata->geomath.lon,
434                              icon_get(ICON_MISC, 4));
435      }
436    
437      if(name) {
438        gtk_window_set_title(GTK_WINDOW(context->window), name);
439        g_free(name);
440      } else
441        printf("map_setup(keep)\n");
442    }
443    
444    static void
445    map_cachelist_nearest(cache_t *cache, pos_t *pos,
446                          cache_t **result, float *distance) {
447    
448      while(cache) {
449        pos_t cpos = gpx_cache_pos(cache);
450    
451        float dist =
452          pow(cpos.lat - pos->lat, 2) +
453          pow(cpos.lon - pos->lon, 2);
454    
455        if(!(dist > *distance)) {
456          *result = cache;
457          *distance = dist;
458        }
459    
460        cache = cache->next;
461      }
462    }
463    
464    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
465      cache_t *result = NULL;
466      float distance = NAN;
467    
468      if(context->appdata->search_results && !context->appdata->cur_cache) {
469        /* search search results */
470        map_cachelist_nearest(context->appdata->search_results->cache,
471                              pos, &result, &distance);
472      } else if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
473        /* search all geocaches */
474        gpx_t *gpx = context->appdata->gpx;
475        while(gpx) {
476          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
477          gpx = gpx->next;
478        }
479      } else if(context->appdata->cur_gpx) {
480        /* search in current gpx file */
481        map_cachelist_nearest(context->appdata->cur_gpx->cache,
482                              pos, &result, &distance);
483      } else
484        result = context->appdata->cur_cache;
485    
486      /* make sure this is the first hit */
487      result = cache_search_first(context->appdata->gpx, result);
488    
489      return result;
490    }
491    
492    /* translate between osm-gps-map positions and gpxview ones */
493    pos_t coord2pos(coord_t coo) {
494      pos_t pos;
495      pos.lat = rad2deg(coo.rlat);
496      pos.lon = rad2deg(coo.rlon);
497      return pos;
498    }
499    
500    #define CLICK_FUZZ (24)
501    
502  static gboolean  static gboolean
503  cb_map_zoomout(GtkButton *button, map_context_t *context) {  on_map_button_press_event(GtkWidget *widget,
504    map_zoom(context, -1);                              GdkEventButton *event, map_context_t *context) {
505    
506      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
507    
508      /* check if we actually clicked parts of the OSD */
509      if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
510        return FALSE;
511    
512      /* got a press event without release event? eat it! */
513      if(context->press_on != NULL) {
514        printf("PRESS: already\n");
515        return FALSE;
516      }
517    
518      pos_t pos =
519        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
520    
521      cache_t *nearest = map_closest(context, &pos);
522      if(nearest) {
523        pos_t cpos = gpx_cache_pos(nearest);
524    
525        float dist = gpx_pos_get_distance(pos, cpos, FALSE);
526        if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
527          context->press_on = nearest;
528      }
529    
530    return FALSE;    return FALSE;
531  }  }
532    
533    static void
534    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
535      /* convert the pixbuf into something cairo can handle */
536    
537      // Create a new ImageSurface
538      cairo_surface_t *image_surface =
539        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
540                                   gdk_pixbuf_get_width(buf),
541                                   gdk_pixbuf_get_height(buf));
542    
543      // Create the new Context for the ImageSurface
544      g_assert(image_surface);
545      cairo_t *context = cairo_create(image_surface);
546    
547      // Draw the image on the new Context
548      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
549      cairo_paint(context);
550    
551      // now draw this onto the original context
552      cairo_set_source_surface(cr, image_surface, x, y);
553    
554      cairo_paint(cr);
555    }
556    
557    #ifndef BIG_BALLOONS
558    #define ICON_SIZE  ICON_CACHE_TYPE
559    #else
560    #define ICON_SIZE  ICON_CACHE_TYPE_1_5X
561    #endif
562    
563    #ifndef BIG_BALLOONS
564    #define FONT_SIZE 14.0
565    #else
566    #define FONT_SIZE 22.0
567    #endif
568    #define LINE_SKIP  (FONT_SIZE/4)
569    
570    
571    static void
572    balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
573      printf("balloon event: ");
574    
575      map_context_t *context = (map_context_t*)data;
576      cache_t *cache = context->balloon;
577    
578      if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
579        printf("draw\n");
580    
581    #if 0
582        /* draw pink background to check clipping */
583        cairo_rectangle (event->data.draw.cr,
584                         event->data.draw.rect->x-20, event->data.draw.rect->y-20,
585                         event->data.draw.rect->w+40, event->data.draw.rect->h+40);
586        cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
587        cairo_fill_preserve (event->data.draw.cr);
588        cairo_set_line_width (event->data.draw.cr, 0);
589        cairo_stroke (event->data.draw.cr);
590    #endif
591    
592        /* leave a little border top and left */
593        gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
594    
595        /* draw the cache type icon ... */
596        GdkPixbuf *icon = icon_get(ICON_SIZE, cache->type);
597        cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
598    
599        if(cache->notes && cache->notes->override) {
600          GdkPixbuf *over = icon_get(ICON_SIZE, 11);
601          cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
602        }
603    
604        /* ... and right of it the waypoint id */
605        cairo_text_extents_t extents;
606    
607        if(cache->id) {
608          cairo_select_font_face (event->data.draw.cr, "Sans",
609                                  CAIRO_FONT_SLANT_NORMAL,
610                                  CAIRO_FONT_WEIGHT_BOLD);
611    
612    #ifndef BIG_BALLOONS
613          cairo_set_font_size (event->data.draw.cr, 20.0);
614    #else
615          cairo_set_font_size (event->data.draw.cr, 36.0);
616    #endif
617    
618          cairo_text_extents (event->data.draw.cr, cache->id, &extents);
619    
620          /* display id right of icon vertically centered */
621          x += gdk_pixbuf_get_width(icon) + 5;
622          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
623          cairo_move_to (event->data.draw.cr, x, y);
624          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
625          cairo_show_text (event->data.draw.cr, cache->id);
626          cairo_stroke (event->data.draw.cr);
627    
628          y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
629        } else
630          y += gdk_pixbuf_get_height(icon);
631    
632        /* return to the left border and below icon/text */
633        x = event->data.draw.rect->x;
634    
635        /* everything from here uses the same font */
636        cairo_select_font_face (event->data.draw.cr, "Sans",
637                                CAIRO_FONT_SLANT_NORMAL,
638                                CAIRO_FONT_WEIGHT_NORMAL);
639    
640        cairo_set_font_size (event->data.draw.cr, FONT_SIZE);
641    
642        if(cache->name) {
643          /* draw cache name */
644          cairo_text_extents (event->data.draw.cr, cache->name, &extents);
645          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing);
646          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
647          cairo_show_text (event->data.draw.cr, cache->name);
648          cairo_stroke (event->data.draw.cr);
649    
650          /* return to the left border and below text */
651          y += LINE_SKIP + FONT_SIZE;
652          x = event->data.draw.rect->x;
653        }
654    
655        if(cache->terrain) {
656          int text_y = 0, icon_y = 0;
657    
658          /* draw cache rating */
659          const char *terrain = "Terrain:";
660          icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
661          cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
662    
663          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
664            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
665          else
666            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
667    
668          /* draw "Terrain:" string */
669          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
670          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
671          cairo_show_text (event->data.draw.cr, _(terrain));
672          cairo_stroke (event->data.draw.cr);
673          x += extents.width + 2;
674    
675          /* draw terrain stars */
676          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
677    
678          x += gdk_pixbuf_get_width(icon) + FONT_SIZE/2;
679        }
680    
681        if(cache->difficulty) {
682          int text_y = 0, icon_y = 0;
683    
684          const char *difficulty = "Difficulty:";
685          icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
686          cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
687    
688          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
689            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
690          else
691            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
692    
693          /* draw "Difficulty:" string */
694          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
695          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
696          cairo_show_text (event->data.draw.cr, _(difficulty));
697          cairo_stroke (event->data.draw.cr);
698          x += extents.width + 2;
699    
700          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
701        }
702    
703        /* draw container info */
704        /* TODO ... */
705    
706    
707      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
708        printf("click %s event at %d %d\n",
709               event->data.click.down?"down":"up",
710               event->data.click.x, event->data.click.y);
711    
712        /* make the main screen jump to that cache */
713        if(!event->data.click.down) {
714          if(context->appdata->cur_cache) {
715            printf("ERROR: no current cache should be visible!\n");
716          } else {
717            gpx_t *is_in = NULL;
718    
719            if(!context->appdata->cur_gpx) {
720              printf("click while in \"all\" view\n");
721    
722              /* we first need to figure out which gpx file this cache */
723              /* is in so we can open it first */
724              gpx_t *gpx = context->appdata->gpx;
725              while(gpx && !is_in) {
726                cache_t *cur = gpx->cache;
727                while(cur && !is_in) {
728                  if(cur == cache)
729                    is_in = gpx;
730                  cur = cur->next;
731                }
732                gpx = gpx->next;
733              }
734    
735              if(is_in)
736                gpxlist_goto_cachelist(context->appdata, is_in);
737    
738            } else
739              /* the simple case: there already is an open gpx file and */
740              /* we just jump into the "cache" view */
741              is_in = context->appdata->cur_gpx;
742    
743            if(is_in) {
744              printf("selecting %s in %s\n",
745                     cache->id,
746                     context->appdata->cur_gpx->name);
747    
748              cachelist_goto_cache(context->appdata, cache);
749    
750              /* give focus to main screen (important for maemo) */
751              printf("raising main window\n");
752              gtk_window_present(GTK_WINDOW(context->appdata->window));
753            }
754          }
755        }
756      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
757        printf("removed\n");
758        context->balloon = NULL;
759      }
760    }
761    
762  static gboolean  static gboolean
763  cb_map_gps(GtkButton *button, map_context_t *context) {  on_map_button_release_event(GtkWidget *widget,
764    pos_t *refpos = get_pos(context->appdata);                              GdkEventButton *event, map_context_t *context) {
765    if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
766      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),  
767                                refpos->lat, refpos->lon, 14);    /* in "MAP_CACHE" state only one cache is visible */
768      /* and the map is in navigation mode. the balloon is */
769      /* pretty useless there */
770      if(context->press_on) {
771    
772        coord_t coo;
773        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
774    
775        pos_t pos =
776          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
777    
778        cache_t *nearest = map_closest(context, &pos);
779        if(nearest && nearest == context->press_on) {
780          pos_t cpos = gpx_cache_pos(nearest);
781    
782          float dist = gpx_pos_get_distance(pos, cpos, FALSE);
783          if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
784    
785            context->balloon = nearest;
786            osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
787                                         balloon_cb, context);
788          }
789        }
790        context->press_on = NULL;
791    } else {    } else {
792      /* no coordinates given: display the entire world */      /* save new map position */
793      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),      gfloat lat, lon;
794                                0.0, 0.0, 1);      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
795        context->appdata->map.pos.lat = lat;
796        context->appdata->map.pos.lon = lon;
797    }    }
798    
799    return FALSE;    return FALSE;
800  }  }
801    
802  static GtkWidget  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
803  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    appdata_t *appdata = context->appdata;
804                  char *tooltip) {  
805    GtkWidget *button = gtk_button_new();    /* save map parameters */
806    gtk_button_set_image(GTK_BUTTON(button),    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
807                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));    gint zoom;
808    g_signal_connect(button, "clicked", cb, data);    g_object_get(map, "zoom", &zoom, NULL);
809  #ifndef USE_MAEMO    context->appdata->map.zoom = zoom;
810    gtk_widget_set_tooltip_text(button, tooltip);  
811      gfloat lat, lon;
812      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
813      context->appdata->map.pos.lat = lat;
814      context->appdata->map.pos.lon = lon;
815    
816      gint source;
817      g_object_get(map, "map-source", &source, NULL);
818      context->appdata->map.source = source;
819    
820    #if MAEMO_VERSION_MAJOR == 5
821      /* restore cur_view */
822      context->appdata->cur_view = context->old_view;
823  #endif  #endif
824    return button;  
825      gtk_timeout_remove(context->handler_id);
826      gps_unregister_callback(appdata, context->cb_id);
827    
828      if(context->caches_displayed) {
829        g_free(context->caches_displayed);
830        context->caches_displayed = NULL;
831      }
832    
833      printf("destroy map context\n");
834      g_free(context);
835      appdata->map.context = NULL;
836  }  }
837    
838  static gboolean map_gps_update(gpointer data) {  #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
839    /* get access to zoom buttons */
840    static void
841    on_window_realize(GtkWidget *widget, gpointer data) {
842      if (widget->window) {
843        unsigned char value = 1;
844        Atom hildon_zoom_key_atom =
845          gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
846          integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
847        Display *dpy =
848          GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
849        Window w = GDK_WINDOW_XID(widget->window);
850    
851        XChangeProperty(dpy, w, hildon_zoom_key_atom,
852                        integer_atom, 8, PropModeReplace, &value, 1);
853      }
854    }
855    #endif
856    
857    /* on maemo a window is either on top or completely invisible. this */
858    /* means that we only need to update the map window if its raised.  */
859    /* on ordinary desktops this is different and we always update */
860    
861    static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
862                             gpointer data) {
863    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
864    
865    pos_t *refpos = get_pos(context->appdata);    printf("map got focus\n");
   gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);  
866    
867    /* get reference position and go there */  #ifdef USE_MAEMO
868    gtk_widget_set_sensitive(context->gps, ok);    /* re-enable refresh of map */
869      if(!context->handler_id)
870        context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
871    #endif
872    
873    return TRUE;    map_setup(context);
874  }    return FALSE;
875    }
876    
877  static gboolean on_map_configure(GtkWidget *widget,  static gboolean on_focus_out(GtkWidget *widget, GdkEventFocus *event,
878                                   GdkEventConfigure *event,                           gpointer data) {
879                                   map_context_t *context) {    map_context_t *context = (map_context_t*)data;
880    
881    cb_map_gps(NULL, context);    printf("map lost focus\n");
882    
883      /* save new map position */
884      gfloat lat, lon;
885      g_object_get(widget, "latitude", &lat, "longitude", &lon, NULL);
886    
887      context->appdata->map.pos.lat = lat;
888      context->appdata->map.pos.lon = lon;
889    
890    #ifdef USE_MAEMO
891      gtk_timeout_remove(context->handler_id);
892      context->handler_id = 0;
893    #endif
894    
895    return FALSE;    return FALSE;
896  }  }
897    
898    void map_update(appdata_t *appdata) {
899      printf("map_update\n");
900    #ifndef USE_MAEMO
901      if(appdata->map.context)
902        map_setup(appdata->map.context);
903    #endif
904    }
905    
906    /* callback called by the gps layer whenever gps state changes */
907    static void
908    gps_callback(struct gps_state *state, gpointer data) {
909      printf("map: gps callback\n");
910    }
911    
912  void map(appdata_t *appdata) {  void map(appdata_t *appdata) {
913    map_context_t context;    map_context_t *context = NULL;
   context.appdata = appdata;  
914    
915    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),    /* if the map window already exists, just raise it */
916                            GTK_WINDOW(appdata->window),    if(appdata->map.context) {
917                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      printf("using existing map!\n");
918                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,      gtk_window_present(GTK_WINDOW(appdata->map.context->window));
919                            NULL);      map_setup(appdata->map.context);
920        return;
921      }
922    
923  #ifndef USE_MAEMO    context = appdata->map.context = g_new0(map_context_t, 1);
924    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    printf("allocated new context at %p\n", context);
925    
926      context->appdata = appdata;
927      context->state = MAP_NONE;
928    
929      /* cleanup old (pre 0.8.7) path if it exists */
930      char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
931      if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
932        printf("old file path %s exists\n", old_path);
933        rmdir_recursive(old_path);
934      }
935    
936      /* It is recommanded that all applications share these same */
937      /* map path, so data is only cached once. The path should be: */
938      /* ~/.osm-gps-map on standard PC     (users home) */
939      /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
940      /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
941    #if !defined(USE_MAEMO)
942      char *p = getenv("HOME");
943      if(!p) p = "/tmp";
944      char *path = g_strdup_printf("%s/.osm-gps-map", p);
945  #else  #else
946    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);  #if MAEMO_VERSION_MAJOR == 5
947      char *path = g_strdup("/home/user/.osm-gps-map");
948    #else
949      char *path = g_strdup("/media/mmc2/osm-gps-map");
950    #endif
951  #endif  #endif
952    
   GtkWidget *hbox = gtk_hbox_new(FALSE, 0);  
   
   char *path = g_strdup_printf("%s/map/", appdata->image_path);  
953    const char *proxy = get_proxy_uri(appdata);    const char *proxy = get_proxy_uri(appdata);
954    
955    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    gint source = context->appdata->map.source;
956                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,    if(!source) source = MAP_SOURCE;
957                  "tile-cache", path,  
958                  proxy?"proxy-uri":NULL, proxy,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
959                     "map-source",               source,
960                     "tile-cache",               path,
961                     "auto-center",              FALSE,
962                     "record-trip-history",      FALSE,
963                     "show-trip-history",        FALSE,
964                     proxy?"proxy-uri":NULL,     proxy,
965                   NULL);                   NULL);
966    
967    g_free(path);    g_free(path);
968    
969    g_signal_connect(G_OBJECT(context.widget), "configure-event",    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
970                     G_CALLBACK(on_map_configure), &context);  
971  #if 0    /* set default values if they are invalid */
972    g_signal_connect(G_OBJECT(context.widget), "button-release-event",    if(!context->appdata->map.zoom ||
973                     G_CALLBACK(on_map_button_release_event), &context);       isnan(context->appdata->map.pos.lat) ||
974         isnan(context->appdata->map.pos.lon)) {
975        printf("no valid map position found\n");
976    
977        pos_t *refpos = get_pos(context->appdata);
978        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
979          printf("use refpos\n");
980    
981            /* use gps position if present */
982          context->appdata->map.pos = *refpos;
983          context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
984        } else {
985          printf("use zero pos\n");
986    
987          /* use world map otherwise */
988          context->appdata->map.pos.lat = 0.0;
989          context->appdata->map.pos.lon = 0.0;
990          context->appdata->map.zoom = 1;
991        }
992      }
993    
994      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
995                                context->appdata->map.pos.lat,
996                                context->appdata->map.pos.lon,
997                                context->appdata->map.zoom);
998    
999    #ifdef USE_MAEMO
1000      /* we don't use a stackable window here on fremantle, since */
1001      /* this leaves the main window independent from the map and */
1002      /* the user can e.g. still navigate the main menu */
1003      context->window = hildon_window_new();
1004    
1005    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
1006      g_signal_connect(G_OBJECT(context->window), "realize",
1007                       G_CALLBACK(on_window_realize), NULL);
1008    #endif // MAEMO_VERSION
1009    #else
1010      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1011  #endif  #endif
1012    
1013    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);  #ifndef USE_MAEMO
1014    /* zoom button box */    gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
1015    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);  
1016    
1017    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
1018                       G_CALLBACK(on_focus_in), context);
1019    
1020    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    g_signal_connect(G_OBJECT(context->widget), "focus-out-event",
1021                       G_CALLBACK(on_focus_out), context);
1022    
1023    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
1024                       G_CALLBACK(on_map_button_press_event), context);
1025    
1026    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
1027                       G_CALLBACK(on_map_button_release_event), context);
1028    
1029    gtk_dialog_run(GTK_DIALOG(dialog));    /* install handler for timed updates of the gps button */
1030      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
1031    gtk_timeout_remove(context.handler_id);    context->cb_id = gps_register_callback(appdata, gps_callback, context);
1032    
1033    #if MAEMO_VERSION_MAJOR == 5
1034      /* prevent some of the main screen things */
1035      context->old_view = appdata->cur_view;
1036      appdata->cur_view = NULL;
1037    #endif
1038    
1039      g_signal_connect(G_OBJECT(context->window), "destroy",
1040                       G_CALLBACK(on_window_destroy), context);
1041    
1042      gtk_container_add(GTK_CONTAINER(context->window), context->widget);
1043      gtk_widget_show_all(GTK_WIDGET(context->window));
1044    
1045    gtk_widget_destroy(dialog);    /* setup cache state */
1046      map_setup(context);
1047  }  }
Legend:
Removed from v.35  
changed lines
  Added in v.242