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

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revision 33 by harbaum, Tue Jul 28 13:21:40 2009 UTC revision 233 by harbaum, Wed Dec 9 19:45:36 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
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    GtkWidget *widget;  #define MAP_SOURCE  OSM_GPS_MAP_SOURCE_OPENCYCLEMAP
46    GtkWidget *zoomin, *zoomout, *gps;  #define GPS_DEFAULT_ZOOM 13
   gint handler_id;  
 } map_context_t;  
47    
48  static const char *get_proxy_uri(void) {  #define PROXY_KEY  "/system/http_proxy/"
49    static char proxy_buffer[64];  
50    static const char *get_proxy_uri(appdata_t *appdata) {
51      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    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    snprintf(proxy_buffer, sizeof(proxy_buffer), "%s%s:%u",  static int dist2pixel(map_context_t *context, float km, float lat) {
116             strncmp(settings->proxy->host, "http://", 7)?"http://":"",    return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
117             settings->proxy->host, settings->proxy->port);  }
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    /* enable/disable zoom buttons as required */    pos_t *pos = &cache->pos;
178    gtk_widget_set_sensitive(context->zoomin, zoom<17);    /* check if there's also an overwritten coordinate */
179    gtk_widget_set_sensitive(context->zoomout, zoom>1);    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 gboolean  static void map_draw_wpt(GtkWidget *map, cache_t *cache, wpt_t *wpt) {
192  cb_map_zoomin(GtkButton *button, map_context_t *context) {    /* only draw wpts that don't equal the main point */
193    map_zoom(context, +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 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    /* draw geocaches and set window title */
241    static void map_setup(map_context_t *context) {
242      char *name = NULL;
243    
244      int cache_num = gpx_total_caches_global(context->appdata->gpx);
245    
246      if(context->caches_displayed && (cache_num != context->cache_list_len)) {
247        //    printf("re-alloc because %p %d/%d\n", context->caches_displayed,
248        //     cache_num, context->cache_list_len);
249        g_free(context->caches_displayed);
250        context->caches_displayed = NULL;
251        context->cache_list_len = 0;
252      }
253    
254      /* allocate buffer */
255      if(cache_num && !context->caches_displayed) {
256        context->cache_list_len = cache_num;
257        context->caches_displayed = g_new0(cache_display_t, cache_num+1);
258        printf("allocated space to handle %d map icons\n", cache_num);
259      }
260    
261      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
262        if(context->state != MAP_ALL) {
263          printf("map_setup(ALL)\n");
264    
265          /* clear any pending balloon */
266          context->balloon = NULL;
267          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
268    
269    #ifdef OSD_NAV
270          /* no navigation in this mode */
271          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
272    #endif
273    
274          /* clear all existing cache images */
275          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
276          memset(context->caches_displayed, 0,
277                 (cache_num+1) * sizeof(cache_display_t));
278    
279          /* draw all geocaches and none is semi-transparent */
280          gpx_t *gpx = context->appdata->gpx;
281          while(gpx) {
282            map_draw_gpx(context->appdata, context->caches_displayed,
283                         context->widget, gpx, NULL, FALSE);
284            gpx = gpx->next;
285          }
286    
287          {
288            int i=0;
289            while(context->caches_displayed[i].id) i++;
290            printf("number of caches actually displayed: %d\n", i);
291          }
292    
293          name = g_strdup(_("all"));
294          context->state = MAP_ALL;
295        }
296      } else if(!context->appdata->cur_cache) {
297        if(context->state != MAP_GPX) {
298          printf("map_setup(GPX)\n");
299    
300          /* clear any pending balloon */
301          context->balloon = NULL;
302          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
303    
304    #ifdef OSD_NAV
305          /* no navigation in this mode */
306          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
307    #endif
308    
309          /* clear all existing cache images */
310          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
311          memset(context->caches_displayed, 0,
312                 (cache_num+1) * sizeof(cache_display_t));
313    
314          /* draw all geocaches and all other gpx files are semi-transparent */
315          map_draw_gpx(context->appdata, context->caches_displayed,
316                       context->widget, context->appdata->cur_gpx, NULL, FALSE);
317    
318          gpx_t *gpx = context->appdata->gpx;
319          while(gpx) {
320            if(gpx != context->appdata->cur_gpx)
321              map_draw_gpx(context->appdata, context->caches_displayed,
322                           context->widget, gpx, NULL, TRUE);
323    
324            gpx = gpx->next;
325          }
326    
327          name = g_strdup(context->appdata->cur_gpx->name);
328          context->state = MAP_GPX;
329        }
330      } else {
331        cache_t *cache = context->appdata->cur_cache;
332    
333        printf("map_setup(CACHE)\n");
334    
335        /* clear any pending balloon */
336        context->balloon = NULL;
337        osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
338    
339        /* clear all existing ccahe images */
340        osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
341        memset(context->caches_displayed, 0,
342               (cache_num+1) * sizeof(cache_display_t));
343    
344        /* draw all geocaches and all but selected one are semi-transparent */
345        gpx_t *gpx = context->appdata->gpx;
346        while(gpx) {
347          map_draw_gpx(context->appdata, context->caches_displayed,
348                       context->widget, gpx, cache, FALSE);
349          gpx = gpx->next;
350        }
351    
352        name = g_strdup(cache->name);
353        context->state = MAP_CACHE;
354    
355        /* navigation in this mode! */
356        pos_t cpos = gpx_cache_pos(cache);
357    
358    #ifdef OSD_NAV
359        osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
360                                  context->appdata->imperial,
361                                  cpos.lat, cpos.lon, cache->name);
362    #else
363    #warning OSD_NAV not defined!
364    #endif
365      }
366    
367      /* also mark geomath position */
368    
369      /* remove all existing appearances of this icon first */
370      osm_gps_map_remove_image(OSM_GPS_MAP(context->widget),
371                               icon_get(ICON_MISC, 4));
372    
373      if(!isnan(context->appdata->geomath.lat) &&
374         !isnan(context->appdata->geomath.lon))  {
375    
376        osm_gps_map_add_image(OSM_GPS_MAP(context->widget),
377                              context->appdata->geomath.lat,
378                              context->appdata->geomath.lon,
379                              icon_get(ICON_MISC, 4));
380      }
381    
382      if(name) {
383        char *title = g_strdup_printf(_("Map - %s"), name);
384        g_free(name);
385    
386        gtk_window_set_title(GTK_WINDOW(context->window), title);
387    
388        g_free(title);
389      } else
390        printf("map_setup(keep)\n");
391    }
392    
393    static gboolean on_map_configure(GtkWidget *widget,
394                                     GdkEventConfigure *event,
395                                     map_context_t *context) {
396    
397      /* for some reason there's a configure event with 1/1 */
398      /* on diablo. We just ignore this! */
399    
400      printf("on_map_configure %d %d\n",
401             widget->allocation.width,
402             widget->allocation.height);
403    
404      if(!context->map_complete &&
405         (widget->allocation.width > 100) &&
406         (widget->allocation.height > 100)) {
407    
408        /* setup cache state */
409        map_setup(context);
410    
411        /* set default values if they are invalid */
412        if(!context->appdata->map.zoom ||
413           isnan(context->appdata->map.pos.lat) ||
414           isnan(context->appdata->map.pos.lon)) {
415          printf("no valid map position found\n");
416    
417          pos_t *refpos = get_pos(context->appdata);
418          if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
419            printf("use refpos\n");
420    
421            /* use gps position if present */
422            context->appdata->map.pos = *refpos;
423            context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
424          } else {
425            printf("use zero pos\n");
426    
427            /* use world map otherwise */
428            context->appdata->map.pos.lat = 0.0;
429            context->appdata->map.pos.lon = 0.0;
430            context->appdata->map.zoom = 1;
431          }
432        }
433    
434        /* jump to initial position */
435        printf("osm_gps_map_set_mapcenter(%f,%f,%d)\n",
436               context->appdata->map.pos.lat,
437               context->appdata->map.pos.lon,
438               context->appdata->map.zoom);
439    
440        osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
441                                  context->appdata->map.pos.lat,
442                                  context->appdata->map.pos.lon,
443                                  context->appdata->map.zoom);
444        context->map_complete = TRUE;
445      }
446    
447    return FALSE;    return FALSE;
448  }  }
449    
450    static void
451    map_cachelist_nearest(cache_t *cache, pos_t *pos,
452                          cache_t **result, float *distance) {
453    
454      while(cache) {
455        pos_t cpos = gpx_cache_pos(cache);
456    
457        float dist =
458          pow(cpos.lat - pos->lat, 2) +
459          pow(cpos.lon - pos->lon, 2);
460    
461        if(!(dist > *distance)) {
462          *result = cache;
463          *distance = dist;
464        }
465    
466        cache = cache->next;
467      }
468    }
469    
470    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
471      cache_t *result = NULL;
472      float distance = NAN;
473    
474      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
475        /* search all geocaches */
476        gpx_t *gpx = context->appdata->gpx;
477        while(gpx) {
478          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
479          gpx = gpx->next;
480        }
481      } else if(context->appdata->cur_gpx) {
482        map_cachelist_nearest(context->appdata->cur_gpx->cache,
483                              pos, &result, &distance);
484      } else
485        result = context->appdata->cur_gpx->cache;
486    
487      return result;
488    }
489    
490    /* translate between osm-gps-map positions and gpxview ones */
491    pos_t coord2pos(coord_t coo) {
492      pos_t pos;
493      pos.lat = rad2deg(coo.rlat);
494      pos.lon = rad2deg(coo.rlon);
495      return pos;
496    }
497    
498    #define CLICK_FUZZ (24)
499    
500  static gboolean  static gboolean
501  cb_map_zoomout(GtkButton *button, map_context_t *context) {  on_map_button_press_event(GtkWidget *widget,
502    map_zoom(context, -1);                              GdkEventButton *event, map_context_t *context) {
503    
504      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
505    
506      /* check if we actually clicked parts of the OSD */
507      if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
508        return FALSE;
509    
510      /* got a press event without release event? eat it! */
511      if(context->press_on != NULL) {
512        printf("PRESS: already\n");
513        return FALSE;
514      }
515    
516      pos_t pos =
517        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
518    
519      cache_t *nearest = map_closest(context, &pos);
520      if(nearest) {
521        pos_t cpos = gpx_cache_pos(nearest);
522    
523        float dist = gpx_pos_get_distance(pos, cpos, FALSE);
524        if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
525          context->press_on = nearest;
526      }
527    
528    return FALSE;    return FALSE;
529  }  }
530    
531    static void
532    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
533      /* convert the pixbuf into something cairo can handle */
534    
535      // Create a new ImageSurface
536      cairo_surface_t *image_surface =
537        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
538                                   gdk_pixbuf_get_width(buf),
539                                   gdk_pixbuf_get_height(buf));
540    
541      // Create the new Context for the ImageSurface
542      g_assert(image_surface);
543      cairo_t *context = cairo_create(image_surface);
544    
545      // Draw the image on the new Context
546      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
547      cairo_paint(context);
548    
549      // now draw this onto the original context
550      cairo_set_source_surface(cr, image_surface, x, y);
551    
552      cairo_paint(cr);
553    }
554    
555    #ifndef BIG_BALLOONS
556    #define ICON_SIZE  ICON_CACHE_TYPE
557    #else
558    #define ICON_SIZE  ICON_CACHE_TYPE_1_5X
559    #endif
560    
561    #ifndef BIG_BALLOONS
562    #define FONT_SIZE 14.0
563    #else
564    #define FONT_SIZE 22.0
565    #endif
566    #define LINE_SKIP  (FONT_SIZE/4)
567    
568    
569    static void
570    balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
571      printf("balloon event: ");
572    
573      map_context_t *context = (map_context_t*)data;
574      cache_t *cache = context->balloon;
575    
576      if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
577        printf("draw\n");
578    
579    #if 0
580        /* draw pink background to check clipping */
581        cairo_rectangle (event->data.draw.cr,
582                         event->data.draw.rect->x-20, event->data.draw.rect->y-20,
583                         event->data.draw.rect->w+40, event->data.draw.rect->h+40);
584        cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
585        cairo_fill_preserve (event->data.draw.cr);
586        cairo_set_line_width (event->data.draw.cr, 0);
587        cairo_stroke (event->data.draw.cr);
588    #endif
589    
590        /* leave a little border top and left */
591        gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
592    
593        /* draw the cache type icon ... */
594        GdkPixbuf *icon = icon_get(ICON_SIZE, cache->type);
595        cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
596    
597        if(cache->notes && cache->notes->override) {
598          GdkPixbuf *over = icon_get(ICON_SIZE, 11);
599          cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
600        }
601    
602        /* ... and right of it the waypoint id */
603        cairo_text_extents_t extents;
604    
605        if(cache->id) {
606          cairo_select_font_face (event->data.draw.cr, "Sans",
607                                  CAIRO_FONT_SLANT_NORMAL,
608                                  CAIRO_FONT_WEIGHT_BOLD);
609    
610    #ifndef BIG_BALLOONS
611          cairo_set_font_size (event->data.draw.cr, 20.0);
612    #else
613          cairo_set_font_size (event->data.draw.cr, 36.0);
614    #endif
615    
616          cairo_text_extents (event->data.draw.cr, cache->id, &extents);
617    
618          /* display id right of icon vertically centered */
619          x += gdk_pixbuf_get_width(icon) + 5;
620          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
621          cairo_move_to (event->data.draw.cr, x, y);
622          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
623          cairo_show_text (event->data.draw.cr, cache->id);
624          cairo_stroke (event->data.draw.cr);
625    
626          y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
627        } else
628          y += gdk_pixbuf_get_height(icon);
629    
630        /* return to the left border and below icon/text */
631        x = event->data.draw.rect->x;
632    
633        /* everything from here uses the same font */
634        cairo_select_font_face (event->data.draw.cr, "Sans",
635                                CAIRO_FONT_SLANT_NORMAL,
636                                CAIRO_FONT_WEIGHT_NORMAL);
637    
638        cairo_set_font_size (event->data.draw.cr, FONT_SIZE);
639    
640        if(cache->name) {
641          /* draw cache name */
642          cairo_text_extents (event->data.draw.cr, cache->name, &extents);
643          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing);
644          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
645          cairo_show_text (event->data.draw.cr, cache->name);
646          cairo_stroke (event->data.draw.cr);
647    
648          /* return to the left border and below text */
649          y += LINE_SKIP + FONT_SIZE;
650          x = event->data.draw.rect->x;
651        }
652    
653        if(cache->terrain) {
654          int text_y = 0, icon_y = 0;
655    
656          /* draw cache rating */
657          const char *terrain = "Terrain:";
658          icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
659          cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
660    
661          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
662            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
663          else
664            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
665    
666          /* draw "Terrain:" string */
667          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
668          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
669          cairo_show_text (event->data.draw.cr, _(terrain));
670          cairo_stroke (event->data.draw.cr);
671          x += extents.width + 2;
672    
673          /* draw terrain stars */
674          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
675    
676          x += gdk_pixbuf_get_width(icon) + FONT_SIZE/2;
677        }
678    
679        if(cache->difficulty) {
680          int text_y = 0, icon_y = 0;
681    
682          const char *difficulty = "Difficulty:";
683          icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
684          cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
685    
686          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
687            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
688          else
689            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
690    
691          /* draw "Difficulty:" string */
692          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
693          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
694          cairo_show_text (event->data.draw.cr, _(difficulty));
695          cairo_stroke (event->data.draw.cr);
696          x += extents.width + 2;
697    
698          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
699        }
700    
701        /* draw container info */
702        /* TODO ... */
703    
704    
705      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
706        printf("click %s event at %d %d\n",
707               event->data.click.down?"down":"up",
708               event->data.click.x, event->data.click.y);
709    
710        /* make the main screen jump to that cache */
711        if(!event->data.click.down) {
712          if(context->appdata->cur_cache) {
713            printf("ERROR: no current cache should be visible!\n");
714          } else {
715            gpx_t *is_in = NULL;
716    
717            if(!context->appdata->cur_gpx) {
718              printf("click while in \"all\" view\n");
719    
720              /* we first need to figure out which gpx file this cache */
721              /* is in so we can open it first */
722              gpx_t *gpx = context->appdata->gpx;
723              while(gpx && !is_in) {
724                cache_t *cur = gpx->cache;
725                while(cur && !is_in) {
726                  if(cur == cache)
727                    is_in = gpx;
728                  cur = cur->next;
729                }
730                gpx = gpx->next;
731              }
732    
733              if(is_in)
734                gpxlist_goto_cachelist(context->appdata, is_in);
735    
736            } else
737              /* the simple case: there already is an open gpx file and */
738              /* we just jump into the "cache" view */
739              is_in = context->appdata->cur_gpx;
740    
741            if(is_in) {
742              printf("selecting %s in %s\n",
743                     cache->id,
744                     context->appdata->cur_gpx->name);
745    
746              cachelist_goto_cache(context->appdata, cache);
747    
748              /* give focus to main screen (important for maemo) */
749              printf("raising main window\n");
750              gtk_window_present(GTK_WINDOW(context->appdata->window));
751            }
752          }
753        }
754      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
755        printf("removed\n");
756        context->balloon = NULL;
757      }
758    }
759    
760  static gboolean  static gboolean
761  cb_map_gps(GtkButton *button, map_context_t *context) {  on_map_button_release_event(GtkWidget *widget,
762                                GdkEventButton *event, map_context_t *context) {
763      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
764    
765    //  osm_gps_map_set_center(OSM_GPS_MAP(context->widget),    /* in "MAP_CACHE" state only one cache is visible */
766    //                     DEG2RAD(pos.lat), DEG2RAD(pos.lon));    /* and the map is in navigation mode. the balloon is */
767      /* pretty useless there */
768      if(context->press_on) {
769    
770        coord_t coo;
771        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
772    
773        pos_t pos =
774          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
775    
776        cache_t *nearest = map_closest(context, &pos);
777        if(nearest && nearest == context->press_on) {
778          pos_t cpos = gpx_cache_pos(nearest);
779    
780          float dist = gpx_pos_get_distance(pos, cpos, FALSE);
781          if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
782    
783            context->balloon = nearest;
784            osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
785                                         balloon_cb, context);
786          }
787        }
788        context->press_on = NULL;
789      } else {
790        /* save new map position */
791        gfloat lat, lon;
792        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
793        context->appdata->map.pos.lat = lat;
794        context->appdata->map.pos.lon = lon;
795      }
796    
797    return FALSE;    return FALSE;
798  }  }
799    
800  static GtkWidget  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
801  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    appdata_t *appdata = context->appdata;
802                  char *tooltip) {  
803    GtkWidget *button = gtk_button_new();    /* save map parameters */
804    gtk_button_set_image(GTK_BUTTON(button),    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
805                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));    gint zoom;
806    g_signal_connect(button, "clicked", cb, data);    g_object_get(map, "zoom", &zoom, NULL);
807  #ifndef USE_MAEMO    context->appdata->map.zoom = zoom;
808    gtk_widget_set_tooltip_text(button, tooltip);  
809      gfloat lat, lon;
810      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
811      context->appdata->map.pos.lat = lat;
812      context->appdata->map.pos.lon = lon;
813    
814      gint source;
815      g_object_get(map, "map-source", &source, NULL);
816      context->appdata->map.source = source;
817    
818    #if MAEMO_VERSION_MAJOR == 5
819      /* restore cur_view */
820      context->appdata->cur_view = context->old_view;
821  #endif  #endif
822    return button;  
823      gtk_timeout_remove(context->handler_id);
824      gps_unregister_callback(appdata, context->cb_id);
825    
826      if(context->caches_displayed) {
827        g_free(context->caches_displayed);
828        context->caches_displayed = NULL;
829      }
830    
831      printf("destroy map context\n");
832      g_free(context);
833      appdata->map.context = NULL;
834  }  }
835    
836  static gboolean map_gps_update(gpointer data) {  #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
837    /* get access to zoom buttons */
838    static void
839    on_window_realize(GtkWidget *widget, gpointer data) {
840      if (widget->window) {
841        unsigned char value = 1;
842        Atom hildon_zoom_key_atom =
843          gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
844          integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
845        Display *dpy =
846          GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
847        Window w = GDK_WINDOW_XID(widget->window);
848    
849        XChangeProperty(dpy, w, hildon_zoom_key_atom,
850                        integer_atom, 8, PropModeReplace, &value, 1);
851      }
852    }
853    #endif
854    
855    /* on maemo a window is either on top or completely invisible. this */
856    /* means that we only need to update the map window if its raised.  */
857    /* on ordinary desktops this is different and we always update */
858    
859    static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
860                             gpointer data) {
861    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
862    
863    //  gtk_widget_set_sensitive(context->map.gps, gps_fix);    printf("map got focus\n");
864    
865    return TRUE;  #ifdef USE_MAEMO
866      /* re-enable refresh of map */
867      if(!context->handler_id)
868        context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
869    #endif
870    
871      map_setup(context);
872      return FALSE;
873    }
874    
875    static gboolean on_focus_out(GtkWidget *widget, GdkEventFocus *event,
876                             gpointer data) {
877      map_context_t *context = (map_context_t*)data;
878    
879      printf("map lost focus\n");
880    
881      /* save new map position */
882      gfloat lat, lon;
883      g_object_get(widget, "latitude", &lat, "longitude", &lon, NULL);
884    
885      context->appdata->map.pos.lat = lat;
886      context->appdata->map.pos.lon = lon;
887    
888    #ifdef USE_MAEMO
889      gtk_timeout_remove(context->handler_id);
890      context->handler_id = 0;
891    #endif
892    
893      return FALSE;
894    }
895    
896    void map_update(appdata_t *appdata) {
897      printf("map_update\n");
898    #ifndef USE_MAEMO
899      if(appdata->map.context)
900        map_setup(appdata->map.context);
901    #endif
902  }  }
903    
904    /* callback called by the gps layer whenever gps state changes */
905    static void
906    gps_callback(struct gps_state *state, gpointer data) {
907      printf("map: gps callback\n");
908    }
909    
910  void map(appdata_t *appdata) {  void map(appdata_t *appdata) {
911    map_context_t context;    map_context_t *context = NULL;
912    
913    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),    /* if the map window already exists, just raise it */
914                            GTK_WINDOW(appdata->window),    if(appdata->map.context) {
915                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      printf("using existing map!\n");
916                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,      gtk_window_present(GTK_WINDOW(appdata->map.context->window));
917                            NULL);      map_setup(appdata->map.context);
918        return;
919      }
920    
921  #ifndef USE_MAEMO    context = appdata->map.context = g_new0(map_context_t, 1);
922    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    printf("allocated new context at %p\n", context);
923    
924      context->appdata = appdata;
925      context->map_complete = FALSE;
926      context->state = MAP_NONE;
927    
928      /* cleanup old (pre 0.8.7) path if it exists */
929      char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
930      if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
931        printf("old file path %s exists\n", old_path);
932        rmdir_recursive(old_path);
933      }
934    
935      /* It is recommanded that all applications share these same */
936      /* map path, so data is only cached once. The path should be: */
937      /* ~/.osm-gps-map on standard PC     (users home) */
938      /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
939      /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
940    #if !defined(USE_MAEMO)
941      char *p = getenv("HOME");
942      if(!p) p = "/tmp";
943      char *path = g_strdup_printf("%s/.osm-gps-map", p);
944  #else  #else
945    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);  #if MAEMO_VERSION_MAJOR == 5
946      char *path = g_strdup("/home/user/.osm-gps-map");
947    #else
948      char *path = g_strdup("/media/mmc2/osm-gps-map");
949    #endif
950  #endif  #endif
951    
952    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    const char *proxy = get_proxy_uri(appdata);
953    
954    char *path = g_strdup_printf("%s/map/", appdata->image_path);    gint source = context->appdata->map.source;
955      if(!source) source = MAP_SOURCE;
956    
957    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
958                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "map-source",               source,
959                  "proxy-uri", get_proxy_uri(),                   "tile-cache",               path,
960                  "tile-cache", path,                   "auto-center",              FALSE,
961                     "record-trip-history",      FALSE,
962                     "show-trip-history",        FALSE,
963                     proxy?"proxy-uri":NULL,     proxy,
964                   NULL);                   NULL);
965    
966    g_free(path);    g_free(path);
967    
968  #if 0    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
969    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  
970                     G_CALLBACK(on_map_button_release_event), &context);  #ifdef USE_MAEMO
971      /* we don't use a stackable window here on fremantle, since */
972      /* this leaves the main window independent from the map and */
973      /* the user can e.g. still navigate the main menu */
974      context->window = hildon_window_new();
975    
976    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
977      g_signal_connect(G_OBJECT(context->window), "realize",
978                       G_CALLBACK(on_window_realize), NULL);
979    #endif // MAEMO_VERSION
980    #else
981      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
982  #endif  #endif
983    
984    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);  #ifndef USE_MAEMO
985    /* zoom button box */    gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
986    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);  
987    
988    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
989                       G_CALLBACK(on_focus_in), context);
990    
991    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    g_signal_connect(G_OBJECT(context->widget), "focus-out-event",
992                       G_CALLBACK(on_focus_out), context);
993    
994    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "configure-event",
995                       G_CALLBACK(on_map_configure), context);
996    
997    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
998                       G_CALLBACK(on_map_button_press_event), context);
999    
1000    gtk_dialog_run(GTK_DIALOG(dialog));    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
1001                       G_CALLBACK(on_map_button_release_event), context);
1002    gtk_widget_destroy(dialog);  
1003      /* install handler for timed updates of the gps button */
1004      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
1005      context->cb_id = gps_register_callback(appdata, gps_callback, context);
1006    
1007    #if MAEMO_VERSION_MAJOR == 5
1008      /* prevent some of the main screen things */
1009      context->old_view = appdata->cur_view;
1010      appdata->cur_view = NULL;
1011    #endif
1012    
1013      g_signal_connect(G_OBJECT(context->window), "destroy",
1014                       G_CALLBACK(on_window_destroy), context);
1015    
1016      gtk_container_add(GTK_CONTAINER(context->window), context->widget);
1017      gtk_widget_show_all(GTK_WIDGET(context->window));
1018  }  }
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