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

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revision 35 by harbaum, Thu Jul 30 08:29:52 2009 UTC revision 226 by harbaum, Wed Dec 2 20:05:52 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  #endif
38    
39  typedef struct {  #if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5)
40    appdata_t *appdata;  #include <gdk/gdkx.h>
41    GtkWidget *widget;  #include <X11/Xatom.h>
42    GtkWidget *zoomin, *zoomout, *gps;  #endif
43    gint handler_id;  
44  } map_context_t;  /* 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/"  #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    
119    static gboolean map_gps_update(gpointer data) {
120      map_context_t *context = (map_context_t*)data;
121    
122      /* get reference position ... */
123      pos_t *refpos = get_pos(context->appdata);
124      gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
125    
126      /* ... and enable "goto" button if it's valid */
127      if(ok != context->goto_is_enabled) {
128        osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
129                    OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context);
130        context->goto_is_enabled = ok;
131      }
132    
133      if(ok) {
134        float heading = NAN;
135        int radius = 0;
136    
137        if(context->appdata->use_gps) {
138          heading = gps_get_heading(context->appdata);
139    
140          /* get error */
141          float eph = gps_get_eph(context->appdata);
142          if(!isnan(eph))
143            radius = dist2pixel(context, eph/1000, refpos->lat);
144        }
145    
146        /* TODO: in order to save energy: only draw if state actually changed */
147    
148        g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
149        osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
150                             refpos->lat, refpos->lon, heading);
151      } else
152        osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
153    
154      return TRUE;
155    }
156    
157    static void map_draw_cache(GtkWidget *map, cache_t *cache, gboolean semi) {
158      int type = semi?ICON_CACHE_TYPE_SEMI:ICON_CACHE_TYPE;
159    
160      GdkPixbuf *icon = icon_get(type, cache->type);
161      GdkPixbuf *over = NULL;
162    
163      if(cache->mine)                   over = icon_get(type, 14);
164      else if(cache->found)             over = icon_get(type, 12);
165      else if(cache->notes) {
166        if(cache->notes->found)         over = icon_get(type, 12);
167        else if(cache->notes->override) over = icon_get(type, 11);
168        else                            over = icon_get(type, 13);
169      }
170    
171      pos_t *pos = &cache->pos;
172      /* check if there's also an overwritten coordinate */
173      if(cache->notes && cache->notes->override)
174        pos = &cache->notes->pos;
175    
176      if(!isnan(pos->lat) && !isnan(pos->lon)) {
177        osm_gps_map_add_image(OSM_GPS_MAP(map),
178                              pos->lat, pos->lon, icon);
179        if(over)
180          osm_gps_map_add_image(OSM_GPS_MAP(map),
181                                pos->lat, pos->lon, over);
182      }
183    }
184    
185    static void map_draw_wpt(GtkWidget *map, cache_t *cache, wpt_t *wpt) {
186      /* only draw wpts that don't equal the main point */
187      if(pos_differ(&cache->pos, &wpt->pos)) {
188        if(!isnan(wpt->pos.lat) && !isnan(wpt->pos.lon))  {
189          GdkPixbuf *icon =
190            icon_get(ICON_WPT, (wpt->sym!=WPT_SYM_UNKNOWN)?
191                     wpt->sym:WPT_SYM_REFPOINT);
192    
193          osm_gps_map_add_image(OSM_GPS_MAP(map),
194                                wpt->pos.lat, wpt->pos.lon, icon);
195        }
196      }
197    }
198    
199    static void map_draw_gpx(appdata_t *appdata, cache_display_t *caches,
200                             GtkWidget *map, gpx_t *gpx,
201                             cache_t *nav, gboolean semi) {
202      if(!gpx->notes_loaded) {
203        notes_load_all(appdata, gpx);
204        gpx->notes_loaded = TRUE;
205      }
206    
207      cache_t *cache = gpx->cache;
208      while(cache) {
209        /* search if we have that cache already in our list/displayed */
210        int i=0;
211        while(caches[i].id && (strcmp(caches[i].id, cache->id) != 0))
212          i++;
213    
214        if(!caches[i].id) {
215          /* if nav is given draw all other caches semitransparent. */
216          /* if nav is not given do what semi sais */
217          map_draw_cache(map, cache, nav?(cache != nav):semi);
218          caches[i].id = cache->id;
219    
220          /* also draw waypoints of nav cache */
221          if(nav && cache == nav) {
222            wpt_t *wpt = cache->wpt;
223            while(wpt) {
224              map_draw_wpt(map, cache, wpt);
225              wpt = wpt->next;
226            }
227          }
228        }
229    
230        cache = cache->next;
231      }
232    }
233    
234    /* draw geocaches and set window title */
235    static void map_setup(map_context_t *context) {
236      char *name = NULL;
237    
238      int cache_num = gpx_total_caches_global(context->appdata->gpx);
239    
240      if(context->caches_displayed && (cache_num != context->cache_list_len)) {
241        //    printf("re-alloc because %p %d/%d\n", context->caches_displayed,
242        //     cache_num, context->cache_list_len);
243        g_free(context->caches_displayed);
244        context->caches_displayed = NULL;
245        context->cache_list_len = 0;
246      }
247    
248      /* allocate buffer */
249      if(cache_num && !context->caches_displayed) {
250        context->cache_list_len = cache_num;
251        context->caches_displayed = g_new0(cache_display_t, cache_num+1);
252        printf("allocated space to handle %d map icons\n", cache_num);
253      }
254    
255      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
256        if(context->state != MAP_ALL) {
257          printf("map_setup(ALL)\n");
258    
259          /* clear any pending balloon */
260          context->balloon = NULL;
261          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
262    
263    #ifdef OSD_NAV
264          /* no navigation in this mode */
265          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
266    #endif
267    
268          /* clear all existing cache images */
269          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
270          memset(context->caches_displayed, 0,
271                 (cache_num+1) * sizeof(cache_display_t));
272    
273          /* draw all geocaches and none is semi-transparent */
274          gpx_t *gpx = context->appdata->gpx;
275          while(gpx) {
276            map_draw_gpx(context->appdata, context->caches_displayed,
277                         context->widget, gpx, NULL, FALSE);
278            gpx = gpx->next;
279          }
280    
281          {
282            int i=0;
283            while(context->caches_displayed[i].id) i++;
284            printf("number of caches actually displayed: %d\n", i);
285          }
286    
287          name = g_strdup(_("all"));
288          context->state = MAP_ALL;
289        }
290      } else if(!context->appdata->cur_cache) {
291        if(context->state != MAP_GPX) {
292          printf("map_setup(GPX)\n");
293    
294          /* clear any pending balloon */
295          context->balloon = NULL;
296          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
297    
298    #ifdef OSD_NAV
299          /* no navigation in this mode */
300          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
301    #endif
302    
303          /* clear all existing cache images */
304          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
305          memset(context->caches_displayed, 0,
306                 (cache_num+1) * sizeof(cache_display_t));
307    
308          /* draw all geocaches and all other gpx files are semi-transparent */
309          map_draw_gpx(context->appdata, context->caches_displayed,
310                       context->widget, context->appdata->cur_gpx, NULL, FALSE);
311    
312          gpx_t *gpx = context->appdata->gpx;
313          while(gpx) {
314            if(gpx != context->appdata->cur_gpx)
315              map_draw_gpx(context->appdata, context->caches_displayed,
316                           context->widget, gpx, NULL, TRUE);
317    
318            gpx = gpx->next;
319          }
320    
321          name = g_strdup(context->appdata->cur_gpx->name);
322          context->state = MAP_GPX;
323        }
324      } else {
325        cache_t *cache = context->appdata->cur_cache;
326    
327        printf("map_setup(CACHE)\n");
328    
329        /* clear any pending balloon */
330        context->balloon = NULL;
331        osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
332    
333        /* clear all existing ccahe images */
334        osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
335        memset(context->caches_displayed, 0,
336               (cache_num+1) * sizeof(cache_display_t));
337    
338        /* draw all geocaches and all but selected one are semi-transparent */
339        gpx_t *gpx = context->appdata->gpx;
340        while(gpx) {
341          map_draw_gpx(context->appdata, context->caches_displayed,
342                       context->widget, gpx, cache, FALSE);
343          gpx = gpx->next;
344        }
345    
346        name = g_strdup(cache->name);
347        context->state = MAP_CACHE;
348    
349        /* navigation in this mode! */
350        pos_t cpos = gpx_cache_pos(cache);
351    
352    #ifdef OSD_NAV
353        osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
354                                  context->appdata->imperial,
355                                  cpos.lat, cpos.lon, cache->name);
356    #else
357    #warning OSD_NAV not defined!
358    #endif
359      }
360    
361      /* also mark geomath position */
362    
363      /* remove all existing appearances of this icon first */
364      osm_gps_map_remove_image(OSM_GPS_MAP(context->widget),
365                               icon_get(ICON_MISC, 6));
366    
367      if(!isnan(context->appdata->geomath.lat) &&
368         !isnan(context->appdata->geomath.lon))  {
369    
370        osm_gps_map_add_image(OSM_GPS_MAP(context->widget),
371                              context->appdata->geomath.lat,
372                              context->appdata->geomath.lon,
373                              icon_get(ICON_MISC, 6));
374      }
375    
376      if(name) {
377        char *title = g_strdup_printf(_("Map - %s"), name);
378        g_free(name);
379    
380        gtk_window_set_title(GTK_WINDOW(context->window), title);
381    
382        g_free(title);
383      } else
384        printf("map_setup(keep)\n");
385    }
386    
387    static gboolean on_map_configure(GtkWidget *widget,
388                                     GdkEventConfigure *event,
389                                     map_context_t *context) {
390    
391      /* for some reason there's a configure event with 1/1 */
392      /* on diablo. We just ignore this! */
393    
394      printf("on_map_configure %d %d\n",
395             widget->allocation.width,
396             widget->allocation.height);
397    
398      if(!context->map_complete &&
399         (widget->allocation.width > 100) &&
400         (widget->allocation.height > 100)) {
401    
402        /* setup cache state */
403        map_setup(context);
404    
405        /* set default values if they are invalid */
406        if(!context->appdata->map.zoom ||
407           isnan(context->appdata->map.pos.lat) ||
408           isnan(context->appdata->map.pos.lon)) {
409          printf("no valid map position found\n");
410    
411          pos_t *refpos = get_pos(context->appdata);
412          if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
413            printf("use refpos\n");
414    
415            /* use gps position if present */
416            context->appdata->map.pos = *refpos;
417            context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
418          } else {
419            printf("use zero pos\n");
420    
421            /* use world map otherwise */
422            context->appdata->map.pos.lat = 0.0;
423            context->appdata->map.pos.lon = 0.0;
424            context->appdata->map.zoom = 1;
425          }
426        }
427    
428        /* jump to initial position */
429        printf("osm_gps_map_set_mapcenter(%f,%f,%d)\n",
430               context->appdata->map.pos.lat,
431               context->appdata->map.pos.lon,
432               context->appdata->map.zoom);
433    
434        osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
435                                  context->appdata->map.pos.lat,
436                                  context->appdata->map.pos.lon,
437                                  context->appdata->map.zoom);
438        context->map_complete = TRUE;
439      }
440    
441    return FALSE;    return FALSE;
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->cur_gpx && !context->appdata->cur_cache) {
469        /* search all geocaches */
470        gpx_t *gpx = context->appdata->gpx;
471        while(gpx) {
472          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
473          gpx = gpx->next;
474        }
475      } else if(context->appdata->cur_gpx) {
476        map_cachelist_nearest(context->appdata->cur_gpx->cache,
477                              pos, &result, &distance);
478      } else
479        result = context->appdata->cur_gpx->cache;
480    
481      return result;
482    }
483    
484    /* translate between osm-gps-map positions and gpxview ones */
485    pos_t coord2pos(coord_t coo) {
486      pos_t pos;
487      pos.lat = rad2deg(coo.rlat);
488      pos.lon = rad2deg(coo.rlon);
489      return pos;
490    }
491    
492    #define CLICK_FUZZ (24)
493    
494  static gboolean  static gboolean
495  cb_map_zoomout(GtkButton *button, map_context_t *context) {  on_map_button_press_event(GtkWidget *widget,
496    map_zoom(context, -1);                              GdkEventButton *event, map_context_t *context) {
497    
498      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
499    
500      /* check if we actually clicked parts of the OSD */
501      if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
502        return FALSE;
503    
504      /* got a press event without release event? eat it! */
505      if(context->press_on != NULL) {
506        printf("PRESS: already\n");
507        return FALSE;
508      }
509    
510      pos_t pos =
511        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
512    
513      cache_t *nearest = map_closest(context, &pos);
514      if(nearest) {
515        pos_t cpos = gpx_cache_pos(nearest);
516    
517        float dist = gpx_pos_get_distance(pos, cpos, FALSE);
518        if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
519          context->press_on = nearest;
520      }
521    
522    return FALSE;    return FALSE;
523  }  }
524    
525    static void
526    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
527      /* convert the pixbuf into something cairo can handle */
528    
529      // Create a new ImageSurface
530      cairo_surface_t *image_surface =
531        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
532                                   gdk_pixbuf_get_width(buf),
533                                   gdk_pixbuf_get_height(buf));
534    
535      // Create the new Context for the ImageSurface
536      g_assert(image_surface);
537      cairo_t *context = cairo_create(image_surface);
538    
539      // Draw the image on the new Context
540      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
541      cairo_paint(context);
542    
543      // now draw this onto the original context
544      cairo_set_source_surface(cr, image_surface, x, y);
545    
546      cairo_paint(cr);
547    }
548    
549    #ifndef BIG_BALLOONS
550    #define ICON_SIZE  ICON_CACHE_TYPE
551    #else
552    #define ICON_SIZE  ICON_CACHE_TYPE_1_5X
553    #endif
554    
555    #ifndef BIG_BALLOONS
556    #define FONT_SIZE 14.0
557    #else
558    #define FONT_SIZE 22.0
559    #endif
560    #define LINE_SKIP  (FONT_SIZE/4)
561    
562    
563    static void
564    balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
565      printf("balloon event: ");
566    
567      map_context_t *context = (map_context_t*)data;
568      cache_t *cache = context->balloon;
569    
570      if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
571        printf("draw\n");
572    
573    #if 0
574        /* draw pink background to check clipping */
575        cairo_rectangle (event->data.draw.cr,
576                         event->data.draw.rect->x-20, event->data.draw.rect->y-20,
577                         event->data.draw.rect->w+40, event->data.draw.rect->h+40);
578        cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
579        cairo_fill_preserve (event->data.draw.cr);
580        cairo_set_line_width (event->data.draw.cr, 0);
581        cairo_stroke (event->data.draw.cr);
582    #endif
583    
584        /* leave a little border top and left */
585        gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
586    
587        /* draw the cache type icon ... */
588        GdkPixbuf *icon = icon_get(ICON_SIZE, cache->type);
589        cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
590    
591        if(cache->notes && cache->notes->override) {
592          GdkPixbuf *over = icon_get(ICON_SIZE, 11);
593          cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
594        }
595    
596        /* ... and right of it the waypoint id */
597        cairo_text_extents_t extents;
598    
599        if(cache->id) {
600          cairo_select_font_face (event->data.draw.cr, "Sans",
601                                  CAIRO_FONT_SLANT_NORMAL,
602                                  CAIRO_FONT_WEIGHT_BOLD);
603    
604    #ifndef BIG_BALLOONS
605          cairo_set_font_size (event->data.draw.cr, 20.0);
606    #else
607          cairo_set_font_size (event->data.draw.cr, 36.0);
608    #endif
609    
610          cairo_text_extents (event->data.draw.cr, cache->id, &extents);
611    
612          /* display id right of icon vertically centered */
613          x += gdk_pixbuf_get_width(icon) + 5;
614          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
615          cairo_move_to (event->data.draw.cr, x, y);
616          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
617          cairo_show_text (event->data.draw.cr, cache->id);
618          cairo_stroke (event->data.draw.cr);
619    
620          y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
621        } else
622          y += gdk_pixbuf_get_height(icon);
623    
624        /* return to the left border and below icon/text */
625        x = event->data.draw.rect->x;
626    
627        /* everything from here uses the same font */
628        cairo_select_font_face (event->data.draw.cr, "Sans",
629                                CAIRO_FONT_SLANT_NORMAL,
630                                CAIRO_FONT_WEIGHT_NORMAL);
631    
632        cairo_set_font_size (event->data.draw.cr, FONT_SIZE);
633    
634        if(cache->name) {
635          /* draw cache name */
636          cairo_text_extents (event->data.draw.cr, cache->name, &extents);
637          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing);
638          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
639          cairo_show_text (event->data.draw.cr, cache->name);
640          cairo_stroke (event->data.draw.cr);
641    
642          /* return to the left border and below text */
643          y += LINE_SKIP + FONT_SIZE;
644          x = event->data.draw.rect->x;
645        }
646    
647        if(cache->terrain) {
648          int text_y = 0, icon_y = 0;
649    
650          /* draw cache rating */
651          const char *terrain = "Terrain:";
652          icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
653          cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
654    
655          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
656            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
657          else
658            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
659    
660          /* draw "Terrain:" string */
661          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
662          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
663          cairo_show_text (event->data.draw.cr, _(terrain));
664          cairo_stroke (event->data.draw.cr);
665          x += extents.width + 2;
666    
667          /* draw terrain stars */
668          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
669    
670          x += gdk_pixbuf_get_width(icon) + FONT_SIZE/2;
671        }
672    
673        if(cache->difficulty) {
674          int text_y = 0, icon_y = 0;
675    
676          const char *difficulty = "Difficulty:";
677          icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
678          cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
679    
680          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
681            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
682          else
683            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
684    
685          /* draw "Difficulty:" string */
686          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
687          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
688          cairo_show_text (event->data.draw.cr, _(difficulty));
689          cairo_stroke (event->data.draw.cr);
690          x += extents.width + 2;
691    
692          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
693        }
694    
695        /* draw container info */
696        /* TODO ... */
697    
698    
699      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
700        printf("click %s event at %d %d\n",
701               event->data.click.down?"down":"up",
702               event->data.click.x, event->data.click.y);
703    
704        /* make the main screen jump to that cache */
705        if(!event->data.click.down) {
706          if(context->appdata->cur_cache) {
707            printf("ERROR: no current cache should be visible!\n");
708          } else {
709            gpx_t *is_in = NULL;
710    
711            if(!context->appdata->cur_gpx) {
712              printf("click while in \"all\" view\n");
713    
714              /* we first need to figure out which gpx file this cache */
715              /* is in so we can open it first */
716              gpx_t *gpx = context->appdata->gpx;
717              while(gpx && !is_in) {
718                cache_t *cur = gpx->cache;
719                while(cur && !is_in) {
720                  if(cur == cache)
721                    is_in = gpx;
722                  cur = cur->next;
723                }
724                gpx = gpx->next;
725              }
726    
727              if(is_in)
728                gpxlist_goto_cachelist(context->appdata, is_in);
729    
730            } else
731              /* the simple case: there already is an open gpx file and */
732              /* we just jump into the "cache" view */
733              is_in = context->appdata->cur_gpx;
734    
735            if(is_in) {
736              printf("selecting %s in %s\n",
737                     cache->id,
738                     context->appdata->cur_gpx->name);
739    
740              cachelist_goto_cache(context->appdata, cache);
741    
742              /* give focus to main screen (important for maemo) */
743              printf("raising main window\n");
744              gtk_window_present(GTK_WINDOW(context->appdata->window));
745            }
746          }
747        }
748      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
749        printf("removed\n");
750        context->balloon = NULL;
751      }
752    }
753    
754  static gboolean  static gboolean
755  cb_map_gps(GtkButton *button, map_context_t *context) {  on_map_button_release_event(GtkWidget *widget,
756    pos_t *refpos = get_pos(context->appdata);                              GdkEventButton *event, map_context_t *context) {
757    if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
758      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),  
759                                refpos->lat, refpos->lon, 14);    /* in "MAP_CACHE" state only one cache is visible */
760      /* and the map is in navigation mode. the balloon is */
761      /* pretty useless there */
762      if(context->press_on) {
763    
764        coord_t coo;
765        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
766    
767        pos_t pos =
768          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
769    
770        cache_t *nearest = map_closest(context, &pos);
771        if(nearest && nearest == context->press_on) {
772          pos_t cpos = gpx_cache_pos(nearest);
773    
774          float dist = gpx_pos_get_distance(pos, cpos, FALSE);
775          if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
776    
777            context->balloon = nearest;
778            osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
779                                         balloon_cb, context);
780          }
781        }
782        context->press_on = NULL;
783    } else {    } else {
784      /* no coordinates given: display the entire world */      /* save new map position */
785      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),      gfloat lat, lon;
786                                0.0, 0.0, 1);      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
787        context->appdata->map.pos.lat = lat;
788        context->appdata->map.pos.lon = lon;
789    }    }
790    
791    return FALSE;    return FALSE;
792  }  }
793    
794  static GtkWidget  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
795  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    appdata_t *appdata = context->appdata;
796                  char *tooltip) {  
797    GtkWidget *button = gtk_button_new();    /* save map parameters */
798    gtk_button_set_image(GTK_BUTTON(button),    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
799                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));    gint zoom;
800    g_signal_connect(button, "clicked", cb, data);    g_object_get(map, "zoom", &zoom, NULL);
801  #ifndef USE_MAEMO    context->appdata->map.zoom = zoom;
802    gtk_widget_set_tooltip_text(button, tooltip);  
803      gfloat lat, lon;
804      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
805      context->appdata->map.pos.lat = lat;
806      context->appdata->map.pos.lon = lon;
807    
808      gint source;
809      g_object_get(map, "map-source", &source, NULL);
810      context->appdata->map.source = source;
811    
812    #if MAEMO_VERSION_MAJOR == 5
813      /* restore cur_view */
814      context->appdata->cur_view = context->old_view;
815  #endif  #endif
816    return button;  
817      gtk_timeout_remove(context->handler_id);
818      gps_unregister_callback(appdata, context->cb_id);
819    
820      if(context->caches_displayed) {
821        g_free(context->caches_displayed);
822        context->caches_displayed = NULL;
823      }
824    
825      printf("destroy map context\n");
826      g_free(context);
827      appdata->map.context = NULL;
828  }  }
829    
830  static gboolean map_gps_update(gpointer data) {  #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
831    /* get access to zoom buttons */
832    static void
833    on_window_realize(GtkWidget *widget, gpointer data) {
834      if (widget->window) {
835        unsigned char value = 1;
836        Atom hildon_zoom_key_atom =
837          gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
838          integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
839        Display *dpy =
840          GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
841        Window w = GDK_WINDOW_XID(widget->window);
842    
843        XChangeProperty(dpy, w, hildon_zoom_key_atom,
844                        integer_atom, 8, PropModeReplace, &value, 1);
845      }
846    }
847    #endif
848    
849    /* on maemo a window is either on top or completely invisible. this */
850    /* means that we only need to update the map window if its raised.  */
851    /* on ordinary desktops this is different and we always update */
852    
853    static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
854                             gpointer data) {
855    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
856    
857    pos_t *refpos = get_pos(context->appdata);    printf("map got focus\n");
   gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);  
858    
859    /* get reference position and go there */  #ifdef USE_MAEMO
860    gtk_widget_set_sensitive(context->gps, ok);    /* re-enable refresh of map */
861      if(!context->handler_id)
862        context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
863    #endif
864    
865    return TRUE;    map_setup(context);
866  }    return FALSE;
867    }
868    
869  static gboolean on_map_configure(GtkWidget *widget,  static gboolean on_focus_out(GtkWidget *widget, GdkEventFocus *event,
870                                   GdkEventConfigure *event,                           gpointer data) {
871                                   map_context_t *context) {    map_context_t *context = (map_context_t*)data;
872    
873      printf("map lost focus\n");
874    
875    cb_map_gps(NULL, context);    /* save new map position */
876      gfloat lat, lon;
877      g_object_get(widget, "latitude", &lat, "longitude", &lon, NULL);
878    
879      context->appdata->map.pos.lat = lat;
880      context->appdata->map.pos.lon = lon;
881    
882    #ifdef USE_MAEMO
883      gtk_timeout_remove(context->handler_id);
884      context->handler_id = 0;
885    #endif
886    
887    return FALSE;    return FALSE;
888  }  }
889    
890    void map_update(appdata_t *appdata) {
891      printf("map_update\n");
892    #ifndef USE_MAEMO
893      if(appdata->map.context)
894        map_setup(appdata->map.context);
895    #endif
896    }
897    
898    /* callback called by the gps layer whenever gps state changes */
899    static void
900    gps_callback(struct gps_state *state, gpointer data) {
901      printf("map: gps callback\n");
902    }
903    
904  void map(appdata_t *appdata) {  void map(appdata_t *appdata) {
905    map_context_t context;    map_context_t *context = NULL;
   context.appdata = appdata;  
906    
907    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),    /* if the map window already exists, just raise it */
908                            GTK_WINDOW(appdata->window),    if(appdata->map.context) {
909                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      printf("using existing map!\n");
910                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,      gtk_window_present(GTK_WINDOW(appdata->map.context->window));
911                            NULL);      map_setup(appdata->map.context);
912        return;
913      }
914    
915  #ifndef USE_MAEMO    context = appdata->map.context = g_new0(map_context_t, 1);
916    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    printf("allocated new context at %p\n", context);
917    
918      context->appdata = appdata;
919      context->map_complete = FALSE;
920      context->state = MAP_NONE;
921    
922      /* cleanup old (pre 0.8.7) path if it exists */
923      char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
924      if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
925        printf("old file path %s exists\n", old_path);
926        rmdir_recursive(old_path);
927      }
928    
929      /* It is recommanded that all applications share these same */
930      /* map path, so data is only cached once. The path should be: */
931      /* ~/.osm-gps-map on standard PC     (users home) */
932      /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
933      /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
934    #if !defined(USE_MAEMO)
935      char *p = getenv("HOME");
936      if(!p) p = "/tmp";
937      char *path = g_strdup_printf("%s/.osm-gps-map", p);
938    #else
939    #if MAEMO_VERSION_MAJOR == 5
940      char *path = g_strdup("/home/user/.osm-gps-map");
941  #else  #else
942    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);    char *path = g_strdup("/media/mmc2/osm-gps-map");
943    #endif
944  #endif  #endif
945    
   GtkWidget *hbox = gtk_hbox_new(FALSE, 0);  
   
   char *path = g_strdup_printf("%s/map/", appdata->image_path);  
946    const char *proxy = get_proxy_uri(appdata);    const char *proxy = get_proxy_uri(appdata);
947    
948    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    gint source = context->appdata->map.source;
949                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,    if(!source) source = MAP_SOURCE;
950                  "tile-cache", path,  
951                  proxy?"proxy-uri":NULL, proxy,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
952                     "map-source",               source,
953                     "tile-cache",               path,
954                     "auto-center",              FALSE,
955                     "record-trip-history",      FALSE,
956                     "show-trip-history",        FALSE,
957                     proxy?"proxy-uri":NULL,     proxy,
958                   NULL);                   NULL);
959    
960    g_free(path);    g_free(path);
961    
962    g_signal_connect(G_OBJECT(context.widget), "configure-event",    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
963                     G_CALLBACK(on_map_configure), &context);  
964  #if 0  #ifdef USE_MAEMO
965    g_signal_connect(G_OBJECT(context.widget), "button-release-event",    /* we don't use a stackable window here on fremantle, since */
966                     G_CALLBACK(on_map_button_release_event), &context);    /* this leaves the main window independent from the map and */
967      /* the user can e.g. still navigate the main menu */
968      context->window = hildon_window_new();
969    
970    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
971      g_signal_connect(G_OBJECT(context->window), "realize",
972                       G_CALLBACK(on_window_realize), NULL);
973    #endif // MAEMO_VERSION
974    #else
975      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
976  #endif  #endif
977    
978    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);  #ifndef USE_MAEMO
979    /* zoom button box */    gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
980    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);  
981    
982    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
983                       G_CALLBACK(on_focus_in), context);
984    
985    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    g_signal_connect(G_OBJECT(context->widget), "focus-out-event",
986                       G_CALLBACK(on_focus_out), context);
987    
988    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "configure-event",
989                       G_CALLBACK(on_map_configure), context);
990    
991    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
992                       G_CALLBACK(on_map_button_press_event), context);
993    
994    gtk_dialog_run(GTK_DIALOG(dialog));    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
995                       G_CALLBACK(on_map_button_release_event), context);
996    gtk_timeout_remove(context.handler_id);  
997      /* install handler for timed updates of the gps button */
998      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
999      context->cb_id = gps_register_callback(appdata, gps_callback, context);
1000    
1001    #if MAEMO_VERSION_MAJOR == 5
1002      /* prevent some of the main screen things */
1003      context->old_view = appdata->cur_view;
1004      appdata->cur_view = NULL;
1005    #endif
1006    
1007      g_signal_connect(G_OBJECT(context->window), "destroy",
1008                       G_CALLBACK(on_window_destroy), context);
1009    
1010    gtk_widget_destroy(dialog);    gtk_container_add(GTK_CONTAINER(context->window), context->widget);
1011      gtk_widget_show_all(GTK_WIDGET(context->window));
1012  }  }
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