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

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revision 33 by harbaum, Tue Jul 28 13:21:40 2009 UTC revision 203 by harbaum, Sun Nov 22 20:39:46 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    snprintf(proxy_buffer, sizeof(proxy_buffer), "%s%s:%u",    return NULL;
85             strncmp(settings->proxy->host, "http://", 7)?"http://":"",  }
            settings->proxy->host, settings->proxy->port);  
86    
87    proxy_buffer[sizeof(proxy_buffer)-1] = 0;  static void
88    printf("gconf_proxy: %s\n", proxy_buffer);  cb_map_gps(osd_button_t but, map_context_t *context) {
 #endif  
89    
90    return proxy_buffer;    if(but == OSD_GPS) {
91        pos_t *refpos = get_pos(context->appdata);
92        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
93          gint zoom;
94          g_object_get(OSM_GPS_MAP(context->widget), "zoom", &zoom, NULL);
95          if(zoom < 10)
96            osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
97                                      refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
98          else
99            osm_gps_map_set_center(OSM_GPS_MAP(context->widget),
100                                   refpos->lat, refpos->lon);
101    
102          /* re-enable centering */
103          g_object_set(context->widget, "auto-center", TRUE, NULL);
104        } else {
105          /* no coordinates given: display the entire world */
106          osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
107                                    0.0, 0.0, 1);
108        }
109      }
110  }  }
111    
112  static void map_zoom(map_context_t *context, int step) {  static int dist2pixel(map_context_t *context, float km, float lat) {
113    int zoom;    return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
114    OsmGpsMap *map = OSM_GPS_MAP(context->widget);  }
   g_object_get(map, "zoom", &zoom, NULL);  
   zoom = osm_gps_map_set_zoom(map, zoom+step);  
115    
116    /* enable/disable zoom buttons as required */  static gboolean map_gps_update(gpointer data) {
117    gtk_widget_set_sensitive(context->zoomin, zoom<17);    map_context_t *context = (map_context_t*)data;
118    gtk_widget_set_sensitive(context->zoomout, zoom>1);    static gboolean goto_is_enabled = FALSE;
119    
120      /* get reference position ... */
121      pos_t *refpos = get_pos(context->appdata);
122      gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
123    
124      /* ... and enable "goto" button if it's valid */
125      if(ok != goto_is_enabled) {
126        osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
127                    OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context);
128        goto_is_enabled = ok;
129      }
130    
131      if(ok) {
132        float heading = NAN;
133        int radius = 0;
134    
135        if(context->appdata->use_gps) {
136          heading = gps_get_heading(context->appdata);
137    
138          /* get error */
139          float eph = gps_get_eph(context->appdata);
140          if(!isnan(eph))
141            radius = dist2pixel(context, eph/1000, refpos->lat);
142        }
143    
144        /* TODO: in order to save energy: only draw if state actually changed */
145    
146        g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
147        osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
148                             refpos->lat, refpos->lon, heading);
149      } else
150        osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
151    
152      return TRUE;
153  }  }
154    
155  static gboolean  static void map_draw_cache(GtkWidget *map, cache_t *cache, gboolean semi) {
156  cb_map_zoomin(GtkButton *button, map_context_t *context) {    int type = semi?ICON_CACHE_TYPE_SEMI:ICON_CACHE_TYPE;
157    map_zoom(context, +1);  
158      GdkPixbuf *icon = icon_get(type, cache->type);
159    
160      /* check if there's also an overwritten coordinate */
161      if(cache->notes && cache->notes->override) {
162        GdkPixbuf *over = icon_get(type, 11);
163    
164        osm_gps_map_add_image(OSM_GPS_MAP(map),
165              cache->notes->pos.lat, cache->notes->pos.lon, icon);
166    
167        osm_gps_map_add_image(OSM_GPS_MAP(map),
168              cache->notes->pos.lat, cache->notes->pos.lon, over);
169      } else {
170        if(!isnan(cache->pos.lat) && !isnan(cache->pos.lon))
171          osm_gps_map_add_image(OSM_GPS_MAP(map),
172                                cache->pos.lat, cache->pos.lon, icon);
173      }
174    }
175    
176    static void map_draw_gpx(appdata_t *appdata, cache_display_t *caches,
177                             GtkWidget *map, gpx_t *gpx,
178                             cache_t *nav, gboolean semi) {
179      if(!gpx->notes_loaded) {
180        notes_load_all(appdata, gpx);
181        gpx->notes_loaded = TRUE;
182      }
183    
184      cache_t *cache = gpx->cache;
185      while(cache) {
186        /* search if we have that cache already in our list/displayed */
187        int i=0;
188        while(caches[i].id && (strcmp(caches[i].id, cache->id) != 0))
189          i++;
190    
191        if(!caches[i].id) {
192          /* if nav is given draw all other caches semitransparent. */
193          /* if nav is not given do what semi sais */
194          map_draw_cache(map, cache, nav?(cache != nav):semi);
195          caches[i].id = cache->id;
196        }
197    
198        cache = cache->next;
199      }
200    }
201    
202    /* draw geocaches and set window title */
203    static void map_setup(map_context_t *context) {
204      char *name = NULL;
205    
206      int cache_num = gpx_total_caches_global(context->appdata->gpx);
207    
208      if(context->caches_displayed && (cache_num != context->cache_list_len)) {
209        //    printf("re-alloc because %p %d/%d\n", context->caches_displayed,
210        //     cache_num, context->cache_list_len);
211        g_free(context->caches_displayed);
212        context->caches_displayed = NULL;
213        context->cache_list_len = 0;
214      }
215    
216      /* allocate buffer */
217      if(cache_num && !context->caches_displayed) {
218        context->cache_list_len = cache_num;
219        context->caches_displayed = g_new0(cache_display_t, cache_num+1);
220        printf("allocated space to handle %d map icons\n", cache_num);
221      }
222    
223      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
224        if(context->state != MAP_ALL) {
225          printf("map_setup(ALL)\n");
226    
227          /* clear any pending balloon */
228          context->balloon = NULL;
229          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
230    
231    #ifdef OSD_NAV
232          /* no navigation in this mode */
233          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
234    #endif
235    
236          /* clear all existing cache images */
237          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
238          memset(context->caches_displayed, 0,
239                 (cache_num+1) * sizeof(cache_display_t));
240    
241          /* draw all geocaches and none is semi-transparent */
242          gpx_t *gpx = context->appdata->gpx;
243          while(gpx) {
244            map_draw_gpx(context->appdata, context->caches_displayed,
245                         context->widget, gpx, NULL, FALSE);
246            gpx = gpx->next;
247          }
248    
249          {
250            int i=0;
251            while(context->caches_displayed[i].id) i++;
252            printf("number of caches actually displayed: %d\n", i);
253          }
254    
255          name = g_strdup(_("all"));
256          context->state = MAP_ALL;
257        }
258      } else if(!context->appdata->cur_cache) {
259        if(context->state != MAP_GPX) {
260          printf("map_setup(GPX)\n");
261    
262          /* clear any pending balloon */
263          context->balloon = NULL;
264          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
265    
266    #ifdef OSD_NAV
267          /* no navigation in this mode */
268          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
269    #endif
270    
271          /* clear all existing cache images */
272          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
273          memset(context->caches_displayed, 0,
274                 (cache_num+1) * sizeof(cache_display_t));
275    
276          /* draw all geocaches and all other gpx files are semi-transparent */
277          map_draw_gpx(context->appdata, context->caches_displayed,
278                       context->widget, context->appdata->cur_gpx, NULL, FALSE);
279    
280          gpx_t *gpx = context->appdata->gpx;
281          while(gpx) {
282            if(gpx != context->appdata->cur_gpx)
283              map_draw_gpx(context->appdata, context->caches_displayed,
284                           context->widget, gpx, NULL, TRUE);
285    
286            gpx = gpx->next;
287          }
288    
289          name = g_strdup(context->appdata->cur_gpx->name);
290          context->state = MAP_GPX;
291        }
292      } else {
293        cache_t *cache = context->appdata->cur_cache;
294    
295        printf("map_setup(CACHE)\n");
296    
297        /* clear any pending balloon */
298        context->balloon = NULL;
299        osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
300    
301        /* clear all existing ccahe images */
302        osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
303        memset(context->caches_displayed, 0,
304               (cache_num+1) * sizeof(cache_display_t));
305    
306        /* draw all geocaches and all but selected one are semi-transparent */
307        gpx_t *gpx = context->appdata->gpx;
308        while(gpx) {
309          map_draw_gpx(context->appdata, context->caches_displayed,
310                       context->widget, gpx, cache, FALSE);
311          gpx = gpx->next;
312        }
313    
314        name = g_strdup(cache->name);
315        context->state = MAP_CACHE;
316    
317        /* navigation in this mode! */
318        pos_t cpos = gpx_cache_pos(cache);
319    
320    #ifdef OSD_NAV
321        osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
322                                  context->appdata->imperial,
323                                  cpos.lat, cpos.lon, cache->name);
324    #else
325    #warning OSD_NAV not defined!
326    #endif
327      }
328    
329      if(name) {
330        char *title = g_strdup_printf(_("Map - %s"), name);
331        g_free(name);
332    
333        gtk_window_set_title(GTK_WINDOW(context->window), title);
334    
335        g_free(title);
336      } else
337        printf("map_setup(keep)\n");
338    }
339    
340    static gboolean on_map_configure(GtkWidget *widget,
341                                     GdkEventConfigure *event,
342                                     map_context_t *context) {
343    
344      /* for some reason there's a configure event with 1/1 */
345      /* on diablo. We just ignore this! */
346    
347      printf("on_map_configure %d %d\n",
348             widget->allocation.width,
349             widget->allocation.height);
350    
351      if(!context->map_complete &&
352         (widget->allocation.width > 100) &&
353         (widget->allocation.height > 100)) {
354    
355        /* setup cache state */
356        map_setup(context);
357    
358        /* set default values if they are invalid */
359        if(!context->appdata->map.zoom ||
360           isnan(context->appdata->map.pos.lat) ||
361           isnan(context->appdata->map.pos.lon)) {
362          printf("no valid map position found\n");
363    
364          pos_t *refpos = get_pos(context->appdata);
365          if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
366            printf("use refpos\n");
367    
368            /* use gps position if present */
369            context->appdata->map.pos = *refpos;
370            context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
371          } else {
372            printf("use zero pos\n");
373    
374            /* use world map otherwise */
375            context->appdata->map.pos.lat = 0.0;
376            context->appdata->map.pos.lon = 0.0;
377            context->appdata->map.zoom = 1;
378          }
379        }
380    
381        /* jump to initial position */
382        printf("osm_gps_map_set_mapcenter(%f,%f,%d)\n",
383               context->appdata->map.pos.lat,
384               context->appdata->map.pos.lon,
385               context->appdata->map.zoom);
386    
387        osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
388                                  context->appdata->map.pos.lat,
389                                  context->appdata->map.pos.lon,
390                                  context->appdata->map.zoom);
391        context->map_complete = TRUE;
392      }
393    
394    return FALSE;    return FALSE;
395  }  }
396    
397    static void
398    map_cachelist_nearest(cache_t *cache, pos_t *pos,
399                          cache_t **result, float *distance) {
400    
401      while(cache) {
402        pos_t cpos = gpx_cache_pos(cache);
403    
404        float dist =
405          pow(cpos.lat - pos->lat, 2) +
406          pow(cpos.lon - pos->lon, 2);
407    
408        if(!(dist > *distance)) {
409          *result = cache;
410          *distance = dist;
411        }
412    
413        cache = cache->next;
414      }
415    }
416    
417    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
418      cache_t *result = NULL;
419      float distance = NAN;
420    
421      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
422        /* search all geocaches */
423        gpx_t *gpx = context->appdata->gpx;
424        while(gpx) {
425          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
426          gpx = gpx->next;
427        }
428      } else if(context->appdata->cur_gpx) {
429        map_cachelist_nearest(context->appdata->cur_gpx->cache,
430                              pos, &result, &distance);
431      } else
432        result = context->appdata->cur_gpx->cache;
433    
434      return result;
435    }
436    
437    /* translate between osm-gps-map positions and gpxview ones */
438    pos_t coord2pos(coord_t coo) {
439      pos_t pos;
440      pos.lat = rad2deg(coo.rlat);
441      pos.lon = rad2deg(coo.rlon);
442      return pos;
443    }
444    
445    #define CLICK_FUZZ (24)
446    
447  static gboolean  static gboolean
448  cb_map_zoomout(GtkButton *button, map_context_t *context) {  on_map_button_press_event(GtkWidget *widget,
449    map_zoom(context, -1);                              GdkEventButton *event, map_context_t *context) {
450    
451      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
452    
453      /* check if we actually clicked parts of the OSD */
454      if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
455        return FALSE;
456    
457      /* got a press event without release event? eat it! */
458      if(context->press_on != NULL) {
459        printf("PRESS: already\n");
460        return FALSE;
461      }
462    
463      pos_t pos =
464        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
465    
466      cache_t *nearest = map_closest(context, &pos);
467      if(nearest) {
468        pos_t cpos = gpx_cache_pos(nearest);
469    
470        float dist = gpx_pos_get_distance(pos, cpos, FALSE);
471        if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
472          context->press_on = nearest;
473      }
474    
475    return FALSE;    return FALSE;
476  }  }
477    
478    static void
479    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
480      /* convert the pixbuf into something cairo can handle */
481    
482      // Create a new ImageSurface
483      cairo_surface_t *image_surface =
484        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
485                                   gdk_pixbuf_get_width(buf),
486                                   gdk_pixbuf_get_height(buf));
487    
488      // Create the new Context for the ImageSurface
489      g_assert(image_surface);
490      cairo_t *context = cairo_create(image_surface);
491    
492      // Draw the image on the new Context
493      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
494      cairo_paint(context);
495    
496      // now draw this onto the original context
497      cairo_set_source_surface(cr, image_surface, x, y);
498    
499      cairo_paint(cr);
500    }
501    
502    #ifndef BIG_BALLOONS
503    #define ICON_SIZE  ICON_CACHE_TYPE
504    #else
505    #define ICON_SIZE  ICON_CACHE_TYPE_1_5X
506    #endif
507    
508    #ifndef BIG_BALLOONS
509    #define FONT_SIZE 14.0
510    #else
511    #define FONT_SIZE 22.0
512    #endif
513    #define LINE_SKIP  (FONT_SIZE/4)
514    
515    
516    static void
517    balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
518      printf("balloon event: ");
519    
520      map_context_t *context = (map_context_t*)data;
521      cache_t *cache = context->balloon;
522    
523      if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
524        printf("draw\n");
525    
526    #if 0
527        /* draw pink background to check clipping */
528        cairo_rectangle (event->data.draw.cr,
529                         event->data.draw.rect->x-20, event->data.draw.rect->y-20,
530                         event->data.draw.rect->w+40, event->data.draw.rect->h+40);
531        cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
532        cairo_fill_preserve (event->data.draw.cr);
533        cairo_set_line_width (event->data.draw.cr, 0);
534        cairo_stroke (event->data.draw.cr);
535    #endif
536    
537        /* leave a little border top and left */
538        gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
539    
540        /* draw the cache type icon ... */
541        GdkPixbuf *icon = icon_get(ICON_SIZE, cache->type);
542        cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
543    
544        if(cache->notes && cache->notes->override) {
545          GdkPixbuf *over = icon_get(ICON_SIZE, 11);
546          cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
547        }
548    
549        /* ... and right of it the waypoint id */
550        cairo_text_extents_t extents;
551    
552        if(cache->id) {
553          cairo_select_font_face (event->data.draw.cr, "Sans",
554                                  CAIRO_FONT_SLANT_NORMAL,
555                                  CAIRO_FONT_WEIGHT_BOLD);
556    
557    #ifndef BIG_BALLOONS
558          cairo_set_font_size (event->data.draw.cr, 20.0);
559    #else
560          cairo_set_font_size (event->data.draw.cr, 36.0);
561    #endif
562    
563          cairo_text_extents (event->data.draw.cr, cache->id, &extents);
564    
565          /* display id right of icon vertically centered */
566          x += gdk_pixbuf_get_width(icon) + 5;
567          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
568          cairo_move_to (event->data.draw.cr, x, y);
569          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
570          cairo_show_text (event->data.draw.cr, cache->id);
571          cairo_stroke (event->data.draw.cr);
572    
573          y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
574        } else
575          y += gdk_pixbuf_get_height(icon);
576    
577        /* return to the left border and below icon/text */
578        x = event->data.draw.rect->x;
579    
580        /* everything from here uses the same font */
581        cairo_select_font_face (event->data.draw.cr, "Sans",
582                                CAIRO_FONT_SLANT_NORMAL,
583                                CAIRO_FONT_WEIGHT_NORMAL);
584    
585        cairo_set_font_size (event->data.draw.cr, FONT_SIZE);
586    
587        if(cache->name) {
588          /* draw cache name */
589          cairo_text_extents (event->data.draw.cr, cache->name, &extents);
590          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing);
591          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
592          cairo_show_text (event->data.draw.cr, cache->name);
593          cairo_stroke (event->data.draw.cr);
594    
595          /* return to the left border and below text */
596          y += LINE_SKIP + FONT_SIZE;
597          x = event->data.draw.rect->x;
598        }
599    
600        if(cache->terrain) {
601          int text_y = 0, icon_y = 0;
602    
603          /* draw cache rating */
604          const char *terrain = "Terrain:";
605          icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
606          cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
607    
608          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
609            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
610          else
611            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
612    
613          /* draw "Terrain:" string */
614          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
615          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
616          cairo_show_text (event->data.draw.cr, _(terrain));
617          cairo_stroke (event->data.draw.cr);
618          x += extents.width + 2;
619    
620          /* draw terrain stars */
621          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
622    
623          x += gdk_pixbuf_get_width(icon) + FONT_SIZE/2;
624        }
625    
626        if(cache->difficulty) {
627          int text_y = 0, icon_y = 0;
628    
629          const char *difficulty = "Difficulty:";
630          icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
631          cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
632    
633          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
634            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
635          else
636            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
637    
638          /* draw "Difficulty:" string */
639          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
640          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
641          cairo_show_text (event->data.draw.cr, _(difficulty));
642          cairo_stroke (event->data.draw.cr);
643          x += extents.width + 2;
644    
645          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
646        }
647    
648        /* draw container info */
649        /* TODO ... */
650    
651    
652      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
653        printf("click %s event at %d %d\n",
654               event->data.click.down?"down":"up",
655               event->data.click.x, event->data.click.y);
656    
657        /* make the main screen jump to that cache */
658        if(!event->data.click.down) {
659          if(context->appdata->cur_cache) {
660            printf("ERROR: no current cache should be visible!\n");
661          } else {
662            gpx_t *is_in = NULL;
663    
664            if(!context->appdata->cur_gpx) {
665              printf("click while in \"all\" view\n");
666    
667              /* we first need to figure out which gpx file this cache */
668              /* is in so we can open it first */
669              gpx_t *gpx = context->appdata->gpx;
670              while(gpx && !is_in) {
671                cache_t *cur = gpx->cache;
672                while(cur && !is_in) {
673                  if(cur == cache)
674                    is_in = gpx;
675                  cur = cur->next;
676                }
677                gpx = gpx->next;
678              }
679    
680              if(is_in)
681                gpxlist_goto_cachelist(context->appdata, is_in);
682    
683            } else
684              /* the simple case: there already is an open gpx file and */
685              /* we just jump into the "cache" view */
686              is_in = context->appdata->cur_gpx;
687    
688            if(is_in) {
689              printf("selecting %s in %s\n",
690                     cache->id,
691                     context->appdata->cur_gpx->name);
692    
693              cachelist_goto_cache(context->appdata, cache);
694    
695              /* give focus to main screen (important for maemo) */
696              printf("raising main window\n");
697              gtk_window_present(GTK_WINDOW(context->appdata->window));
698            }
699          }
700        }
701      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
702        printf("removed\n");
703        context->balloon = NULL;
704      }
705    }
706    
707  static gboolean  static gboolean
708  cb_map_gps(GtkButton *button, map_context_t *context) {  on_map_button_release_event(GtkWidget *widget,
709                                GdkEventButton *event, map_context_t *context) {
710      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
711    
712    //  osm_gps_map_set_center(OSM_GPS_MAP(context->widget),    /* in "MAP_CACHE" state only one cache is visible */
713    //                     DEG2RAD(pos.lat), DEG2RAD(pos.lon));    /* and the map is in navigation mode. the balloon is */
714      /* pretty useless there */
715      if(context->press_on) {
716    
717        coord_t coo;
718        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
719    
720        pos_t pos =
721          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
722    
723        cache_t *nearest = map_closest(context, &pos);
724        if(nearest && nearest == context->press_on) {
725          pos_t cpos = gpx_cache_pos(nearest);
726    
727          float dist = gpx_pos_get_distance(pos, cpos, FALSE);
728          if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
729    
730            context->balloon = nearest;
731            osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
732                                         balloon_cb, context);
733          }
734        }
735        context->press_on = NULL;
736      } else {
737        /* save new map position */
738        gfloat lat, lon;
739        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
740        context->appdata->map.pos.lat = lat;
741        context->appdata->map.pos.lon = lon;
742      }
743    
744    return FALSE;    return FALSE;
745  }  }
746    
747  static GtkWidget  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
748  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    appdata_t *appdata = context->appdata;
749                  char *tooltip) {  
750    GtkWidget *button = gtk_button_new();    /* save map parameters */
751    gtk_button_set_image(GTK_BUTTON(button),    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
752                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));    gint zoom;
753    g_signal_connect(button, "clicked", cb, data);    g_object_get(map, "zoom", &zoom, NULL);
754  #ifndef USE_MAEMO    context->appdata->map.zoom = zoom;
755    gtk_widget_set_tooltip_text(button, tooltip);  
756      gfloat lat, lon;
757      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
758      context->appdata->map.pos.lat = lat;
759      context->appdata->map.pos.lon = lon;
760    
761      gint source;
762      g_object_get(map, "map-source", &source, NULL);
763      context->appdata->map.source = source;
764    
765    #if MAEMO_VERSION_MAJOR == 5
766      /* restore cur_view */
767      context->appdata->cur_view = context->old_view;
768  #endif  #endif
769    return button;  
770      gtk_timeout_remove(context->handler_id);
771      gps_unregister_callback(appdata, context->cb_id);
772    
773      if(context->caches_displayed) {
774        g_free(context->caches_displayed);
775        context->caches_displayed = NULL;
776      }
777    
778      g_free(context);
779      appdata->map.context = NULL;
780  }  }
781    
782  static gboolean map_gps_update(gpointer data) {  #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
783    /* get access to zoom buttons */
784    static void
785    on_window_realize(GtkWidget *widget, gpointer data) {
786      if (widget->window) {
787        unsigned char value = 1;
788        Atom hildon_zoom_key_atom =
789          gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
790          integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
791        Display *dpy =
792          GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
793        Window w = GDK_WINDOW_XID(widget->window);
794    
795        XChangeProperty(dpy, w, hildon_zoom_key_atom,
796                        integer_atom, 8, PropModeReplace, &value, 1);
797      }
798    }
799    #endif
800    
801    /* on maemo a window is either on top or completely invisible. this */
802    /* means that we only need to update the map window if its raised.  */
803    /* on ordinary desktops this is different and we always update */
804    
805    static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
806                             gpointer data) {
807    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
808    
809    //  gtk_widget_set_sensitive(context->map.gps, gps_fix);    printf("map got focus\n");
810    
811    return TRUE;  #ifdef USE_MAEMO
812      /* re-enable refresh of map */
813      if(!context->handler_id)
814        context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
815    #endif
816    
817      map_setup(context);
818      return FALSE;
819    }
820    
821    #ifdef USE_MAEMO
822    static gboolean on_focus_out(GtkWidget *widget, GdkEventFocus *event,
823                             gpointer data) {
824      map_context_t *context = (map_context_t*)data;
825    
826      printf("map lost focus\n");
827      gtk_timeout_remove(context->handler_id);
828      context->handler_id = 0;
829    
830      return FALSE;
831  }  }
832    #endif
833    
834    void map_update(appdata_t *appdata) {
835      printf("map_update\n");
836    #ifndef USE_MAEMO
837      if(appdata->map.context)
838        map_setup(appdata->map.context);
839    #endif
840    }
841    
842    /* callback called by the gps layer whenever gps state changes */
843    static void
844    gps_callback(struct gps_state *state, gpointer data) {
845      printf("map: gps callback\n");
846    }
847    
848  void map(appdata_t *appdata) {  void map(appdata_t *appdata) {
849    map_context_t context;    map_context_t *context = NULL;
850    
851    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),    /* if the map window already exists, just raise it */
852                            GTK_WINDOW(appdata->window),    if(appdata->map.context) {
853                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      printf("using existing map!\n");
854                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,      gtk_window_present(GTK_WINDOW(appdata->map.context->window));
855                            NULL);      map_setup(appdata->map.context);
856        return;
857      }
858    
859  #ifndef USE_MAEMO    context = appdata->map.context = g_new0(map_context_t, 1);
860    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    context->appdata = appdata;
861      context->map_complete = FALSE;
862      context->state = MAP_NONE;
863    
864      /* cleanup old (pre 0.8.7) path if it exists */
865      char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
866      if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
867        printf("old file path %s exists\n", old_path);
868        rmdir_recursive(old_path);
869      }
870    
871      /* It is recommanded that all applications share these same */
872      /* map path, so data is only cached once. The path should be: */
873      /* ~/.osm-gps-map on standard PC     (users home) */
874      /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
875      /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
876    #if !defined(USE_MAEMO)
877      char *p = getenv("HOME");
878      if(!p) p = "/tmp";
879      char *path = g_strdup_printf("%s/.osm-gps-map", p);
880    #else
881    #if MAEMO_VERSION_MAJOR == 5
882      char *path = g_strdup("/home/user/.osm-gps-map");
883  #else  #else
884    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);    char *path = g_strdup("/media/mmc2/osm-gps-map");
885    #endif
886  #endif  #endif
887    
888    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    const char *proxy = get_proxy_uri(appdata);
889    
890    char *path = g_strdup_printf("%s/map/", appdata->image_path);    gint source = context->appdata->map.source;
891      if(!source) source = MAP_SOURCE;
892    
893    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
894                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "map-source",               source,
895                  "proxy-uri", get_proxy_uri(),                   "tile-cache",               path,
896                  "tile-cache", path,                   "auto-center",              FALSE,
897                     "record-trip-history",      FALSE,
898                     "show-trip-history",        FALSE,
899                     proxy?"proxy-uri":NULL,     proxy,
900                   NULL);                   NULL);
901    
902    g_free(path);    g_free(path);
903    
904  #if 0    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
905    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  
906                     G_CALLBACK(on_map_button_release_event), &context);  #ifdef USE_MAEMO
907      /* we don't use a stackable window here on fremantle, since */
908      /* this leaves the main window independent from the map and */
909      /* the user can e.g. still navigate the main menu */
910      context->window = hildon_window_new();
911    
912    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
913      g_signal_connect(G_OBJECT(context->window), "realize",
914                       G_CALLBACK(on_window_realize), NULL);
915    #endif // MAEMO_VERSION
916    #else
917      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
918  #endif  #endif
919    
920    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);  #ifndef USE_MAEMO
921    /* zoom button box */    gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
922    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);  
923    
924    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
925                       G_CALLBACK(on_focus_in), context);
926    
927    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);  #ifdef USE_MAEMO
928      g_signal_connect(G_OBJECT(context->widget), "focus-out-event",
929                       G_CALLBACK(on_focus_out), context);
930    #endif
931    
932    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "configure-event",
933                       G_CALLBACK(on_map_configure), context);
934    
935    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
936                       G_CALLBACK(on_map_button_press_event), context);
937    
938    gtk_dialog_run(GTK_DIALOG(dialog));    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
939                       G_CALLBACK(on_map_button_release_event), context);
940    gtk_widget_destroy(dialog);  
941      /* install handler for timed updates of the gps button */
942      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
943      context->cb_id = gps_register_callback(appdata, gps_callback, context);
944    
945    #if MAEMO_VERSION_MAJOR == 5
946      /* prevent some of the main screen things */
947      context->old_view = appdata->cur_view;
948      appdata->cur_view = NULL;
949    #endif
950    
951      g_signal_connect(G_OBJECT(context->window), "destroy",
952                       G_CALLBACK(on_window_destroy), context);
953    
954      gtk_container_add(GTK_CONTAINER(context->window), context->widget);
955      gtk_widget_show_all(GTK_WIDGET(context->window));
956  }  }
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