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

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revision 40 by harbaum, Sun Aug 2 19:05:24 2009 UTC revision 205 by harbaum, Mon Nov 23 20:12:22 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>
   GtkWidget *zoomin, *zoomout, *gps;  
   gint handler_id;  
 #if MAEMO_VERSION_MAJOR == 5  
   GtkWidget *old_view;  
42  #endif  #endif
43  } map_context_t;  
44    /* default values */
45    #define MAP_SOURCE  OSM_GPS_MAP_SOURCE_OPENCYCLEMAP
46    #define GPS_DEFAULT_ZOOM 13
47    
48  #define PROXY_KEY  "/system/http_proxy/"  #define PROXY_KEY  "/system/http_proxy/"
49    
# Line 42  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 63  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 72  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);      pos_t *refpos = get_pos(context->appdata);
92    gtk_widget_set_sensitive(context->zoomout, zoom>1);      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 gboolean  static int dist2pixel(map_context_t *context, float km, float lat) {
113  cb_map_zoomin(GtkButton *button, map_context_t *context) {    return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
   map_zoom(context, +1);  
   return FALSE;  
114  }  }
115    
116  static gboolean  static gboolean map_gps_update(gpointer data) {
117  cb_map_zoomout(GtkButton *button, map_context_t *context) {    map_context_t *context = (map_context_t*)data;
118    map_zoom(context, -1);    static gboolean goto_is_enabled = FALSE;
   return FALSE;  
 }  
119    
120  static gboolean    /* get reference position ... */
 cb_map_gps(GtkButton *button, map_context_t *context) {  
121    pos_t *refpos = get_pos(context->appdata);    pos_t *refpos = get_pos(context->appdata);
122    if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {    gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
123      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),  
124                                refpos->lat, refpos->lon, 14);    /* ... and enable "goto" button if it's valid */
125    } else {    if(ok != goto_is_enabled) {
126      /* no coordinates given: display the entire world */      osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
127      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),                  OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context);
128                                0.0, 0.0, 1);      goto_is_enabled = ok;
129    }    }
130    
131    return FALSE;    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 GtkWidget  static void map_draw_cache(GtkWidget *map, cache_t *cache, gboolean semi) {
156  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    int type = semi?ICON_CACHE_TYPE_SEMI:ICON_CACHE_TYPE;
157                  char *tooltip) {  
158    GtkWidget *button = gtk_button_new();    GdkPixbuf *icon = icon_get(type, cache->type);
159    gtk_button_set_image(GTK_BUTTON(button),    GdkPixbuf *over = NULL;
160                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));  
161    g_signal_connect(button, "clicked", cb, data);    if(cache->mine)                   over = icon_get(type, 14);
162  #ifndef USE_MAEMO    else if(cache->found)             over = icon_get(type, 12);
163    gtk_widget_set_tooltip_text(button, tooltip);    else if(cache->notes) {
164  #endif      if(cache->notes->found)         over = icon_get(type, 12);
165    return button;      else if(cache->notes->override) over = icon_get(type, 11);
166        else                            over = icon_get(type, 13);
167      }
168    
169      pos_t *pos = &cache->pos;
170      /* check if there's also an overwritten coordinate */
171      if(cache->notes && cache->notes->override)
172        pos = &cache->notes->pos;
173    
174      if(!isnan(pos->lat) && !isnan(pos->lon)) {
175        osm_gps_map_add_image(OSM_GPS_MAP(map),
176                              pos->lat, pos->lon, icon);
177        if(over)
178          osm_gps_map_add_image(OSM_GPS_MAP(map),
179                                pos->lat, pos->lon, over);
180      }
181  }  }
182    
183  static gboolean map_gps_update(gpointer data) {  static void map_draw_gpx(appdata_t *appdata, cache_display_t *caches,
184    map_context_t *context = (map_context_t*)data;                           GtkWidget *map, gpx_t *gpx,
185                             cache_t *nav, gboolean semi) {
186      if(!gpx->notes_loaded) {
187        notes_load_all(appdata, gpx);
188        gpx->notes_loaded = TRUE;
189      }
190    
191    pos_t *refpos = get_pos(context->appdata);    cache_t *cache = gpx->cache;
192    gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);    while(cache) {
193        /* search if we have that cache already in our list/displayed */
194        int i=0;
195        while(caches[i].id && (strcmp(caches[i].id, cache->id) != 0))
196          i++;
197    
198        if(!caches[i].id) {
199          /* if nav is given draw all other caches semitransparent. */
200          /* if nav is not given do what semi sais */
201          map_draw_cache(map, cache, nav?(cache != nav):semi);
202          caches[i].id = cache->id;
203        }
204    
205    /* get reference position and go there */      cache = cache->next;
206    gtk_widget_set_sensitive(context->gps, ok);    }
207    }
208    
209    return TRUE;  /* draw geocaches and set window title */
210    static void map_setup(map_context_t *context) {
211      char *name = NULL;
212    
213      int cache_num = gpx_total_caches_global(context->appdata->gpx);
214    
215      if(context->caches_displayed && (cache_num != context->cache_list_len)) {
216        //    printf("re-alloc because %p %d/%d\n", context->caches_displayed,
217        //     cache_num, context->cache_list_len);
218        g_free(context->caches_displayed);
219        context->caches_displayed = NULL;
220        context->cache_list_len = 0;
221      }
222    
223      /* allocate buffer */
224      if(cache_num && !context->caches_displayed) {
225        context->cache_list_len = cache_num;
226        context->caches_displayed = g_new0(cache_display_t, cache_num+1);
227        printf("allocated space to handle %d map icons\n", cache_num);
228      }
229    
230      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
231        if(context->state != MAP_ALL) {
232          printf("map_setup(ALL)\n");
233    
234          /* clear any pending balloon */
235          context->balloon = NULL;
236          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
237    
238    #ifdef OSD_NAV
239          /* no navigation in this mode */
240          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
241    #endif
242    
243          /* clear all existing cache images */
244          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
245          memset(context->caches_displayed, 0,
246                 (cache_num+1) * sizeof(cache_display_t));
247    
248          /* draw all geocaches and none is semi-transparent */
249          gpx_t *gpx = context->appdata->gpx;
250          while(gpx) {
251            map_draw_gpx(context->appdata, context->caches_displayed,
252                         context->widget, gpx, NULL, FALSE);
253            gpx = gpx->next;
254          }
255    
256          {
257            int i=0;
258            while(context->caches_displayed[i].id) i++;
259            printf("number of caches actually displayed: %d\n", i);
260          }
261    
262          name = g_strdup(_("all"));
263          context->state = MAP_ALL;
264        }
265      } else if(!context->appdata->cur_cache) {
266        if(context->state != MAP_GPX) {
267          printf("map_setup(GPX)\n");
268    
269          /* clear any pending balloon */
270          context->balloon = NULL;
271          osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
272    
273    #ifdef OSD_NAV
274          /* no navigation in this mode */
275          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
276    #endif
277    
278          /* clear all existing cache images */
279          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
280          memset(context->caches_displayed, 0,
281                 (cache_num+1) * sizeof(cache_display_t));
282    
283          /* draw all geocaches and all other gpx files are semi-transparent */
284          map_draw_gpx(context->appdata, context->caches_displayed,
285                       context->widget, context->appdata->cur_gpx, NULL, FALSE);
286    
287          gpx_t *gpx = context->appdata->gpx;
288          while(gpx) {
289            if(gpx != context->appdata->cur_gpx)
290              map_draw_gpx(context->appdata, context->caches_displayed,
291                           context->widget, gpx, NULL, TRUE);
292    
293            gpx = gpx->next;
294          }
295    
296          name = g_strdup(context->appdata->cur_gpx->name);
297          context->state = MAP_GPX;
298        }
299      } else {
300        cache_t *cache = context->appdata->cur_cache;
301    
302        printf("map_setup(CACHE)\n");
303    
304        /* clear any pending balloon */
305        context->balloon = NULL;
306        osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
307    
308        /* clear all existing ccahe images */
309        osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
310        memset(context->caches_displayed, 0,
311               (cache_num+1) * sizeof(cache_display_t));
312    
313        /* draw all geocaches and all but selected one are semi-transparent */
314        gpx_t *gpx = context->appdata->gpx;
315        while(gpx) {
316          map_draw_gpx(context->appdata, context->caches_displayed,
317                       context->widget, gpx, cache, FALSE);
318          gpx = gpx->next;
319        }
320    
321        name = g_strdup(cache->name);
322        context->state = MAP_CACHE;
323    
324        /* navigation in this mode! */
325        pos_t cpos = gpx_cache_pos(cache);
326    
327    #ifdef OSD_NAV
328        osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
329                                  context->appdata->imperial,
330                                  cpos.lat, cpos.lon, cache->name);
331    #else
332    #warning OSD_NAV not defined!
333    #endif
334      }
335    
336      if(name) {
337        char *title = g_strdup_printf(_("Map - %s"), name);
338        g_free(name);
339    
340        gtk_window_set_title(GTK_WINDOW(context->window), title);
341    
342        g_free(title);
343      } else
344        printf("map_setup(keep)\n");
345  }  }
346    
347  static gboolean on_map_configure(GtkWidget *widget,  static gboolean on_map_configure(GtkWidget *widget,
348                                   GdkEventConfigure *event,                                   GdkEventConfigure *event,
349                                   map_context_t *context) {                                   map_context_t *context) {
350    
351    cb_map_gps(NULL, context);    /* for some reason there's a configure event with 1/1 */
352      /* on diablo. We just ignore this! */
353    
354      printf("on_map_configure %d %d\n",
355             widget->allocation.width,
356             widget->allocation.height);
357    
358      if(!context->map_complete &&
359         (widget->allocation.width > 100) &&
360         (widget->allocation.height > 100)) {
361    
362        /* setup cache state */
363        map_setup(context);
364    
365        /* set default values if they are invalid */
366        if(!context->appdata->map.zoom ||
367           isnan(context->appdata->map.pos.lat) ||
368           isnan(context->appdata->map.pos.lon)) {
369          printf("no valid map position found\n");
370    
371          pos_t *refpos = get_pos(context->appdata);
372          if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
373            printf("use refpos\n");
374    
375            /* use gps position if present */
376            context->appdata->map.pos = *refpos;
377            context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
378          } else {
379            printf("use zero pos\n");
380    
381            /* use world map otherwise */
382            context->appdata->map.pos.lat = 0.0;
383            context->appdata->map.pos.lon = 0.0;
384            context->appdata->map.zoom = 1;
385          }
386        }
387    
388        /* jump to initial position */
389        printf("osm_gps_map_set_mapcenter(%f,%f,%d)\n",
390               context->appdata->map.pos.lat,
391               context->appdata->map.pos.lon,
392               context->appdata->map.zoom);
393    
394        osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
395                                  context->appdata->map.pos.lat,
396                                  context->appdata->map.pos.lon,
397                                  context->appdata->map.zoom);
398        context->map_complete = TRUE;
399      }
400    
401    return FALSE;    return FALSE;
402  }  }
403    
404  static void map_draw_cachelist(GtkWidget *map, cache_t *cache) {  static void
405    map_cachelist_nearest(cache_t *cache, pos_t *pos,
406                          cache_t **result, float *distance) {
407    
408    while(cache) {    while(cache) {
409      GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);      pos_t cpos = gpx_cache_pos(cache);
410    
411      osm_gps_map_add_image(OSM_GPS_MAP(map),      float dist =
412                            cache->pos.lat, cache->pos.lon, icon);        pow(cpos.lat - pos->lat, 2) +
413          pow(cpos.lon - pos->lon, 2);
414    
415        if(!(dist > *distance)) {
416          *result = cache;
417          *distance = dist;
418        }
419    
420      cache = cache->next;      cache = cache->next;
421    }    }
422  }  }
423    
424  #if MAEMO_VERSION_MAJOR == 5  static cache_t *map_closest(map_context_t *context, pos_t *pos) {
425      cache_t *result = NULL;
426      float distance = NAN;
427    
428      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
429        /* search all geocaches */
430        gpx_t *gpx = context->appdata->gpx;
431        while(gpx) {
432          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
433          gpx = gpx->next;
434        }
435      } else if(context->appdata->cur_gpx) {
436        map_cachelist_nearest(context->appdata->cur_gpx->cache,
437                              pos, &result, &distance);
438      } else
439        result = context->appdata->cur_gpx->cache;
440    
441      return result;
442    }
443    
444    /* translate between osm-gps-map positions and gpxview ones */
445    pos_t coord2pos(coord_t coo) {
446      pos_t pos;
447      pos.lat = rad2deg(coo.rlat);
448      pos.lon = rad2deg(coo.rlon);
449      return pos;
450    }
451    
452    #define CLICK_FUZZ (24)
453    
454    static gboolean
455    on_map_button_press_event(GtkWidget *widget,
456                                GdkEventButton *event, map_context_t *context) {
457    
458      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
459    
460      /* check if we actually clicked parts of the OSD */
461      if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
462        return FALSE;
463    
464      /* got a press event without release event? eat it! */
465      if(context->press_on != NULL) {
466        printf("PRESS: already\n");
467        return FALSE;
468      }
469    
470      pos_t pos =
471        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
472    
473      cache_t *nearest = map_closest(context, &pos);
474      if(nearest) {
475        pos_t cpos = gpx_cache_pos(nearest);
476    
477        float dist = gpx_pos_get_distance(pos, cpos, FALSE);
478        if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
479          context->press_on = nearest;
480      }
481    
482      return FALSE;
483    }
484    
485    static void
486    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
487      /* convert the pixbuf into something cairo can handle */
488    
489      // Create a new ImageSurface
490      cairo_surface_t *image_surface =
491        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
492                                   gdk_pixbuf_get_width(buf),
493                                   gdk_pixbuf_get_height(buf));
494    
495      // Create the new Context for the ImageSurface
496      g_assert(image_surface);
497      cairo_t *context = cairo_create(image_surface);
498    
499      // Draw the image on the new Context
500      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
501      cairo_paint(context);
502    
503      // now draw this onto the original context
504      cairo_set_source_surface(cr, image_surface, x, y);
505    
506      cairo_paint(cr);
507    }
508    
509    #ifndef BIG_BALLOONS
510    #define ICON_SIZE  ICON_CACHE_TYPE
511    #else
512    #define ICON_SIZE  ICON_CACHE_TYPE_1_5X
513    #endif
514    
515    #ifndef BIG_BALLOONS
516    #define FONT_SIZE 14.0
517    #else
518    #define FONT_SIZE 22.0
519    #endif
520    #define LINE_SKIP  (FONT_SIZE/4)
521    
522    
523    static void
524    balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
525      printf("balloon event: ");
526    
527      map_context_t *context = (map_context_t*)data;
528      cache_t *cache = context->balloon;
529    
530      if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
531        printf("draw\n");
532    
533    #if 0
534        /* draw pink background to check clipping */
535        cairo_rectangle (event->data.draw.cr,
536                         event->data.draw.rect->x-20, event->data.draw.rect->y-20,
537                         event->data.draw.rect->w+40, event->data.draw.rect->h+40);
538        cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
539        cairo_fill_preserve (event->data.draw.cr);
540        cairo_set_line_width (event->data.draw.cr, 0);
541        cairo_stroke (event->data.draw.cr);
542    #endif
543    
544        /* leave a little border top and left */
545        gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
546    
547        /* draw the cache type icon ... */
548        GdkPixbuf *icon = icon_get(ICON_SIZE, cache->type);
549        cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
550    
551        if(cache->notes && cache->notes->override) {
552          GdkPixbuf *over = icon_get(ICON_SIZE, 11);
553          cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
554        }
555    
556        /* ... and right of it the waypoint id */
557        cairo_text_extents_t extents;
558    
559        if(cache->id) {
560          cairo_select_font_face (event->data.draw.cr, "Sans",
561                                  CAIRO_FONT_SLANT_NORMAL,
562                                  CAIRO_FONT_WEIGHT_BOLD);
563    
564    #ifndef BIG_BALLOONS
565          cairo_set_font_size (event->data.draw.cr, 20.0);
566    #else
567          cairo_set_font_size (event->data.draw.cr, 36.0);
568    #endif
569    
570          cairo_text_extents (event->data.draw.cr, cache->id, &extents);
571    
572          /* display id right of icon vertically centered */
573          x += gdk_pixbuf_get_width(icon) + 5;
574          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
575          cairo_move_to (event->data.draw.cr, x, y);
576          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
577          cairo_show_text (event->data.draw.cr, cache->id);
578          cairo_stroke (event->data.draw.cr);
579    
580          y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
581        } else
582          y += gdk_pixbuf_get_height(icon);
583    
584        /* return to the left border and below icon/text */
585        x = event->data.draw.rect->x;
586    
587        /* everything from here uses the same font */
588        cairo_select_font_face (event->data.draw.cr, "Sans",
589                                CAIRO_FONT_SLANT_NORMAL,
590                                CAIRO_FONT_WEIGHT_NORMAL);
591    
592        cairo_set_font_size (event->data.draw.cr, FONT_SIZE);
593    
594        if(cache->name) {
595          /* draw cache name */
596          cairo_text_extents (event->data.draw.cr, cache->name, &extents);
597          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing);
598          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
599          cairo_show_text (event->data.draw.cr, cache->name);
600          cairo_stroke (event->data.draw.cr);
601    
602          /* return to the left border and below text */
603          y += LINE_SKIP + FONT_SIZE;
604          x = event->data.draw.rect->x;
605        }
606    
607        if(cache->terrain) {
608          int text_y = 0, icon_y = 0;
609    
610          /* draw cache rating */
611          const char *terrain = "Terrain:";
612          icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
613          cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
614    
615          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
616            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
617          else
618            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
619    
620          /* draw "Terrain:" string */
621          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
622          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
623          cairo_show_text (event->data.draw.cr, _(terrain));
624          cairo_stroke (event->data.draw.cr);
625          x += extents.width + 2;
626    
627          /* draw terrain stars */
628          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
629    
630          x += gdk_pixbuf_get_width(icon) + FONT_SIZE/2;
631        }
632    
633        if(cache->difficulty) {
634          int text_y = 0, icon_y = 0;
635    
636          const char *difficulty = "Difficulty:";
637          icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
638          cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
639    
640          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
641            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
642          else
643            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
644    
645          /* draw "Difficulty:" string */
646          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
647          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
648          cairo_show_text (event->data.draw.cr, _(difficulty));
649          cairo_stroke (event->data.draw.cr);
650          x += extents.width + 2;
651    
652          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
653        }
654    
655        /* draw container info */
656        /* TODO ... */
657    
658    
659      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
660        printf("click %s event at %d %d\n",
661               event->data.click.down?"down":"up",
662               event->data.click.x, event->data.click.y);
663    
664        /* make the main screen jump to that cache */
665        if(!event->data.click.down) {
666          if(context->appdata->cur_cache) {
667            printf("ERROR: no current cache should be visible!\n");
668          } else {
669            gpx_t *is_in = NULL;
670    
671            if(!context->appdata->cur_gpx) {
672              printf("click while in \"all\" view\n");
673    
674              /* we first need to figure out which gpx file this cache */
675              /* is in so we can open it first */
676              gpx_t *gpx = context->appdata->gpx;
677              while(gpx && !is_in) {
678                cache_t *cur = gpx->cache;
679                while(cur && !is_in) {
680                  if(cur == cache)
681                    is_in = gpx;
682                  cur = cur->next;
683                }
684                gpx = gpx->next;
685              }
686    
687              if(is_in)
688                gpxlist_goto_cachelist(context->appdata, is_in);
689    
690            } else
691              /* the simple case: there already is an open gpx file and */
692              /* we just jump into the "cache" view */
693              is_in = context->appdata->cur_gpx;
694    
695            if(is_in) {
696              printf("selecting %s in %s\n",
697                     cache->id,
698                     context->appdata->cur_gpx->name);
699    
700              cachelist_goto_cache(context->appdata, cache);
701    
702              /* give focus to main screen (important for maemo) */
703              printf("raising main window\n");
704              gtk_window_present(GTK_WINDOW(context->appdata->window));
705            }
706          }
707        }
708      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
709        printf("removed\n");
710        context->balloon = NULL;
711      }
712    }
713    
714    static gboolean
715    on_map_button_release_event(GtkWidget *widget,
716                                GdkEventButton *event, map_context_t *context) {
717      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
718    
719      /* in "MAP_CACHE" state only one cache is visible */
720      /* and the map is in navigation mode. the balloon is */
721      /* pretty useless there */
722      if(context->press_on) {
723    
724        coord_t coo;
725        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
726    
727        pos_t pos =
728          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
729    
730        cache_t *nearest = map_closest(context, &pos);
731        if(nearest && nearest == context->press_on) {
732          pos_t cpos = gpx_cache_pos(nearest);
733    
734          float dist = gpx_pos_get_distance(pos, cpos, FALSE);
735          if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
736    
737            context->balloon = nearest;
738            osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
739                                         balloon_cb, context);
740          }
741        }
742        context->press_on = NULL;
743      } else {
744        /* save new map position */
745        gfloat lat, lon;
746        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
747        context->appdata->map.pos.lat = lat;
748        context->appdata->map.pos.lon = lon;
749      }
750    
751      return FALSE;
752    }
753    
754  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
755    printf("destroy map view\n");    appdata_t *appdata = context->appdata;
756    
757      /* save map parameters */
758      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
759      gint zoom;
760      g_object_get(map, "zoom", &zoom, NULL);
761      context->appdata->map.zoom = zoom;
762    
763      gfloat lat, lon;
764      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
765      context->appdata->map.pos.lat = lat;
766      context->appdata->map.pos.lon = lon;
767    
768      gint source;
769      g_object_get(map, "map-source", &source, NULL);
770      context->appdata->map.source = source;
771    
772    #if MAEMO_VERSION_MAJOR == 5
773    /* restore cur_view */    /* restore cur_view */
774    context->appdata->cur_view = context->old_view;    context->appdata->cur_view = context->old_view;
775    #endif
776    
777    gtk_timeout_remove(context->handler_id);    gtk_timeout_remove(context->handler_id);
778      gps_unregister_callback(appdata, context->cb_id);
779    
780      if(context->caches_displayed) {
781        g_free(context->caches_displayed);
782        context->caches_displayed = NULL;
783      }
784    
785    g_free(context);    g_free(context);
786      appdata->map.context = NULL;
787    }
788    
789    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
790    /* get access to zoom buttons */
791    static void
792    on_window_realize(GtkWidget *widget, gpointer data) {
793      if (widget->window) {
794        unsigned char value = 1;
795        Atom hildon_zoom_key_atom =
796          gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
797          integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
798        Display *dpy =
799          GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
800        Window w = GDK_WINDOW_XID(widget->window);
801    
802        XChangeProperty(dpy, w, hildon_zoom_key_atom,
803                        integer_atom, 8, PropModeReplace, &value, 1);
804      }
805    }
806    #endif
807    
808    /* on maemo a window is either on top or completely invisible. this */
809    /* means that we only need to update the map window if its raised.  */
810    /* on ordinary desktops this is different and we always update */
811    
812    static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
813                             gpointer data) {
814      map_context_t *context = (map_context_t*)data;
815    
816      printf("map got focus\n");
817    
818    #ifdef USE_MAEMO
819      /* re-enable refresh of map */
820      if(!context->handler_id)
821        context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
822    #endif
823    
824      map_setup(context);
825      return FALSE;
826    }
827    
828    #ifdef USE_MAEMO
829    static gboolean on_focus_out(GtkWidget *widget, GdkEventFocus *event,
830                             gpointer data) {
831      map_context_t *context = (map_context_t*)data;
832    
833      printf("map lost focus\n");
834      gtk_timeout_remove(context->handler_id);
835      context->handler_id = 0;
836    
837      return FALSE;
838  }  }
839  #endif  #endif
840    
841    void map_update(appdata_t *appdata) {
842      printf("map_update\n");
843    #ifndef USE_MAEMO
844      if(appdata->map.context)
845        map_setup(appdata->map.context);
846    #endif
847    }
848    
849    /* callback called by the gps layer whenever gps state changes */
850    static void
851    gps_callback(struct gps_state *state, gpointer data) {
852      printf("map: gps callback\n");
853    }
854    
855  void map(appdata_t *appdata) {  void map(appdata_t *appdata) {
856    map_context_t *context = g_new0(map_context_t, 1);    map_context_t *context = NULL;
857    
858      /* if the map window already exists, just raise it */
859      if(appdata->map.context) {
860        printf("using existing map!\n");
861        gtk_window_present(GTK_WINDOW(appdata->map.context->window));
862        map_setup(appdata->map.context);
863        return;
864      }
865    
866      context = appdata->map.context = g_new0(map_context_t, 1);
867    context->appdata = appdata;    context->appdata = appdata;
868      context->map_complete = FALSE;
869      context->state = MAP_NONE;
870    
871  #if MAEMO_VERSION_MAJOR == 5    /* cleanup old (pre 0.8.7) path if it exists */
872    GtkWidget *window = hildon_stackable_window_new();    char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
873    gtk_window_set_title(GTK_WINDOW(window), _("Map"));    if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
874  #else      printf("old file path %s exists\n", old_path);
875    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),      rmdir_recursive(old_path);
876                            GTK_WINDOW(appdata->window),    }
                           GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,  
                           GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,  
                           NULL);  
877    
878  #ifndef USE_MAEMO    /* It is recommanded that all applications share these same */
879    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    /* map path, so data is only cached once. The path should be: */
880      /* ~/.osm-gps-map on standard PC     (users home) */
881      /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
882      /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
883    #if !defined(USE_MAEMO)
884      char *p = getenv("HOME");
885      if(!p) p = "/tmp";
886      char *path = g_strdup_printf("%s/.osm-gps-map", p);
887    #else
888    #if MAEMO_VERSION_MAJOR == 5
889      char *path = g_strdup("/home/user/.osm-gps-map");
890  #else  #else
891    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);    char *path = g_strdup("/media/mmc2/osm-gps-map");
892  #endif  #endif
893  #endif  #endif
894    
   GtkWidget *hbox = gtk_hbox_new(FALSE, 0);  
   
   char *path = g_strdup_printf("%s/map/", appdata->image_path);  
895    const char *proxy = get_proxy_uri(appdata);    const char *proxy = get_proxy_uri(appdata);
896    
897      gint source = context->appdata->map.source;
898      if(!source) source = MAP_SOURCE;
899    
900    context->widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
901                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "map-source",               source,
902                  "tile-cache", path,                   "tile-cache",               path,
903                  proxy?"proxy-uri":NULL, proxy,                   "auto-center",              FALSE,
904                     "record-trip-history",      FALSE,
905                     "show-trip-history",        FALSE,
906                     proxy?"proxy-uri":NULL,     proxy,
907                   NULL);                   NULL);
908    
909    g_free(path);    g_free(path);
910    
911    /* draw all geocaches */    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
912    gpx_t *gpx = appdata->gpx;  
913    while(gpx) {  #ifdef USE_MAEMO
914      map_draw_cachelist(context->widget, gpx->cache);    /* we don't use a stackable window here on fremantle, since */
915      gpx = gpx->next;    /* this leaves the main window independent from the map and */
916    }    /* the user can e.g. still navigate the main menu */
917      context->window = hildon_window_new();
918    
919    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
920      g_signal_connect(G_OBJECT(context->window), "realize",
921                       G_CALLBACK(on_window_realize), NULL);
922    #endif // MAEMO_VERSION
923    #else
924      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
925    #endif
926    
927    #ifndef USE_MAEMO
928      gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
929    #endif
930    
931      g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
932                       G_CALLBACK(on_focus_in), context);
933    
934    #ifdef USE_MAEMO
935      g_signal_connect(G_OBJECT(context->widget), "focus-out-event",
936                       G_CALLBACK(on_focus_out), context);
937    #endif
938    
939    g_signal_connect(G_OBJECT(context->widget), "configure-event",    g_signal_connect(G_OBJECT(context->widget), "configure-event",
940                     G_CALLBACK(on_map_configure), context);                     G_CALLBACK(on_map_configure), context);
941  #if 0  
942      g_signal_connect(G_OBJECT(context->widget), "button-press-event",
943                       G_CALLBACK(on_map_button_press_event), context);
944    
945    g_signal_connect(G_OBJECT(context->widget), "button-release-event",    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
946                     G_CALLBACK(on_map_button_release_event), context);                     G_CALLBACK(on_map_button_release_event), context);
 #endif  
947    
   gtk_box_pack_start_defaults(GTK_BOX(hbox), context->widget);  
   /* zoom button box */  
   GtkWidget *vbox = gtk_vbox_new(FALSE,0);  
   
   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);  
948    /* install handler for timed updates of the gps button */    /* install handler for timed updates of the gps button */
949    context->handler_id = gtk_timeout_add(1000, map_gps_update, context);    context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
950    gtk_box_pack_start(GTK_BOX(vbox), context->gps, FALSE, FALSE, 0);    context->cb_id = gps_register_callback(appdata, gps_callback, context);
   
   gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);  
951    
952  #if MAEMO_VERSION_MAJOR == 5  #if MAEMO_VERSION_MAJOR == 5
953    /* prevent some of the main screen things */    /* prevent some of the main screen things */
954    context->old_view = appdata->cur_view;    context->old_view = appdata->cur_view;
955    appdata->cur_view = NULL;    appdata->cur_view = NULL;
956    #endif
957    
958    g_signal_connect(G_OBJECT(window), "destroy",    g_signal_connect(G_OBJECT(context->window), "destroy",
959                     G_CALLBACK(on_window_destroy), context);                     G_CALLBACK(on_window_destroy), context);
960    
961    gtk_container_add(GTK_CONTAINER(window), hbox);    gtk_container_add(GTK_CONTAINER(context->window), context->widget);
962    gtk_widget_show_all(GTK_WIDGET(window));    gtk_widget_show_all(GTK_WIDGET(context->window));
   
 #else  
   gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);  
   gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);  
   gtk_widget_show_all(dialog);  
   gtk_dialog_run(GTK_DIALOG(dialog));  
   gtk_timeout_remove(context->handler_id);  
   gtk_widget_destroy(dialog);  
   g_free(context);  
 #endif  
963  }  }
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