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

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revision 33 by harbaum, Tue Jul 28 13:21:40 2009 UTC revision 148 by harbaum, Wed Oct 28 11:57:54 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  #include "gpxview.h"  #include "gpxview.h"
26    #include "converter.h"
27    #include <math.h>    // for isnan
28    
29  #ifdef ENABLE_OSM_GPS_MAP  #ifdef ENABLE_OSM_GPS_MAP
30  #include "osm-gps-map.h"  #include "osm-gps-map.h"
31    #include "osm-gps-map-osd-classic.h"
32    #endif
33    
34    #if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5)
35    #include <gdk/gdkx.h>
36    #include <X11/Xatom.h>
37  #endif  #endif
38    
39  typedef struct {  /* default values */
40    GtkWidget *widget;  #define MAP_SOURCE  OSM_GPS_MAP_SOURCE_OPENCYCLEMAP
41    GtkWidget *zoomin, *zoomout, *gps;  #define GPS_DEFAULT_ZOOM 13
42    gint handler_id;  
43  } map_context_t;  #define PROXY_KEY  "/system/http_proxy/"
44    
45  static const char *get_proxy_uri(void) {  static const char *get_proxy_uri(appdata_t *appdata) {
46    static char proxy_buffer[64];    static char proxy_buffer[64] = "";
47    
48    /* use environment settings if preset */    /* use environment settings if preset */
49    const char *proxy = g_getenv("http_proxy");    const char *proxy = g_getenv("http_proxy");
# Line 39  static const char *get_proxy_uri(void) { Line 52  static const char *get_proxy_uri(void) {
52      return proxy;      return proxy;
53    }    }
54    
55  #if 0    /* ------------- get proxy settings -------------------- */
56    /* otherwise try settings */    if(gconf_client_get_bool(appdata->gconf_client,
57    if(!settings || !settings->proxy ||                             PROXY_KEY "use_http_proxy", NULL)) {
58       !settings->proxy->host) return NULL;  
59        /* we can savely ignore things like "ignore_hosts" since we */
60        /* are pretty sure not inside the net of one of our map renderers */
61        /* (unless the user works at google :-) */
62    
63        /* get basic settings */
64        char *host =
65          gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL);
66        if(host) {
67          int port =
68            gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL);
69    
70          snprintf(proxy_buffer, sizeof(proxy_buffer),
71                   "http://%s:%u", host, port);
72    
73          g_free(host);
74        }
75        return proxy_buffer;
76      }
77    
78    snprintf(proxy_buffer, sizeof(proxy_buffer), "%s%s:%u",    return NULL;
79             strncmp(settings->proxy->host, "http://", 7)?"http://":"",  }
            settings->proxy->host, settings->proxy->port);  
80    
81    proxy_buffer[sizeof(proxy_buffer)-1] = 0;  static void
82    printf("gconf_proxy: %s\n", proxy_buffer);  cb_map_gps(osd_button_t but, map_context_t *context) {
 #endif  
83    
84    return proxy_buffer;    if(but == OSD_GPS) {
85        pos_t *refpos = get_pos(context->appdata);
86        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
87          gint zoom;
88          g_object_get(OSM_GPS_MAP(context->widget), "zoom", &zoom, NULL);
89          if(zoom < 10)
90            osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
91                                      refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
92          else
93            osm_gps_map_set_center(OSM_GPS_MAP(context->widget),
94                                   refpos->lat, refpos->lon);
95    
96          /* re-enable centering */
97          g_object_set(context->widget, "auto-center", TRUE, NULL);
98        } else {
99          /* no coordinates given: display the entire world */
100          osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
101                                    0.0, 0.0, 1);
102        }
103      }
104  }  }
105    
106  static void map_zoom(map_context_t *context, int step) {  static int dist2pixel(map_context_t *context, float km, float lat) {
107    int zoom;    return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
108    OsmGpsMap *map = OSM_GPS_MAP(context->widget);  }
   g_object_get(map, "zoom", &zoom, NULL);  
   zoom = osm_gps_map_set_zoom(map, zoom+step);  
109    
110    /* enable/disable zoom buttons as required */  static gboolean map_gps_update(gpointer data) {
111    gtk_widget_set_sensitive(context->zoomin, zoom<17);    map_context_t *context = (map_context_t*)data;
112    gtk_widget_set_sensitive(context->zoomout, zoom>1);    static gboolean goto_is_enabled = FALSE;
113    
114      /* get reference position ... */
115      pos_t *refpos = get_pos(context->appdata);
116      gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
117    
118      /* ... and enable "goto" button if it's valid */
119      if(ok != goto_is_enabled) {
120        osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
121                    OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context);
122        goto_is_enabled = ok;
123      }
124    
125      if(ok) {
126        float heading = NAN;
127        int radius = 0;
128    
129        if(context->appdata->use_gps) {
130          heading = gps_get_heading(context->appdata);
131    
132          /* get error */
133          float eph = gps_get_eph(context->appdata);
134          if(!isnan(eph))
135            radius = dist2pixel(context, eph/1000, refpos->lat);
136        }
137    
138        /* TODO: in order to save energy: only draw if state actually changed */
139    
140        g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
141        osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
142                             refpos->lat, refpos->lon, heading);
143      } else
144        osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
145    
146      return TRUE;
147  }  }
148    
149  static gboolean  static void map_draw_cache(GtkWidget *map, cache_t *cache) {
150  cb_map_zoomin(GtkButton *button, map_context_t *context) {    GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
151    map_zoom(context, +1);  
152      /* check if there's also an overwritten coordinate */
153      if(cache->notes && cache->notes->override) {
154        GdkPixbuf *over = icon_get(ICON_MISC, 1);
155    
156        osm_gps_map_add_image(OSM_GPS_MAP(map),
157              cache->notes->pos.lat, cache->notes->pos.lon, icon);
158    
159        osm_gps_map_add_image(OSM_GPS_MAP(map),
160              cache->notes->pos.lat, cache->notes->pos.lon, over);
161      } else {
162        if(!isnan(cache->pos.lat) && !isnan(cache->pos.lon))
163          osm_gps_map_add_image(OSM_GPS_MAP(map),
164                                cache->pos.lat, cache->pos.lon, icon);
165      }
166    }
167    
168    static void map_draw_gpx(appdata_t *appdata, GtkWidget *map, gpx_t *gpx) {
169      if(!gpx->notes_loaded) {
170        notes_load_all(appdata, gpx);
171        gpx->notes_loaded = TRUE;
172      }
173    
174      cache_t *cache = gpx->cache;
175      while(cache) {
176        map_draw_cache(map, cache);
177        cache = cache->next;
178      }
179    }
180    
181    /* draw geocaches and set window title */
182    static void map_setup(map_context_t *context) {
183      char *name = NULL;
184    
185      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
186        if(context->state != MAP_ALL) {
187          printf("map_setup(ALL)\n");
188    
189    #ifdef OSD_NAV
190          /* no navigation in this mode */
191          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
192    #endif
193    
194          /* clear all existing ccahe images */
195          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
196    
197          /* draw all geocaches */
198          gpx_t *gpx = context->appdata->gpx;
199          while(gpx) {
200            map_draw_gpx(context->appdata, context->widget, gpx);
201            gpx = gpx->next;
202          }
203          name = g_strdup(_("all"));
204          context->state = MAP_ALL;
205        }
206      } else if(!context->appdata->cur_cache) {
207        if(context->state != MAP_GPX) {
208          printf("map_setup(GPX)\n");
209    
210    #ifdef OSD_NAV
211          /* no navigation in this mode */
212          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
213    #endif
214    
215          /* clear all existing ccahe images */
216          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
217    
218          map_draw_gpx(context->appdata, context->widget,
219                       context->appdata->cur_gpx);
220          name = g_strdup(context->appdata->cur_gpx->name);
221          context->state = MAP_GPX;
222        }
223      } else {
224        cache_t *cache = context->appdata->cur_cache;
225    
226        printf("map_setp(CACHE)\n");
227    
228        /* no balloons in this mode */
229        context->balloon = NULL;
230        osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
231    
232        /* clear all existing ccahe images */
233        osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
234    
235        map_draw_cache(context->widget, cache);
236        name = g_strdup(cache->name);
237        context->state = MAP_CACHE;
238    
239        /* navigation in this mode! */
240        pos_t cpos = gpx_cache_pos(cache);
241    
242    #ifdef OSD_NAV
243        osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
244                                  context->appdata->imperial,
245                                  cpos.lat, cpos.lon, cache->name);
246    #else
247    #warning OSD_NAV not defined!
248    #endif
249      }
250    
251      if(name) {
252        char *title = g_strdup_printf(_("Map - %s"), name);
253        g_free(name);
254    
255        gtk_window_set_title(GTK_WINDOW(context->window), title);
256    
257        g_free(title);
258      } else
259        printf("map_setup(keep)\n");
260    }
261    
262    static gboolean on_map_configure(GtkWidget *widget,
263                                     GdkEventConfigure *event,
264                                     map_context_t *context) {
265    
266      /* for some reason there's a configure event with 1/1 */
267      /* on diablo. We just ignore this! */
268    
269      printf("on_map_configure %d %d\n",
270             widget->allocation.width,
271             widget->allocation.height);
272    
273      if(!context->map_complete &&
274         (widget->allocation.width > 100) &&
275         (widget->allocation.height > 100)) {
276    
277        /* setup cache state */
278        map_setup(context);
279    
280        /* set default values if they are invalid */
281        if(!context->appdata->map.zoom ||
282           isnan(context->appdata->map.pos.lat) ||
283           isnan(context->appdata->map.pos.lon)) {
284          printf("no valid map position found\n");
285    
286          pos_t *refpos = get_pos(context->appdata);
287          if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
288            printf("use refpos\n");
289    
290            /* use gps position if present */
291            context->appdata->map.pos = *refpos;
292            context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
293          } else {
294            printf("use zero pos\n");
295    
296            /* use world map otherwise */
297            context->appdata->map.pos.lat = 0.0;
298            context->appdata->map.pos.lon = 0.0;
299            context->appdata->map.zoom = 1;
300          }
301        }
302    
303        /* jump to initial position */
304        printf("osm_gps_map_set_mapcenter(%f,%f,%d)\n",
305               context->appdata->map.pos.lat,
306               context->appdata->map.pos.lon,
307               context->appdata->map.zoom);
308    
309        osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
310                                  context->appdata->map.pos.lat,
311                                  context->appdata->map.pos.lon,
312                                  context->appdata->map.zoom);
313        context->map_complete = TRUE;
314      }
315    
316    return FALSE;    return FALSE;
317  }  }
318    
319    static void
320    map_cachelist_nearest(cache_t *cache, pos_t *pos,
321                          cache_t **result, float *distance) {
322    
323      while(cache) {
324        pos_t cpos = gpx_cache_pos(cache);
325    
326        float dist =
327          pow(cpos.lat - pos->lat, 2) +
328          pow(cpos.lon - pos->lon, 2);
329    
330        if(!(dist > *distance)) {
331          *result = cache;
332          *distance = dist;
333        }
334    
335        cache = cache->next;
336      }
337    }
338    
339    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
340      cache_t *result = NULL;
341      float distance = NAN;
342    
343      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
344        /* search all geocaches */
345        gpx_t *gpx = context->appdata->gpx;
346        while(gpx) {
347          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
348          gpx = gpx->next;
349        }
350      } else if(context->appdata->cur_gpx) {
351        map_cachelist_nearest(context->appdata->cur_gpx->cache,
352                              pos, &result, &distance);
353      } else
354        result = context->appdata->cur_gpx->cache;
355    
356      return result;
357    }
358    
359    /* translate between osm-gps-map positions and gpxview ones */
360    pos_t coord2pos(coord_t coo) {
361      pos_t pos;
362      pos.lat = rad2deg(coo.rlat);
363      pos.lon = rad2deg(coo.rlon);
364      return pos;
365    }
366    
367    #define CLICK_FUZZ (24)
368    
369  static gboolean  static gboolean
370  cb_map_zoomout(GtkButton *button, map_context_t *context) {  on_map_button_press_event(GtkWidget *widget,
371    map_zoom(context, -1);                              GdkEventButton *event, map_context_t *context) {
372    
373      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
374    
375      /* check if we actually clicked parts of the OSD */
376      if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
377        return FALSE;
378    
379      /* got a press event without release event? eat it! */
380      if(context->press_on != NULL) {
381        printf("PRESS: already\n");
382        return FALSE;
383      }
384    
385      pos_t pos =
386        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
387    
388      cache_t *nearest = map_closest(context, &pos);
389      if(nearest) {
390        pos_t cpos = gpx_cache_pos(nearest);
391    
392        float dist = gpx_pos_get_distance(pos, cpos, FALSE);
393        if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
394          context->press_on = nearest;
395      }
396    
397    return FALSE;    return FALSE;
398  }  }
399    
400    static void
401    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
402      /* convert the pixbuf into something cairo can handle */
403    
404      // Create a new ImageSurface
405      cairo_surface_t *image_surface =
406        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
407                                   gdk_pixbuf_get_width(buf),
408                                   gdk_pixbuf_get_height(buf));
409    
410      // Create the new Context for the ImageSurface
411      cairo_t *context = cairo_create(image_surface);
412    
413      // Draw the image on the new Context
414      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
415      cairo_paint(context);
416    
417      // now draw this onto the original context
418      cairo_set_source_surface(cr, image_surface, x, y);
419    
420      cairo_paint(cr);
421    }
422    
423    #ifndef BIG_BALLOONS
424    #define LINE_SKIP  7
425    #else
426    #define LINE_SKIP  12
427    #endif
428    
429    static void
430    balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
431      printf("balloon event: ");
432    
433      map_context_t *context = (map_context_t*)data;
434      cache_t *cache = context->balloon;
435    
436      if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
437        printf("draw\n");
438    
439    #if 0
440        /* draw pink background to check clipping */
441        cairo_rectangle (event->data.draw.cr,
442                         event->data.draw.rect->x-20, event->data.draw.rect->y-20,
443                         event->data.draw.rect->w+40, event->data.draw.rect->h+40);
444        cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
445        cairo_fill_preserve (event->data.draw.cr);
446        cairo_set_line_width (event->data.draw.cr, 0);
447        cairo_stroke (event->data.draw.cr);
448    #endif
449    
450        /* leave a little border top and left */
451        gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
452    
453        /* draw the cache type icon ... */
454        GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
455        cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
456    
457        if(cache->notes && cache->notes->override) {
458          GdkPixbuf *over = icon_get(ICON_MISC, 1);
459          cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
460        }
461    
462        /* ... and right of it the waypoint id */
463        cairo_text_extents_t extents;
464    
465        if(cache->id) {
466          cairo_select_font_face (event->data.draw.cr, "Sans",
467                                  CAIRO_FONT_SLANT_NORMAL,
468                                  CAIRO_FONT_WEIGHT_BOLD);
469    
470    #ifndef BIG_BALLOONS
471          cairo_set_font_size (event->data.draw.cr, 20.0);
472    #else
473          cairo_set_font_size (event->data.draw.cr, 36.0);
474    #endif
475    
476          cairo_text_extents (event->data.draw.cr, cache->id, &extents);
477    
478          /* display id right of icon vertically centered */
479          x += gdk_pixbuf_get_width(icon) + 5;
480          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
481          cairo_move_to (event->data.draw.cr, x, y);
482          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
483          cairo_show_text (event->data.draw.cr, cache->id);
484          cairo_stroke (event->data.draw.cr);
485    
486          y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
487        } else
488          y += gdk_pixbuf_get_height(icon);
489    
490        /* return to the left border and below icon/text */
491        x = event->data.draw.rect->x;
492    
493        /* everything from here uses the same font */
494        cairo_select_font_face (event->data.draw.cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
495                                CAIRO_FONT_WEIGHT_NORMAL);
496    #ifndef BIG_BALLOONS
497        cairo_set_font_size (event->data.draw.cr, 14.0);
498    #else
499        cairo_set_font_size (event->data.draw.cr, 22.0);
500    #endif
501    
502        if(cache->name) {
503          /* draw cache name */
504          cairo_text_extents (event->data.draw.cr, cache->name, &extents);
505          y += extents.height;
506          cairo_move_to (event->data.draw.cr, x, y);
507          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
508          cairo_show_text (event->data.draw.cr, cache->name);
509          cairo_stroke (event->data.draw.cr);
510    
511          /* return to the left border and below text */
512          y += LINE_SKIP;
513          x = event->data.draw.rect->x;
514        }
515    
516        if(cache->terrain) {
517          /* draw cache rating */
518          const char *terrain = "Terrain:";
519          icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
520          cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
521          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
522    
523          /* draw "Terrain:" string */
524          cairo_move_to (event->data.draw.cr, x, y);
525          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
526          cairo_show_text (event->data.draw.cr, _(terrain));
527          cairo_stroke (event->data.draw.cr);
528          x += extents.width + 2;
529    
530          /* draw terrain stars */
531          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y -
532                            (gdk_pixbuf_get_height(icon) + extents.height)/2);
533    
534          x += gdk_pixbuf_get_width(icon) + LINE_SKIP;
535        y -= (gdk_pixbuf_get_height(icon) + extents.height)/2;
536        }
537    
538        if(cache->difficulty) {
539          const char *difficulty = "Difficulty:";
540          cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
541          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
542    
543          /* draw "Difficulty:" string */
544          cairo_move_to (event->data.draw.cr, x, y);
545          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
546          cairo_show_text (event->data.draw.cr, _(difficulty));
547          cairo_stroke (event->data.draw.cr);
548          x += extents.width + 2;
549    
550          icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
551          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y -
552                          (gdk_pixbuf_get_height(icon) + extents.height)/2);
553        }
554      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
555        printf("click %s event at %d %d\n",
556               event->data.click.down?"down":"up",
557               event->data.click.x, event->data.click.y);
558    
559        /* make the main screen jump to that cache */
560        if(!event->data.click.down) {
561          if(context->appdata->cur_cache) {
562            printf("ERROR: no current cache should be visible!\n");
563          } else {
564            gpx_t *is_in = NULL;
565    
566            if(!context->appdata->cur_gpx) {
567              printf("click while in \"all\" view\n");
568    
569              /* we first need to figure out which gpx file this cache */
570              /* is in so we can open it first */
571              gpx_t *gpx = context->appdata->gpx;
572              while(gpx && !is_in) {
573                cache_t *cur = gpx->cache;
574                while(cur && !is_in) {
575                  if(cur == cache)
576                    is_in = gpx;
577                  cur = cur->next;
578                }
579                gpx = gpx->next;
580              }
581    
582              if(is_in)
583                gpxlist_goto_cachelist(context->appdata, is_in);
584    
585            } else
586              /* the simple case: there already is an open gpx file and */
587              /* we just jump into the "cache" view */
588              is_in = context->appdata->cur_gpx;
589    
590            if(is_in) {
591              printf("selecting %s in %s\n",
592                     cache->id,
593                     context->appdata->cur_gpx->name);
594    
595              cachelist_goto_cache(context->appdata, cache);
596    
597              /* give focus to main screen (important for maemo) */
598              printf("raising main window\n");
599              gtk_window_present(GTK_WINDOW(context->appdata->window));
600            }
601          }
602        }
603      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
604        printf("removed\n");
605        context->balloon = NULL;
606      }
607    }
608    
609  static gboolean  static gboolean
610  cb_map_gps(GtkButton *button, map_context_t *context) {  on_map_button_release_event(GtkWidget *widget,
611                                GdkEventButton *event, map_context_t *context) {
612      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
613    
614    //  osm_gps_map_set_center(OSM_GPS_MAP(context->widget),    /* in "MAP_CACHE" state only one cache is visible */
615    //                     DEG2RAD(pos.lat), DEG2RAD(pos.lon));    /* and the map is in navigation mode. the balloon is */
616      /* pretty useless there */
617      if(context->press_on && (context->state != MAP_CACHE)) {
618    
619        coord_t coo;
620        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
621    
622        pos_t pos =
623          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
624    
625        cache_t *nearest = map_closest(context, &pos);
626        if(nearest && nearest == context->press_on) {
627          pos_t cpos = gpx_cache_pos(nearest);
628    
629          float dist = gpx_pos_get_distance(pos, cpos, FALSE);
630          if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
631    
632            context->balloon = nearest;
633            osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
634                                         balloon_cb, context);
635          }
636        }
637        context->press_on = NULL;
638      } else {
639        /* save new map position */
640        gfloat lat, lon;
641        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
642        context->appdata->map.pos.lat = lat;
643        context->appdata->map.pos.lon = lon;
644      }
645    
646    return FALSE;    return FALSE;
647  }  }
648    
649  static GtkWidget  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
650  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    appdata_t *appdata = context->appdata;
651                  char *tooltip) {  
652    GtkWidget *button = gtk_button_new();    /* save map parameters */
653    gtk_button_set_image(GTK_BUTTON(button),    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
654                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));    gint zoom;
655    g_signal_connect(button, "clicked", cb, data);    g_object_get(map, "zoom", &zoom, NULL);
656  #ifndef USE_MAEMO    context->appdata->map.zoom = zoom;
657    gtk_widget_set_tooltip_text(button, tooltip);  
658      gfloat lat, lon;
659      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
660      context->appdata->map.pos.lat = lat;
661      context->appdata->map.pos.lon = lon;
662    
663      gint source;
664      g_object_get(map, "map-source", &source, NULL);
665      context->appdata->map.source = source;
666    
667    #if MAEMO_VERSION_MAJOR == 5
668      /* restore cur_view */
669      context->appdata->cur_view = context->old_view;
670  #endif  #endif
   return button;  
 }  
671    
672  static gboolean map_gps_update(gpointer data) {    gtk_timeout_remove(context->handler_id);
673    map_context_t *context = (map_context_t*)data;  
674      g_free(context);
675      appdata->map.context = NULL;
676    }
677    
678    //  gtk_widget_set_sensitive(context->map.gps, gps_fix);  #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
679    /* get access to zoom buttons */
680    static void
681    on_window_realize(GtkWidget *widget, gpointer data) {
682      if (widget->window) {
683        unsigned char value = 1;
684        Atom hildon_zoom_key_atom =
685          gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
686          integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
687        Display *dpy =
688          GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
689        Window w = GDK_WINDOW_XID(widget->window);
690    
691    return TRUE;      XChangeProperty(dpy, w, hildon_zoom_key_atom,
692                        integer_atom, 8, PropModeReplace, &value, 1);
693      }
694  }  }
695    #endif
696    
697    /* on maemo a window is either on top or completely invisible. this */
698    /* means that we only need to update the map window if its raised.  */
699    /* on ordinary desktops this is different and we always update */
700    
701    static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
702                             gpointer data) {
703      printf("map got focus\n");
704      map_setup((map_context_t*)data);
705      return FALSE;
706    }
707    
708    void map_update(appdata_t *appdata) {
709      printf("map_update\n");
710    #ifndef USE_MAEMO
711      if(appdata->map.context)
712        map_setup(appdata->map.context);
713    #endif
714    }
715    
716  void map(appdata_t *appdata) {  void map(appdata_t *appdata) {
717    map_context_t context;    map_context_t *context = NULL;
718    
719    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),    /* if the map window already exists, just raise it */
720                            GTK_WINDOW(appdata->window),    if(appdata->map.context) {
721                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      printf("using existing map!\n");
722                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,      gtk_window_present(GTK_WINDOW(appdata->map.context->window));
723                            NULL);      map_setup(appdata->map.context);
724        return;
725      }
726    
727  #ifndef USE_MAEMO    context = appdata->map.context = g_new0(map_context_t, 1);
728    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    context->appdata = appdata;
729      context->map_complete = FALSE;
730      context->state = MAP_NONE;
731    
732      /* cleanup old (pre 0.8.7) path if it exists */
733      char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
734      if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
735        printf("old file path %s exists\n", old_path);
736        rmdir_recursive(old_path);
737      }
738    
739      /* It is recommanded that all applications share these same */
740      /* map path, so data is only cached once. The path should be: */
741      /* ~/.osm-gps-map on standard PC     (users home) */
742      /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
743      /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
744    #if !defined(USE_MAEMO)
745      char *p = getenv("HOME");
746      if(!p) p = "/tmp";
747      char *path = g_strdup_printf("%s/.osm-gps-map", p);
748  #else  #else
749    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);  #if MAEMO_VERSION_MAJOR == 5
750      char *path = g_strdup("/home/user/.osm-gps-map");
751    #else
752      char *path = g_strdup("/media/mmc2/osm-gps-map");
753    #endif
754  #endif  #endif
755    
756    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    const char *proxy = get_proxy_uri(appdata);
757    
758    char *path = g_strdup_printf("%s/map/", appdata->image_path);    gint source = context->appdata->map.source;
759      if(!source) source = MAP_SOURCE;
760    
761    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
762                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "map-source",               source,
763                  "proxy-uri", get_proxy_uri(),                   "tile-cache",               path,
764                  "tile-cache", path,                   "auto-center",              FALSE,
765                     "record-trip-history",      FALSE,
766                     "show-trip-history",        FALSE,
767                     proxy?"proxy-uri":NULL,     proxy,
768                   NULL);                   NULL);
769    
770    g_free(path);    g_free(path);
771    
772  #if 0    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
773    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  
774                     G_CALLBACK(on_map_button_release_event), &context);  #ifdef USE_MAEMO
775      /* we don't use a stackable window here on fremantle, since */
776      /* this leaves the main window independent from the map and */
777      /* the user can e.g. still navigate the main menu */
778      context->window = hildon_window_new();
779    
780    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
781      g_signal_connect(G_OBJECT(context->window), "realize",
782                       G_CALLBACK(on_window_realize), NULL);
783    #endif // MAEMO_VERSION
784    #else
785      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
786  #endif  #endif
787    
788    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);  #ifndef USE_MAEMO
789    /* zoom button box */    gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
790    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);  
791    
792    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
793                       G_CALLBACK(on_focus_in), context);
794    
795    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    g_signal_connect(G_OBJECT(context->widget), "configure-event",
796                       G_CALLBACK(on_map_configure), context);
797    
798    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
799                       G_CALLBACK(on_map_button_press_event), context);
800    
801    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
802                       G_CALLBACK(on_map_button_release_event), context);
803    
804    gtk_dialog_run(GTK_DIALOG(dialog));    /* install handler for timed updates of the gps button */
805      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
806    gtk_widget_destroy(dialog);  
807    #if MAEMO_VERSION_MAJOR == 5
808      /* prevent some of the main screen things */
809      context->old_view = appdata->cur_view;
810      appdata->cur_view = NULL;
811    #endif
812    
813      g_signal_connect(G_OBJECT(context->window), "destroy",
814                       G_CALLBACK(on_window_destroy), context);
815    
816      gtk_container_add(GTK_CONTAINER(context->window), context->widget);
817      gtk_widget_show_all(GTK_WIDGET(context->window));
818  }  }
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