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

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revision 33 by harbaum, Tue Jul 28 13:21:40 2009 UTC revision 57 by harbaum, Sun Aug 16 19:29:01 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 18  Line 18 
18   */   */
19    
20  #include "gpxview.h"  #include "gpxview.h"
21    #include <math.h>    // for isnan
22    
23  #ifdef ENABLE_OSM_GPS_MAP  #ifdef ENABLE_OSM_GPS_MAP
24  #include "osm-gps-map.h"  #include "osm-gps-map.h"
25  #endif  #endif
26    
27  typedef struct {  #define MAP_SOURCE  OSM_GPS_MAP_SOURCE_OPENSTREETMAP
28    GtkWidget *widget;  #define GPS_DEFAULT_ZOOM 13
   GtkWidget *zoomin, *zoomout, *gps;  
   gint handler_id;  
 } map_context_t;  
29    
30  static const char *get_proxy_uri(void) {  /* equatorial radius in meters */
31    static char proxy_buffer[64];  #define EQ_RADIUS     (6378137.0)
32    
33    #define RAD2DEG(a)  (((a)*180.0)/M_PI)
34    #define DEG2RAD(a)  (((a)*M_PI)/180.0)
35    
36    #define PROXY_KEY  "/system/http_proxy/"
37    
38    static const char *get_proxy_uri(appdata_t *appdata) {
39      static char proxy_buffer[64] = "";
40    
41    /* use environment settings if preset */    /* use environment settings if preset */
42    const char *proxy = g_getenv("http_proxy");    const char *proxy = g_getenv("http_proxy");
# Line 39  static const char *get_proxy_uri(void) { Line 45  static const char *get_proxy_uri(void) {
45      return proxy;      return proxy;
46    }    }
47    
48  #if 0    /* ------------- get proxy settings -------------------- */
49    /* otherwise try settings */    if(gconf_client_get_bool(appdata->gconf_client,
50    if(!settings || !settings->proxy ||                             PROXY_KEY "use_http_proxy", NULL)) {
51       !settings->proxy->host) return NULL;  
52        /* we can savely ignore things like "ignore_hosts" since we */
53    snprintf(proxy_buffer, sizeof(proxy_buffer), "%s%s:%u",      /* are pretty sure not inside the net of one of our map renderers */
54             strncmp(settings->proxy->host, "http://", 7)?"http://":"",      /* (unless the user works at google :-) */
55             settings->proxy->host, settings->proxy->port);  
56        /* get basic settings */
57    proxy_buffer[sizeof(proxy_buffer)-1] = 0;      char *host =
58    printf("gconf_proxy: %s\n", proxy_buffer);        gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL);
59  #endif      if(host) {
60          int port =
61            gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL);
62    
63          snprintf(proxy_buffer, sizeof(proxy_buffer),
64                   "http://%s:%u", host, port);
65    
66          g_free(host);
67        }
68        return proxy_buffer;
69      }
70    
71    return proxy_buffer;    return NULL;
72  }  }
73    
74  static void map_zoom(map_context_t *context, int step) {  static void map_zoom(map_context_t *context, int step) {
75    int zoom;    gint zoom;
76    OsmGpsMap *map = OSM_GPS_MAP(context->widget);    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
77    g_object_get(map, "zoom", &zoom, NULL);    g_object_get(map, "zoom", &zoom, NULL);
78    zoom = osm_gps_map_set_zoom(map, zoom+step);    zoom = osm_gps_map_set_zoom(map, zoom+step);
79    
80    /* enable/disable zoom buttons as required */    /* enable/disable zoom buttons as required */
81    gtk_widget_set_sensitive(context->zoomin, zoom<17);    gtk_widget_set_sensitive(context->zoomin,
82    gtk_widget_set_sensitive(context->zoomout, zoom>1);             zoom < osm_gps_map_source_get_max_zoom(MAP_SOURCE));
83      gtk_widget_set_sensitive(context->zoomout,
84               zoom > osm_gps_map_source_get_min_zoom(MAP_SOURCE));
85    
86      /* hmm ... this doesn't really work */
87      osm_gps_map_osd_speed(map, zoom);
88    
89      /* save new zoom */
90      context->appdata->map.zoom = zoom;
91  }  }
92    
93  static gboolean  static gboolean
# Line 80  cb_map_zoomout(GtkButton *button, map_co Line 104  cb_map_zoomout(GtkButton *button, map_co
104    
105  static gboolean  static gboolean
106  cb_map_gps(GtkButton *button, map_context_t *context) {  cb_map_gps(GtkButton *button, map_context_t *context) {
107      pos_t *refpos = get_pos(context->appdata);
108    //  osm_gps_map_set_center(OSM_GPS_MAP(context->widget),    if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
109    //                     DEG2RAD(pos.lat), DEG2RAD(pos.lon));      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
110                          refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
111      } else {
112        /* no coordinates given: display the entire world */
113        osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
114                                  0.0, 0.0, 1);
115      }
116    
117    return FALSE;    return FALSE;
118  }  }
119    
120  static GtkWidget  static GtkWidget
121  *map_add_button(const gchar *icon, GCallback cb, gpointer data,  *map_add_button(int icon, GCallback cb, gpointer data,
122                  char *tooltip) {                  char *tooltip) {
123    GtkWidget *button = gtk_button_new();    GtkWidget *button = gtk_button_new();
124    gtk_button_set_image(GTK_BUTTON(button),    gtk_button_set_image(GTK_BUTTON(button), icon_get_widget(ICON_MISC, icon));
                        gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));  
125    g_signal_connect(button, "clicked", cb, data);    g_signal_connect(button, "clicked", cb, data);
126  #ifndef USE_MAEMO  #ifndef USE_MAEMO
127    gtk_widget_set_tooltip_text(button, tooltip);    gtk_widget_set_tooltip_text(button, tooltip);
# Line 100  static GtkWidget Line 129  static GtkWidget
129    return button;    return button;
130  }  }
131    
132    static int dist2pixel(map_context_t *context, float km, float lat) {
133      return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
134    }
135    
136  static gboolean map_gps_update(gpointer data) {  static gboolean map_gps_update(gpointer data) {
137    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
138    
139    //  gtk_widget_set_sensitive(context->map.gps, gps_fix);    /* get reference position ... */
140      pos_t *refpos = get_pos(context->appdata);
141      gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
142    
143      /* ... and enable "goto" button if it's valid */
144      gtk_widget_set_sensitive(context->gps, ok);
145    
146      if(ok) {
147        float heading = NAN;
148        int radius = 0;
149    
150        if(context->appdata->use_gps) {
151          heading = gps_get_heading(context->appdata);
152    
153          /* get error */
154          float eph = gps_get_eph(context->appdata);
155          if(!isnan(eph))
156            radius = dist2pixel(context, eph/1000, refpos->lat);
157        }
158    
159        g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
160        osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
161                             refpos->lat, refpos->lon, heading);
162      } else
163        osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
164    
165    return TRUE;    return TRUE;
166  }  }
167    
168    static gboolean on_map_configure(GtkWidget *widget,
169                                     GdkEventConfigure *event,
170                                     map_context_t *context) {
171    
172      /* set default values if they are invalid */
173      if(!context->appdata->map.zoom ||
174         isnan(context->appdata->map.pos.lat) ||
175         isnan(context->appdata->map.pos.lon)) {
176        printf("no valid map position found\n");
177    
178        pos_t *refpos = get_pos(context->appdata);
179        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
180          /* use gps position if present */
181          context->appdata->map.pos = *refpos;
182          context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
183        } else {
184          /* use world map otherwise */
185          context->appdata->map.pos.lat = 0.0;
186          context->appdata->map.pos.lon = 0.0;
187          context->appdata->map.zoom = 1;
188        }
189      }
190    
191  void map(appdata_t *appdata) {    /* jump to initial position */
192    map_context_t context;    osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
193                                context->appdata->map.pos.lat,
194                                context->appdata->map.pos.lon,
195                                context->appdata->map.zoom);
196    
197      return FALSE;
198    }
199    
200    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),  static void map_draw_cachelist(GtkWidget *map, cache_t *cache) {
201                            GTK_WINDOW(appdata->window),    while(cache) {
202                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
203                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,  
204                            NULL);      osm_gps_map_add_image(OSM_GPS_MAP(map),
205                              cache->pos.lat, cache->pos.lon, icon);
206    
207  #ifndef USE_MAEMO      cache = cache->next;
208    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    }
209  #else  }
210    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);  
211    static void
212    map_cachelist_nearest(cache_t *cache, pos_t *pos,
213                          cache_t **result, float *distance) {
214      while(cache) {
215        float dist =
216          pow(cache->pos.lat - pos->lat, 2) +
217          pow(cache->pos.lon - pos->lon, 2);
218    
219        if(!(dist > *distance)) {
220          *result = cache;
221          *distance = dist;
222        }
223    
224        cache = cache->next;
225      }
226    }
227    
228    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
229      cache_t *result = NULL;
230      float distance = NAN;
231    
232    #ifdef USE_MAEMO
233      if(!context->appdata->cur_gpx) {
234    #endif
235        /* search all geocaches */
236        gpx_t *gpx = context->appdata->gpx;
237        while(gpx) {
238          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
239          gpx = gpx->next;
240        }
241    #ifdef USE_MAEMO
242      } else {
243        map_cachelist_nearest(context->appdata->cur_gpx->cache,
244                              pos, &result, &distance);
245      }
246    #endif
247    
248      return result;
249    }
250    
251    /* translate between osm-gps-map positions and gpxview ones */
252    pos_t coord2pos(coord_t coo) {
253      pos_t pos;
254      pos.lat = RAD2DEG(coo.rlat);
255      pos.lon = RAD2DEG(coo.rlon);
256      return pos;
257    }
258    
259    #define CLICK_FUZZ (24)
260    
261    static gboolean
262    on_map_button_press_event(GtkWidget *widget,
263                                GdkEventButton *event, map_context_t *context) {
264      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
265    
266      /* got a press event without release event? eat it! */
267      if(context->press_on != NULL) {
268        printf("PRESS: already\n");
269        return TRUE;
270      }
271    
272      pos_t pos =
273        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
274    
275      cache_t *nearest = map_closest(context, &pos);
276      if(nearest) {
277        float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
278        if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ)
279          context->press_on = nearest;
280      }
281    
282      return FALSE;
283    }
284    
285    static gboolean
286    on_map_button_release_event(GtkWidget *widget,
287                                GdkEventButton *event, map_context_t *context) {
288      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
289    
290      if(context->press_on) {
291        coord_t coo;
292        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
293    
294        pos_t pos =
295          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
296    
297        cache_t *nearest = map_closest(context, &pos);
298        if(nearest && nearest == context->press_on) {
299          float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
300          if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) {
301    
302            osm_gps_map_draw_balloon(map, nearest->pos.lat, nearest->pos.lon);
303          }
304        }
305        context->press_on = NULL;
306      } else {
307        /* save new map position */
308        gfloat lat, lon;
309        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
310        context->appdata->map.pos.lat = lat;
311        context->appdata->map.pos.lon = lon;
312      }
313    
314      return FALSE;
315    }
316    
317    static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
318      appdata_t *appdata = context->appdata;
319    
320      printf("destroy map window\n");
321    
322      /* save map parameters */
323      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
324      gint zoom;
325      g_object_get(map, "zoom", &zoom, NULL);
326      context->appdata->map.zoom = zoom;
327    
328      gfloat lat, lon;
329      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
330      context->appdata->map.pos.lat = lat;
331      context->appdata->map.pos.lon = lon;
332    
333    #if MAEMO_VERSION_MAJOR == 5
334      /* restore cur_view */
335      context->appdata->cur_view = context->old_view;
336  #endif  #endif
337    
338      gtk_timeout_remove(context->handler_id);
339    
340      g_free(context);
341      appdata->map.context = NULL;
342    }
343    
344    void map(appdata_t *appdata) {
345      map_context_t *context = NULL;
346    
347      /* if the map window already exists, just raise it */
348      if(appdata->map.context) {
349        gtk_window_present(GTK_WINDOW(appdata->map.context->window));
350        return;
351      }
352    
353      context = appdata->map.context = g_new0(map_context_t, 1);
354      context->appdata = appdata;
355    
356    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
357    
358    char *path = g_strdup_printf("%s/map/", appdata->image_path);    char *path = g_strdup_printf("%s/map/", appdata->image_path);
359      const char *proxy = get_proxy_uri(appdata);
360    
361    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
362                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "map-source",               MAP_SOURCE,
363                  "proxy-uri", get_proxy_uri(),                   "tile-cache",               path,
364                  "tile-cache", path,                   "auto-center",              FALSE,
365                     "record-trip-history",      FALSE,
366                     "show-trip-history",        FALSE,
367                     proxy?"proxy-uri":NULL,     proxy,
368                   NULL);                   NULL);
369    
370    g_free(path);    g_free(path);
371    
372  #if 0    char *name = NULL;
373    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  #ifdef USE_MAEMO
374                     G_CALLBACK(on_map_button_release_event), &context);    if(!appdata->cur_gpx) {
375    #endif
376        /* draw all geocaches */
377        gpx_t *gpx = appdata->gpx;
378        while(gpx) {
379          map_draw_cachelist(context->widget, gpx->cache);
380          gpx = gpx->next;
381        }
382        name = g_strdup(_("all geocaches"));
383    #ifdef USE_MAEMO
384      } else {
385        map_draw_cachelist(context->widget, appdata->cur_gpx->cache);
386        name = g_strdup(appdata->cur_gpx->name);
387      }
388    #endif
389    
390      char *title = g_strdup_printf(_("Map - %s"), name);
391      g_free(name);
392    
393    #ifdef USE_MAEMO
394    #ifdef USE_STACKABLE_WINDOW
395      context->window = hildon_stackable_window_new();
396    #else
397      context->window = hildon_window_new();
398    #endif
399    #else
400      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
401  #endif  #endif
402    
403    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);    gtk_window_set_title(GTK_WINDOW(context->window), title);
404    
405    #ifndef USE_MAEMO
406      gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
407    #endif
408    
409      g_free(title);
410    
411      g_signal_connect(G_OBJECT(context->widget), "configure-event",
412                       G_CALLBACK(on_map_configure), context);
413    
414      g_signal_connect(G_OBJECT(context->widget), "button-press-event",
415                       G_CALLBACK(on_map_button_press_event), context);
416    
417      g_signal_connect(G_OBJECT(context->widget), "button-release-event",
418                       G_CALLBACK(on_map_button_release_event), context);
419    
420      gtk_box_pack_start_defaults(GTK_BOX(hbox), context->widget);
421    /* zoom button box */    /* zoom button box */
422    GtkWidget *vbox = gtk_vbox_new(FALSE,0);    GtkWidget *vbox = gtk_vbox_new(FALSE,0);
423    
424    context.zoomin =    context->zoomin =
425      map_add_button(GTK_STOCK_ZOOM_IN, G_CALLBACK(cb_map_zoomin),      map_add_button(10, G_CALLBACK(cb_map_zoomin),
426                     &context, _("Zoom in"));                     context, _("Zoom in"));
427    gtk_box_pack_start(GTK_BOX(vbox), context.zoomin, FALSE, FALSE, 0);    gtk_box_pack_start(GTK_BOX(vbox), context->zoomin, FALSE, FALSE, 0);
428    
429    context.zoomout =    context->zoomout =
430      map_add_button(GTK_STOCK_ZOOM_OUT, G_CALLBACK(cb_map_zoomout),      map_add_button(11, G_CALLBACK(cb_map_zoomout),
431                     &context, _("Zoom out"));                     context, _("Zoom out"));
432    gtk_box_pack_start(GTK_BOX(vbox), context.zoomout, FALSE, FALSE, 0);    gtk_box_pack_start(GTK_BOX(vbox), context->zoomout, FALSE, FALSE, 0);
433    
434    context.gps =    context->gps =
435      map_add_button(GTK_STOCK_HOME, G_CALLBACK(cb_map_gps),      map_add_button(9, G_CALLBACK(cb_map_gps),
436                     &context, _("Jump to GPS position"));                     context, _("Jump to GPS position"));
437    gtk_widget_set_sensitive(context.gps, FALSE);    gtk_widget_set_sensitive(context->gps, FALSE);
438    
439    /* install handler for timed updates of the gps button */    /* install handler for timed updates of the gps button */
440    context.handler_id = gtk_timeout_add(1000, map_gps_update, &context);    context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
441    gtk_box_pack_start(GTK_BOX(vbox), context.gps, FALSE, FALSE, 0);    gtk_box_pack_start(GTK_BOX(vbox), context->gps, FALSE, FALSE, 0);
442    
443    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
444    
445    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);  #if MAEMO_VERSION_MAJOR == 5
446      /* prevent some of the main screen things */
447    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    context->old_view = appdata->cur_view;
448      appdata->cur_view = NULL;
449    #endif
450    
451    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->window), "destroy",
452                       G_CALLBACK(on_window_destroy), context);
453    
454    gtk_dialog_run(GTK_DIALOG(dialog));    gtk_container_add(GTK_CONTAINER(context->window), hbox);
455      gtk_widget_show_all(GTK_WIDGET(context->window));
   gtk_widget_destroy(dialog);  
   
456  }  }
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  Added in v.57