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

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revision 40 by harbaum, Sun Aug 2 19:05:24 2009 UTC revision 44 by harbaum, Tue Aug 4 14:07:18 2009 UTC
# Line 24  Line 24 
24  #include "osm-gps-map.h"  #include "osm-gps-map.h"
25  #endif  #endif
26    
27    /* equatorial radius in meters */
28    #define EQ_RADIUS     (6378137.0)
29    
30    #define RAD2DEG(a)  (((a)*180.0)/M_PI)
31    #define DEG2RAD(a)  (((a)*M_PI)/180.0)
32    
33  typedef struct {  typedef struct {
34    appdata_t *appdata;    appdata_t *appdata;
35    GtkWidget *widget;    GtkWidget *widget;
36    GtkWidget *zoomin, *zoomout, *gps;    GtkWidget *zoomin, *zoomout, *gps;
37    gint handler_id;    gint handler_id;
38      cache_t *press_on;
39  #if MAEMO_VERSION_MAJOR == 5  #if MAEMO_VERSION_MAJOR == 5
40    GtkWidget *old_view;    GtkWidget *old_view;
41  #endif  #endif
# Line 155  static void map_draw_cachelist(GtkWidget Line 162  static void map_draw_cachelist(GtkWidget
162    }    }
163  }  }
164    
165    /* draw a nice popup */
166    typedef struct {
167      appdata_t *appdata;
168      GtkWidget *window;
169      GMainLoop *loop;
170    } popup_context_t;
171    
172    
173    #ifndef USE_HILDON
174    #define POPUP_WIDTH  300
175    #define POPUP_HEIGHT 100
176    #else
177    #define POPUP_WIDTH  600
178    #define POPUP_HEIGHT 200
179    #endif
180    
181    static gboolean
182    pointer_in_window(GtkWidget *widget, gint x_root, gint y_root) {
183      if(GTK_WIDGET_MAPPED(gtk_widget_get_toplevel(widget))) {
184        gint window_x, window_y;
185    
186        gdk_window_get_position(gtk_widget_get_toplevel(widget)->window,
187                                &window_x, &window_y);
188    
189        if(x_root >= window_x && x_root < window_x + widget->allocation.width &&
190            y_root >= window_y && y_root < window_y + widget->allocation.height)
191          return TRUE;
192      }
193    
194      return FALSE;
195    }
196    
197    static gboolean
198    on_button_press_event(GtkWidget *widget,
199                              GdkEventButton *event, popup_context_t *context) {
200      gboolean in = pointer_in_window(widget, event->x_root, event->y_root);
201    
202      printf("overlay button press(in = %d)\n", in);
203      return !in;
204    }
205    
206    static gboolean
207    on_button_release_event(GtkWidget *widget,
208                              GdkEventButton *event, popup_context_t *context) {
209      gboolean in = pointer_in_window(widget, event->x_root, event->y_root);
210    
211      printf("overlay button release(in = %d)\n", in);
212    
213      if(!in) {
214        printf("destroying popup\n");
215        gtk_widget_destroy(gtk_widget_get_toplevel(widget));
216      }
217    
218      return !in;
219    }
220    
221    static void
222    shutdown_loop(popup_context_t *context) {
223      if(g_main_loop_is_running(context->loop))
224        g_main_loop_quit(context->loop);
225    }
226    
227    static gint
228    run_delete_handler(GtkWindow *window, GdkEventAny *event,
229                       popup_context_t *context) {
230      shutdown_loop(context);
231      return TRUE; /* Do not destroy */
232    }
233    
234    static void
235    run_destroy_handler(GtkWindow *window, popup_context_t *context) {
236      /* shutdown_loop will be called by run_unmap_handler */
237      printf("popup destroyed\n");
238    }
239    
240    static void
241    run_unmap_handler(GtkWindow *window, popup_context_t *context) {
242      shutdown_loop(context);
243    }
244    
245    void cache_popup(map_context_t *mcontext, cache_t *cache) {
246      popup_context_t pcontext;
247      pcontext.appdata = mcontext->appdata;
248    
249      pcontext.window = gtk_window_new(GTK_WINDOW_POPUP);
250      gtk_widget_realize(pcontext.window);
251      gtk_window_set_default_size(GTK_WINDOW(pcontext.window),
252                                  POPUP_WIDTH, POPUP_HEIGHT);
253      gtk_window_resize(GTK_WINDOW(pcontext.window),
254                        POPUP_WIDTH, POPUP_HEIGHT);
255      //  gtk_window_set_resizable(GTK_WINDOW(pcontext.window), FALSE);
256      gtk_window_set_transient_for(GTK_WINDOW(pcontext.window),
257                                   GTK_WINDOW(mcontext->appdata->window));
258      gtk_window_set_keep_above(GTK_WINDOW(pcontext.window), TRUE);
259      gtk_window_set_destroy_with_parent(GTK_WINDOW(pcontext.window), TRUE);
260      gtk_window_set_gravity(GTK_WINDOW(pcontext.window), GDK_GRAVITY_STATIC);
261      gtk_window_set_modal(GTK_WINDOW(pcontext.window), TRUE);
262    
263      /* connect events */
264      g_signal_connect(G_OBJECT(pcontext.window), "button-press-event",
265                       G_CALLBACK(on_button_press_event), &pcontext);
266      g_signal_connect(G_OBJECT(pcontext.window), "button-release-event",
267                       G_CALLBACK(on_button_release_event), &pcontext);
268      g_signal_connect(G_OBJECT(pcontext.window), "delete-event",
269                       G_CALLBACK(run_delete_handler), &pcontext);
270      g_signal_connect(G_OBJECT(pcontext.window), "destroy",
271                       G_CALLBACK(run_destroy_handler), &pcontext);
272      g_signal_connect(G_OBJECT(pcontext.window), "unmap",
273                       G_CALLBACK(run_unmap_handler), &pcontext);
274    
275      gdk_pointer_grab(pcontext.window->window, TRUE,
276         GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_MOTION_MASK,
277                       NULL, NULL, GDK_CURRENT_TIME);
278      gtk_grab_add(pcontext.window);
279    
280      /* check whether cache is in upper or lower half of window */
281      gint x, y;
282      osm_gps_map_geographic_to_screen(OSM_GPS_MAP(mcontext->widget),
283                                       cache->pos.lat, cache->pos.lon,
284                                       &x, &y);
285    
286      printf("screen pos %d/%d\n", x, y);
287    
288      gdk_window_get_origin(mcontext->widget->window, &x, &y);
289      printf("window = %d/%d %d/%d\n", x, y,
290             mcontext->widget->allocation.x,
291             mcontext->widget->allocation.y);
292    
293      //  gtk_window_move(GTK_WINDOW(pcontext.window),
294      //              x + button->allocation.x,
295      //              y + button->allocation.y - HEIGHT);
296    
297    
298      gtk_window_move(GTK_WINDOW(pcontext.window),
299                      100,
300                      100);
301    
302      /* a frame with a vscale inside */
303      GtkWidget *frame = gtk_frame_new(NULL);
304      gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_OUT);
305    
306      gtk_container_add(GTK_CONTAINER(frame), gtk_label_new(cache->name));
307      gtk_container_add(GTK_CONTAINER(pcontext.window), frame);
308    
309      gtk_widget_show_all(pcontext.window);
310    
311      /* handle this popup until it's gone */
312    
313      pcontext.loop = g_main_loop_new(NULL, FALSE);
314    
315      GDK_THREADS_LEAVE();
316      g_main_loop_run(pcontext.loop);
317      GDK_THREADS_ENTER();
318    
319      g_main_loop_unref(pcontext.loop);
320    
321      printf("cache popup removed\n");
322    }
323    
324    static void
325    map_cachelist_nearest(cache_t *cache, pos_t *pos,
326                          cache_t **result, float *distance) {
327      while(cache) {
328        float dist =
329          pow(cache->pos.lat - pos->lat, 2) +
330          pow(cache->pos.lon - pos->lon, 2);
331    
332        if(!(dist > *distance)) {
333          *result = cache;
334          *distance = dist;
335        }
336    
337        cache = cache->next;
338      }
339    }
340    
341    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
342      cache_t *result = NULL;
343      float distance = NAN;
344    
345    #ifdef USE_MAEMO
346      if(!context->appdata->cur_gpx) {
347    #endif
348        /* search all geocaches */
349        gpx_t *gpx = context->appdata->gpx;
350        while(gpx) {
351          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
352          gpx = gpx->next;
353        }
354    #ifdef USE_MAEMO
355      } else {
356        map_cachelist_nearest(context->appdata->cur_gpx->cache,
357                              pos, &result, &distance);
358      }
359    #endif
360    
361      return result;
362    }
363    
364    /* translate between osm-gps-map positions and gpxview ones */
365    pos_t coord2pos(coord_t coo) {
366      pos_t pos;
367      pos.lat = RAD2DEG(coo.rlat);
368      pos.lon = RAD2DEG(coo.rlon);
369      return pos;
370    }
371    
372    static int dist2pixel(map_context_t *context, float km, float lat) {
373      int zoom;
374      g_object_get(OSM_GPS_MAP(context->widget), "zoom", &zoom, NULL);
375    
376      /* world at zoom 1 == 512 pixels */
377      float m_per_pix =
378        cos(DEG2RAD(lat))*2*M_PI*EQ_RADIUS/(1<<(8+zoom));
379    
380      return 1000.0*km/m_per_pix;
381    }
382    
383    #define CLICK_FUZZ (16)
384    
385    static gboolean
386    on_map_button_press_event(GtkWidget *widget,
387                                GdkEventButton *event, map_context_t *context) {
388      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
389    
390      /* got a press event without release event? eat it! */
391      if(context->press_on != NULL) {
392        printf("PRESS: already\n");
393        return TRUE;
394      }
395    
396      pos_t pos =
397        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
398    
399      cache_t *nearest = map_closest(context, &pos);
400      if(nearest) {
401        float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
402        if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ)
403          context->press_on = nearest;
404      }
405    
406      return FALSE;
407    }
408    
409    static gboolean
410    on_map_button_release_event(GtkWidget *widget,
411                                GdkEventButton *event, map_context_t *context) {
412      if(context->press_on) {
413        OsmGpsMap *map = OSM_GPS_MAP(context->widget);
414    
415        pos_t pos =
416          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
417    
418        cache_t *nearest = map_closest(context, &pos);
419        if(nearest && nearest == context->press_on) {
420          float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
421          if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ)
422            cache_popup(context, nearest);
423        }
424        context->press_on = NULL;
425      }
426    
427      return FALSE;
428    }
429    
430    
431  #if MAEMO_VERSION_MAJOR == 5  #if MAEMO_VERSION_MAJOR == 5
432  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
433    printf("destroy map view\n");    printf("destroy map view\n");
# Line 171  void map(appdata_t *appdata) { Line 444  void map(appdata_t *appdata) {
444    map_context_t *context = g_new0(map_context_t, 1);    map_context_t *context = g_new0(map_context_t, 1);
445    context->appdata = appdata;    context->appdata = appdata;
446    
447      GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
448    
449      char *path = g_strdup_printf("%s/map/", appdata->image_path);
450      const char *proxy = get_proxy_uri(appdata);
451    
452      context->widget = g_object_new(OSM_TYPE_GPS_MAP,
453                    "repo-uri", MAP_SOURCE_OPENSTREETMAP,
454                    "tile-cache", path,
455                    proxy?"proxy-uri":NULL, proxy,
456                     NULL);
457    
458      g_free(path);
459    
460      char *name = NULL;
461    #ifdef USE_MAEMO
462      if(!appdata->cur_gpx) {
463    #endif
464        /* draw all geocaches */
465        gpx_t *gpx = appdata->gpx;
466        while(gpx) {
467          map_draw_cachelist(context->widget, gpx->cache);
468          gpx = gpx->next;
469        }
470        name = g_strdup(_("all geocaches"));
471    #ifdef USE_MAEMO
472      } else {
473        map_draw_cachelist(context->widget, appdata->cur_gpx->cache);
474        name = g_strdup(appdata->cur_gpx->name);
475      }
476    #endif
477    
478      char *title = g_strdup_printf(_("Map - %s"), name);
479      g_free(name);
480    
481  #if MAEMO_VERSION_MAJOR == 5  #if MAEMO_VERSION_MAJOR == 5
482    GtkWidget *window = hildon_stackable_window_new();    GtkWidget *window = hildon_stackable_window_new();
483    gtk_window_set_title(GTK_WINDOW(window), _("Map"));    gtk_window_set_title(GTK_WINDOW(window), title);
484  #else  #else
485    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),    GtkWidget *dialog = gtk_dialog_new_with_buttons(title,
486                            GTK_WINDOW(appdata->window),                            GTK_WINDOW(appdata->window),
487                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
488                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
# Line 188  void map(appdata_t *appdata) { Line 495  void map(appdata_t *appdata) {
495  #endif  #endif
496  #endif  #endif
497    
498    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    g_free(title);
   
   char *path = g_strdup_printf("%s/map/", appdata->image_path);  
   const char *proxy = get_proxy_uri(appdata);  
   
   context->widget = g_object_new(OSM_TYPE_GPS_MAP,  
                 "repo-uri", MAP_SOURCE_OPENSTREETMAP,  
                 "tile-cache", path,  
                 proxy?"proxy-uri":NULL, proxy,  
                  NULL);  
   
   g_free(path);  
   
   /* draw all geocaches */  
   gpx_t *gpx = appdata->gpx;  
   while(gpx) {  
     map_draw_cachelist(context->widget, gpx->cache);  
     gpx = gpx->next;  
   }  
499    
500    g_signal_connect(G_OBJECT(context->widget), "configure-event",    g_signal_connect(G_OBJECT(context->widget), "configure-event",
501                     G_CALLBACK(on_map_configure), context);                     G_CALLBACK(on_map_configure), context);
502  #if 0  
503      g_signal_connect(G_OBJECT(context->widget), "button-press-event",
504                       G_CALLBACK(on_map_button_press_event), context);
505    
506    g_signal_connect(G_OBJECT(context->widget), "button-release-event",    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
507                     G_CALLBACK(on_map_button_release_event), context);                     G_CALLBACK(on_map_button_release_event), context);
 #endif  
508    
509    gtk_box_pack_start_defaults(GTK_BOX(hbox), context->widget);    gtk_box_pack_start_defaults(GTK_BOX(hbox), context->widget);
510    /* zoom button box */    /* zoom button box */
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