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

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revision 33 by harbaum, Tue Jul 28 13:21:40 2009 UTC revision 48 by harbaum, Fri Aug 7 07:57:33 2009 UTC
# 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    #define GPS_DEFAULT_ZOOM 13
28    
29    /* equatorial radius in meters */
30    #define EQ_RADIUS     (6378137.0)
31    
32    #define RAD2DEG(a)  (((a)*180.0)/M_PI)
33    #define DEG2RAD(a)  (((a)*M_PI)/180.0)
34    
35  typedef struct {  typedef struct {
36      appdata_t *appdata;
37    GtkWidget *widget;    GtkWidget *widget;
38    GtkWidget *zoomin, *zoomout, *gps;    GtkWidget *zoomin, *zoomout, *gps;
39    gint handler_id;    gint handler_id;
40      cache_t *press_on;
41    #if MAEMO_VERSION_MAJOR == 5
42      GtkWidget *old_view;
43    #endif
44  } map_context_t;  } map_context_t;
45    
46  static const char *get_proxy_uri(void) {  #define PROXY_KEY  "/system/http_proxy/"
47    static char proxy_buffer[64];  
48    static const char *get_proxy_uri(appdata_t *appdata) {
49      static char proxy_buffer[64] = "";
50    
51    /* use environment settings if preset */    /* use environment settings if preset */
52    const char *proxy = g_getenv("http_proxy");    const char *proxy = g_getenv("http_proxy");
# Line 39  static const char *get_proxy_uri(void) { Line 55  static const char *get_proxy_uri(void) {
55      return proxy;      return proxy;
56    }    }
57    
58  #if 0    /* ------------- get proxy settings -------------------- */
59    /* otherwise try settings */    if(gconf_client_get_bool(appdata->gconf_client,
60    if(!settings || !settings->proxy ||                             PROXY_KEY "use_http_proxy", NULL)) {
61       !settings->proxy->host) return NULL;  
62        /* we can savely ignore things like "ignore_hosts" since we */
63    snprintf(proxy_buffer, sizeof(proxy_buffer), "%s%s:%u",      /* are pretty sure not inside the net of one of our map renderers */
64             strncmp(settings->proxy->host, "http://", 7)?"http://":"",      /* (unless the user works at google :-) */
65             settings->proxy->host, settings->proxy->port);  
66        /* get basic settings */
67    proxy_buffer[sizeof(proxy_buffer)-1] = 0;      char *host =
68    printf("gconf_proxy: %s\n", proxy_buffer);        gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL);
69  #endif      if(host) {
70          int port =
71            gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL);
72    
73          snprintf(proxy_buffer, sizeof(proxy_buffer),
74                   "http://%s:%u", host, port);
75    
76          g_free(host);
77        }
78        return proxy_buffer;
79      }
80    
81    return proxy_buffer;    return NULL;
82  }  }
83    
84  static void map_zoom(map_context_t *context, int step) {  static void map_zoom(map_context_t *context, int step) {
85    int zoom;    gint zoom;
86    OsmGpsMap *map = OSM_GPS_MAP(context->widget);    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
87    g_object_get(map, "zoom", &zoom, NULL);    g_object_get(map, "zoom", &zoom, NULL);
88    zoom = osm_gps_map_set_zoom(map, zoom+step);    zoom = osm_gps_map_set_zoom(map, zoom+step);
# Line 64  static void map_zoom(map_context_t *cont Line 90  static void map_zoom(map_context_t *cont
90    /* enable/disable zoom buttons as required */    /* enable/disable zoom buttons as required */
91    gtk_widget_set_sensitive(context->zoomin, zoom<17);    gtk_widget_set_sensitive(context->zoomin, zoom<17);
92    gtk_widget_set_sensitive(context->zoomout, zoom>1);    gtk_widget_set_sensitive(context->zoomout, zoom>1);
93    
94      /* save new zoom */
95      context->appdata->map.zoom = zoom;
96  }  }
97    
98  static gboolean  static gboolean
# Line 80  cb_map_zoomout(GtkButton *button, map_co Line 109  cb_map_zoomout(GtkButton *button, map_co
109    
110  static gboolean  static gboolean
111  cb_map_gps(GtkButton *button, map_context_t *context) {  cb_map_gps(GtkButton *button, map_context_t *context) {
112      pos_t *refpos = get_pos(context->appdata);
113    //  osm_gps_map_set_center(OSM_GPS_MAP(context->widget),    if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
114    //                     DEG2RAD(pos.lat), DEG2RAD(pos.lon));      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
115                          refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
116      } else {
117        /* no coordinates given: display the entire world */
118        osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
119                                  0.0, 0.0, 1);
120      }
121    
122    return FALSE;    return FALSE;
123  }  }
# Line 92  static GtkWidget Line 127  static GtkWidget
127                  char *tooltip) {                  char *tooltip) {
128    GtkWidget *button = gtk_button_new();    GtkWidget *button = gtk_button_new();
129    gtk_button_set_image(GTK_BUTTON(button),    gtk_button_set_image(GTK_BUTTON(button),
130                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_BUTTON));
131    g_signal_connect(button, "clicked", cb, data);    g_signal_connect(button, "clicked", cb, data);
132  #ifndef USE_MAEMO  #ifndef USE_MAEMO
133    gtk_widget_set_tooltip_text(button, tooltip);    gtk_widget_set_tooltip_text(button, tooltip);
# Line 103  static GtkWidget Line 138  static GtkWidget
138  static gboolean map_gps_update(gpointer data) {  static gboolean map_gps_update(gpointer data) {
139    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
140    
141    //  gtk_widget_set_sensitive(context->map.gps, gps_fix);    pos_t *refpos = get_pos(context->appdata);
142      gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
143    
144      /* get reference position and go there */
145      gtk_widget_set_sensitive(context->gps, ok);
146    
147    return TRUE;    return TRUE;
148  }  }
149    
150    static gboolean on_map_configure(GtkWidget *widget,
151                                     GdkEventConfigure *event,
152                                     map_context_t *context) {
153    
154      /* set default values if they are invalid */
155      if(!context->appdata->map.zoom ||
156         isnan(context->appdata->map.pos.lat) ||
157         isnan(context->appdata->map.pos.lon)) {
158        printf("no valid map position found\n");
159    
160        pos_t *refpos = get_pos(context->appdata);
161        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
162          /* use gps position if present */
163          context->appdata->map.pos = *refpos;
164          context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
165        } else {
166          /* use world map otherwise */
167          context->appdata->map.pos.lat = 0.0;
168          context->appdata->map.pos.lon = 0.0;
169          context->appdata->map.zoom = 1;
170        }
171      }
172    
173  void map(appdata_t *appdata) {    /* jump to initial position */
174    map_context_t context;    osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
175                                context->appdata->map.pos.lat,
176                                context->appdata->map.pos.lon,
177                                context->appdata->map.zoom);
178    
179      return FALSE;
180    }
181    
182    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),  static void map_draw_cachelist(GtkWidget *map, cache_t *cache) {
183                            GTK_WINDOW(appdata->window),    while(cache) {
184                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
185                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,  
186                            NULL);      osm_gps_map_add_image(OSM_GPS_MAP(map),
187                              cache->pos.lat, cache->pos.lon, icon);
188    
189        cache = cache->next;
190      }
191    }
192    
193    /* draw a nice popup */
194    typedef struct {
195      appdata_t *appdata;
196      GtkWidget *window;
197      GMainLoop *loop;
198    } popup_context_t;
199    
200    /* draw shape */
201    #define ARROW_BORDER   20
202    #define CORNER_RADIUS  10
203    
204  #ifndef USE_MAEMO  #ifndef USE_MAEMO
205    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);  #define POPUP_WIDTH  300
206    #define POPUP_HEIGHT 100
207  #else  #else
208    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);  #define POPUP_WIDTH  350
209    #define POPUP_HEIGHT 120
210    #endif
211    
212    static gboolean
213    pointer_in_window(GtkWidget *widget, gint x_root, gint y_root) {
214      if(GTK_WIDGET_MAPPED(gtk_widget_get_toplevel(widget))) {
215        gint window_x, window_y;
216    
217        gdk_window_get_position(gtk_widget_get_toplevel(widget)->window,
218                                &window_x, &window_y);
219    
220        if(x_root >= window_x && x_root < window_x + widget->allocation.width &&
221            y_root >= window_y && y_root < window_y + widget->allocation.height)
222          return TRUE;
223      }
224    
225      return FALSE;
226    }
227    
228    static gboolean
229    on_button_press_event(GtkWidget *widget,
230                              GdkEventButton *event, popup_context_t *context) {
231      gboolean in = pointer_in_window(widget, event->x_root, event->y_root);
232    
233      printf("overlay button press (in = %d)\n", in);
234      return !in;
235    }
236    
237    static gboolean
238    on_button_release_event(GtkWidget *widget,
239                              GdkEventButton *event, popup_context_t *context) {
240      gboolean in = pointer_in_window(widget, event->x_root, event->y_root);
241    
242      printf("overlay button release (in = %d)\n", in);
243    
244      if(!in) {
245        printf("destroying popup\n");
246        gtk_widget_destroy(gtk_widget_get_toplevel(widget));
247      }
248    
249      return !in;
250    }
251    
252    static void
253    shutdown_loop(popup_context_t *context) {
254      if(g_main_loop_is_running(context->loop))
255        g_main_loop_quit(context->loop);
256    }
257    
258    static gint
259    run_delete_handler(GtkWindow *window, GdkEventAny *event,
260                       popup_context_t *context) {
261      shutdown_loop(context);
262      return TRUE; /* Do not destroy */
263    }
264    
265    static void
266    run_destroy_handler(GtkWindow *window, popup_context_t *context) {
267      /* shutdown_loop will be called by run_unmap_handler */
268      printf("popup destroyed\n");
269    }
270    
271    static void
272    run_unmap_handler(GtkWindow *window, popup_context_t *context) {
273      shutdown_loop(context);
274    }
275    
276    static void popup_window_shape(GtkWidget *window, int tip_x, int tip_y) {
277      GdkBitmap *mask = gdk_pixmap_new(NULL, POPUP_WIDTH, POPUP_HEIGHT, 1);
278    
279      GdkGC *gc = gdk_gc_new(mask);
280      GdkColormap *colormap;
281      GdkColor black;
282      GdkColor white;
283    
284      /* get black/white color values */
285      colormap = gdk_colormap_get_system();
286      gdk_color_black(colormap, &black);
287      gdk_color_white(colormap, &white);
288    
289      /* erase */
290      gdk_gc_set_foreground(gc, &black);
291      gdk_gc_set_background(gc, &white);
292    
293      /* erase background */
294      gdk_draw_rectangle(mask, gc, TRUE, 0, 0, POPUP_WIDTH, POPUP_HEIGHT);
295    
296      gdk_gc_set_foreground(gc, &white);
297      gdk_gc_set_background(gc, &black);
298    
299      /* the tip is always above or below the "bubble" but never at its side */
300      guint tip_offset = (tip_y == 0)?ARROW_BORDER:0;
301    
302      gdk_draw_rectangle(mask, gc, TRUE,
303                         0, tip_offset + CORNER_RADIUS,
304                         POPUP_WIDTH,
305                         POPUP_HEIGHT - 2*CORNER_RADIUS - ARROW_BORDER);
306    
307      gdk_draw_rectangle(mask, gc, TRUE,
308                         CORNER_RADIUS, tip_offset,
309                         POPUP_WIDTH  - 2*CORNER_RADIUS,
310                         POPUP_HEIGHT - ARROW_BORDER);
311    
312      int off[][2] = {
313              { CORNER_RADIUS,               tip_offset + CORNER_RADIUS },
314              { POPUP_WIDTH - CORNER_RADIUS, tip_offset + CORNER_RADIUS },
315              { POPUP_WIDTH - CORNER_RADIUS,
316                POPUP_HEIGHT - CORNER_RADIUS - ARROW_BORDER + tip_offset},
317              { CORNER_RADIUS,
318                POPUP_HEIGHT - CORNER_RADIUS  - ARROW_BORDER + tip_offset}};
319    
320      int i;
321      for(i=0;i<4;i++) {
322        gdk_draw_arc(mask, gc, TRUE,
323                     off[i][0]-CORNER_RADIUS, off[i][1]-CORNER_RADIUS,
324                     2*CORNER_RADIUS,         2*CORNER_RADIUS,
325                     0, 360*64);
326      }
327    
328      GdkPoint points[3] = { {POPUP_WIDTH*1/3, POPUP_HEIGHT/2},
329                             {POPUP_WIDTH*2/3, POPUP_HEIGHT/2},
330                             {tip_x,tip_y} };
331      gdk_draw_polygon(mask, gc, TRUE, points, 3);
332    
333    
334      gdk_window_shape_combine_mask(window->window, mask, 0, 0);
335    }
336    
337    /* create a left aligned label (normal ones are centered) */
338    static GtkWidget *gtk_label_left_new(char *str) {
339      GtkWidget *label = gtk_label_new(str);
340      gtk_misc_set_alignment(GTK_MISC(label), 0.f, .5f);
341      return label;
342    }
343    
344    /* the small labels are actually only on maemo small */
345    #ifdef USE_MAEMO
346    #define MARKUP_SMALL "<span size='small'>%s</span>"
347    GtkWidget *gtk_label_small_left_new(char *str) {
348      GtkWidget *label = gtk_label_new("");
349      char *markup = g_markup_printf_escaped(MARKUP_SMALL, str);
350      gtk_label_set_markup(GTK_LABEL(label), markup);
351      g_free(markup);
352      gtk_misc_set_alignment(GTK_MISC(label), 0.f, .5f);
353      return label;
354    }
355    #define gtk_label_big_left_new(a) gtk_label_left_new(a)
356    #else
357    #define gtk_label_small_left_new(a) gtk_label_left_new(a)
358    #define MARKUP_BIG "<span size='x-large'>%s</span>"
359    GtkWidget *gtk_label_big_left_new(char *str) {
360      GtkWidget *label = gtk_label_new("");
361      char *markup = g_markup_printf_escaped(MARKUP_BIG, str);
362      gtk_label_set_markup(GTK_LABEL(label), markup);
363      g_free(markup);
364      gtk_misc_set_alignment(GTK_MISC(label), 0.f, .5f);
365      return label;
366    }
367    #endif
368    
369    void cache_popup(map_context_t *mcontext, cache_t *cache) {
370      popup_context_t pcontext;
371      pcontext.appdata = mcontext->appdata;
372    
373      pcontext.window = gtk_window_new(GTK_WINDOW_POPUP);
374      gtk_widget_realize(pcontext.window);
375      gtk_window_set_default_size(GTK_WINDOW(pcontext.window),
376                                  POPUP_WIDTH, POPUP_HEIGHT);
377      gtk_window_resize(GTK_WINDOW(pcontext.window), POPUP_WIDTH, POPUP_HEIGHT);
378      //  gtk_window_set_resizable(GTK_WINDOW(pcontext.window), FALSE);
379      gtk_window_set_transient_for(GTK_WINDOW(pcontext.window),
380                                   GTK_WINDOW(mcontext->appdata->window));
381      gtk_window_set_keep_above(GTK_WINDOW(pcontext.window), TRUE);
382      gtk_window_set_destroy_with_parent(GTK_WINDOW(pcontext.window), TRUE);
383      gtk_window_set_gravity(GTK_WINDOW(pcontext.window), GDK_GRAVITY_STATIC);
384      gtk_window_set_modal(GTK_WINDOW(pcontext.window), TRUE);
385    
386      /* connect events */
387      g_signal_connect(G_OBJECT(pcontext.window), "button-press-event",
388                       G_CALLBACK(on_button_press_event), &pcontext);
389      g_signal_connect(G_OBJECT(pcontext.window), "button-release-event",
390                       G_CALLBACK(on_button_release_event), &pcontext);
391      g_signal_connect(G_OBJECT(pcontext.window), "delete-event",
392                       G_CALLBACK(run_delete_handler), &pcontext);
393      g_signal_connect(G_OBJECT(pcontext.window), "destroy",
394                       G_CALLBACK(run_destroy_handler), &pcontext);
395      g_signal_connect(G_OBJECT(pcontext.window), "unmap",
396                       G_CALLBACK(run_unmap_handler), &pcontext);
397    
398      gdk_pointer_grab(pcontext.window->window, TRUE,
399         GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_MOTION_MASK,
400                       NULL, NULL, GDK_CURRENT_TIME);
401      gtk_grab_add(pcontext.window);
402    
403      /* check whether cache is in upper or lower half of window */
404      gint x, y, sx, sy;
405      osm_gps_map_geographic_to_screen(OSM_GPS_MAP(mcontext->widget),
406                                       cache->pos.lat, cache->pos.lon,
407                                       &sx, &sy);
408    
409      gdk_window_get_origin(mcontext->widget->window, &x, &y);
410    
411      gint ax = 0, ay = 0;
412      if(sx > mcontext->widget->allocation.width/2)
413        ax = POPUP_WIDTH;
414    
415      if(sy > mcontext->widget->allocation.height/2)
416        ay = POPUP_HEIGHT;
417    
418    #if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
419      GdkColor color;
420      gdk_color_parse("darkgray", &color);
421      gtk_widget_modify_bg(GTK_WIDGET(pcontext.window), GTK_STATE_NORMAL, &color);
422    #endif
423    
424      gtk_window_move(GTK_WINDOW(pcontext.window),
425                      x + mcontext->widget->allocation.x + sx - ax,
426                      y + mcontext->widget->allocation.y + sy - ay);
427    
428    
429      GtkWidget *alignment = gtk_alignment_new(0.5, 0.5, 1.0, 1.0);
430      gtk_alignment_set_padding(GTK_ALIGNMENT(alignment),
431                                CORNER_RADIUS/2 + (ay?0:ARROW_BORDER),
432                                CORNER_RADIUS/2 + (ay?ARROW_BORDER:0),
433                                CORNER_RADIUS, CORNER_RADIUS);
434    
435      /* --- actual content ---- */
436      GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
437    
438      if(cache->id) {
439        GtkWidget *ihbox = gtk_hbox_new(FALSE, 0);
440    
441        gtk_box_pack_start(GTK_BOX(ihbox),
442           icon_get_widget(ICON_CACHE_TYPE, cache->type),
443           FALSE, FALSE, 5);
444    
445        gtk_box_pack_start_defaults(GTK_BOX(ihbox),
446                    gtk_label_big_left_new(cache->id));
447    
448        gtk_box_pack_start_defaults(GTK_BOX(vbox), ihbox);
449      }
450    
451      if(cache->name) {
452        GtkWidget *label = gtk_label_small_left_new(cache->name);
453        gtk_label_set_ellipsize(GTK_LABEL(label), PANGO_ELLIPSIZE_END);
454        gtk_box_pack_start_defaults(GTK_BOX(vbox), label);
455      }
456    
457      GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
458      if(cache->terrain) {
459        GtkWidget *ihbox = gtk_hbox_new(FALSE, 0);
460        gtk_box_pack_start(GTK_BOX(ihbox),
461           gtk_label_small_left_new(_("Terrain:")), FALSE, FALSE, 0);
462        gtk_box_pack_start(GTK_BOX(ihbox),
463           icon_get_widget(ICON_STARS, (int)(cache->terrain*2-2)),
464           FALSE, FALSE, 5);
465        gtk_box_pack_start_defaults(GTK_BOX(hbox), ihbox);
466      }
467    
468      if(cache->difficulty) {
469        GtkWidget *ihbox = gtk_hbox_new(FALSE, 0);
470        gtk_box_pack_start(GTK_BOX(ihbox),
471           gtk_label_small_left_new(_("Difficulty:")), FALSE, FALSE, 0);
472        gtk_box_pack_start(GTK_BOX(ihbox),
473           icon_get_widget(ICON_STARS, (int)(cache->difficulty*2-2)),
474           FALSE, FALSE, 5);
475        gtk_box_pack_start_defaults(GTK_BOX(hbox), ihbox);
476      }
477    
478      gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
479    
480      gtk_container_add(GTK_CONTAINER(alignment), vbox);
481      /* ----------------------- */
482    
483    
484      gtk_container_add(GTK_CONTAINER(pcontext.window), alignment);
485    
486      /* give window its shape */
487      popup_window_shape(pcontext.window, ax, ay);
488    
489      gtk_widget_show_all(pcontext.window);
490    
491      /* handle this popup until it's gone */
492    
493      pcontext.loop = g_main_loop_new(NULL, FALSE);
494    
495      GDK_THREADS_LEAVE();
496      g_main_loop_run(pcontext.loop);
497      GDK_THREADS_ENTER();
498    
499      g_main_loop_unref(pcontext.loop);
500    
501      printf("cache popup removed\n");
502    }
503    
504    static void
505    map_cachelist_nearest(cache_t *cache, pos_t *pos,
506                          cache_t **result, float *distance) {
507      while(cache) {
508        float dist =
509          pow(cache->pos.lat - pos->lat, 2) +
510          pow(cache->pos.lon - pos->lon, 2);
511    
512        if(!(dist > *distance)) {
513          *result = cache;
514          *distance = dist;
515        }
516    
517        cache = cache->next;
518      }
519    }
520    
521    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
522      cache_t *result = NULL;
523      float distance = NAN;
524    
525    #ifdef USE_MAEMO
526      if(!context->appdata->cur_gpx) {
527  #endif  #endif
528        /* search all geocaches */
529        gpx_t *gpx = context->appdata->gpx;
530        while(gpx) {
531          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
532          gpx = gpx->next;
533        }
534    #ifdef USE_MAEMO
535      } else {
536        map_cachelist_nearest(context->appdata->cur_gpx->cache,
537                              pos, &result, &distance);
538      }
539    #endif
540    
541      return result;
542    }
543    
544    /* translate between osm-gps-map positions and gpxview ones */
545    pos_t coord2pos(coord_t coo) {
546      pos_t pos;
547      pos.lat = RAD2DEG(coo.rlat);
548      pos.lon = RAD2DEG(coo.rlon);
549      return pos;
550    }
551    
552    static int dist2pixel(map_context_t *context, float km, float lat) {
553      gint zoom;
554      g_object_get(OSM_GPS_MAP(context->widget), "zoom", &zoom, NULL);
555    
556      /* world at zoom 1 == 512 pixels */
557      float m_per_pix =
558        cos(DEG2RAD(lat))*2*M_PI*EQ_RADIUS/(1<<(8+zoom));
559    
560      return 1000.0*km/m_per_pix;
561    }
562    
563    #define CLICK_FUZZ (24)
564    
565    static gboolean
566    on_map_button_press_event(GtkWidget *widget,
567                                GdkEventButton *event, map_context_t *context) {
568      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
569    
570      /* got a press event without release event? eat it! */
571      if(context->press_on != NULL) {
572        printf("PRESS: already\n");
573        return TRUE;
574      }
575    
576      pos_t pos =
577        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
578    
579      cache_t *nearest = map_closest(context, &pos);
580      if(nearest) {
581        float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
582        if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ)
583          context->press_on = nearest;
584      }
585    
586      return FALSE;
587    }
588    
589    static gboolean
590    on_map_button_release_event(GtkWidget *widget,
591                                GdkEventButton *event, map_context_t *context) {
592      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
593    
594      if(context->press_on) {
595        pos_t pos =
596          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
597    
598        cache_t *nearest = map_closest(context, &pos);
599        if(nearest && nearest == context->press_on) {
600          float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
601          if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ)
602            cache_popup(context, nearest);
603        }
604        context->press_on = NULL;
605      } else {
606        /* save new map position */
607        gfloat lat, lon;
608        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
609        context->appdata->map.pos.lat = lat;
610        context->appdata->map.pos.lon = lon;
611      }
612    
613      return FALSE;
614    }
615    
616    static void save_map_state(map_context_t *context) {
617      /* save map parameters */
618      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
619      gint zoom;
620      g_object_get(map, "zoom", &zoom, NULL);
621      context->appdata->map.zoom = zoom;
622    
623      gfloat lat, lon;
624      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
625      context->appdata->map.pos.lat = lat;
626      context->appdata->map.pos.lon = lon;
627    }
628    
629    #if MAEMO_VERSION_MAJOR == 5
630    static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
631      printf("destroy map view\n");
632    
633      save_map_state(context);
634    
635      /* restore cur_view */
636      context->appdata->cur_view = context->old_view;
637    
638      gtk_timeout_remove(context->handler_id);
639      g_free(context);
640    }
641    #endif
642    
643    void map(appdata_t *appdata) {
644      map_context_t *context = g_new0(map_context_t, 1);
645      context->appdata = appdata;
646    
647    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
648    
649    char *path = g_strdup_printf("%s/map/", appdata->image_path);    char *path = g_strdup_printf("%s/map/", appdata->image_path);
650      const char *proxy = get_proxy_uri(appdata);
651    
652    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
653                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,
                 "proxy-uri", get_proxy_uri(),  
654                  "tile-cache", path,                  "tile-cache", path,
655                    proxy?"proxy-uri":NULL, proxy,
656                   NULL);                   NULL);
657    
658    g_free(path);    g_free(path);
659    
660  #if 0    char *name = NULL;
661    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  #ifdef USE_MAEMO
662                     G_CALLBACK(on_map_button_release_event), &context);    if(!appdata->cur_gpx) {
663  #endif  #endif
664        /* draw all geocaches */
665        gpx_t *gpx = appdata->gpx;
666        while(gpx) {
667          map_draw_cachelist(context->widget, gpx->cache);
668          gpx = gpx->next;
669        }
670        name = g_strdup(_("all geocaches"));
671    #ifdef USE_MAEMO
672      } else {
673        map_draw_cachelist(context->widget, appdata->cur_gpx->cache);
674        name = g_strdup(appdata->cur_gpx->name);
675      }
676    #endif
677    
678      char *title = g_strdup_printf(_("Map - %s"), name);
679      g_free(name);
680    
681    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);  #if MAEMO_VERSION_MAJOR == 5
682      GtkWidget *window = hildon_stackable_window_new();
683      gtk_window_set_title(GTK_WINDOW(window), title);
684    #else
685      GtkWidget *dialog = gtk_dialog_new_with_buttons(title,
686                              GTK_WINDOW(appdata->window),
687                              GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
688                              GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
689                              NULL);
690    
691    #ifndef USE_MAEMO
692      gtk_window_set_default_size(GTK_WINDOW(dialog), 640, 480);
693    #else
694      gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);
695    #endif
696    #endif
697    
698      g_free(title);
699    
700      g_signal_connect(G_OBJECT(context->widget), "configure-event",
701                       G_CALLBACK(on_map_configure), context);
702    
703      g_signal_connect(G_OBJECT(context->widget), "button-press-event",
704                       G_CALLBACK(on_map_button_press_event), context);
705    
706      g_signal_connect(G_OBJECT(context->widget), "button-release-event",
707                       G_CALLBACK(on_map_button_release_event), context);
708    
709      gtk_box_pack_start_defaults(GTK_BOX(hbox), context->widget);
710    /* zoom button box */    /* zoom button box */
711    GtkWidget *vbox = gtk_vbox_new(FALSE,0);    GtkWidget *vbox = gtk_vbox_new(FALSE,0);
712    
713    context.zoomin =    context->zoomin =
714      map_add_button(GTK_STOCK_ZOOM_IN, G_CALLBACK(cb_map_zoomin),      map_add_button(GTK_STOCK_ZOOM_IN, G_CALLBACK(cb_map_zoomin),
715                     &context, _("Zoom in"));                     context, _("Zoom in"));
716    gtk_box_pack_start(GTK_BOX(vbox), context.zoomin, FALSE, FALSE, 0);    gtk_box_pack_start(GTK_BOX(vbox), context->zoomin, FALSE, FALSE, 0);
717    
718    context.zoomout =    context->zoomout =
719      map_add_button(GTK_STOCK_ZOOM_OUT, G_CALLBACK(cb_map_zoomout),      map_add_button(GTK_STOCK_ZOOM_OUT, G_CALLBACK(cb_map_zoomout),
720                     &context, _("Zoom out"));                     context, _("Zoom out"));
721    gtk_box_pack_start(GTK_BOX(vbox), context.zoomout, FALSE, FALSE, 0);    gtk_box_pack_start(GTK_BOX(vbox), context->zoomout, FALSE, FALSE, 0);
722    
723    context.gps =    context->gps =
724      map_add_button(GTK_STOCK_HOME, G_CALLBACK(cb_map_gps),      map_add_button(GTK_STOCK_HOME, G_CALLBACK(cb_map_gps),
725                     &context, _("Jump to GPS position"));                     context, _("Jump to GPS position"));
726    gtk_widget_set_sensitive(context.gps, FALSE);    gtk_widget_set_sensitive(context->gps, FALSE);
727    /* install handler for timed updates of the gps button */    /* install handler for timed updates of the gps button */
728    context.handler_id = gtk_timeout_add(1000, map_gps_update, &context);    context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
729    gtk_box_pack_start(GTK_BOX(vbox), context.gps, FALSE, FALSE, 0);    gtk_box_pack_start(GTK_BOX(vbox), context->gps, FALSE, FALSE, 0);
730    
731    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
732    
733    #if MAEMO_VERSION_MAJOR == 5
734      /* prevent some of the main screen things */
735      context->old_view = appdata->cur_view;
736      appdata->cur_view = NULL;
737    
738      g_signal_connect(G_OBJECT(window), "destroy",
739                       G_CALLBACK(on_window_destroy), context);
740    
741      gtk_container_add(GTK_CONTAINER(window), hbox);
742      gtk_widget_show_all(GTK_WIDGET(window));
743    
744    #else
745    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);
   
746    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);
   
747    gtk_widget_show_all(dialog);    gtk_widget_show_all(dialog);
   
748    gtk_dialog_run(GTK_DIALOG(dialog));    gtk_dialog_run(GTK_DIALOG(dialog));
749      save_map_state(context);
750      gtk_timeout_remove(context->handler_id);
751    gtk_widget_destroy(dialog);    gtk_widget_destroy(dialog);
752      g_free(context);
753    #endif
754  }  }
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