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

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revision 33 by harbaum, Tue Jul 28 13:21:40 2009 UTC revision 51 by harbaum, Wed Aug 12 12:16:05 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  }  }
124    
125  static GtkWidget  static GtkWidget
126  *map_add_button(const gchar *icon, GCallback cb, gpointer data,  *map_add_button(int icon, GCallback cb, gpointer data,
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), icon_get_widget(ICON_MISC, icon));
                        gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));  
130    g_signal_connect(button, "clicked", cb, data);    g_signal_connect(button, "clicked", cb, data);
131  #ifndef USE_MAEMO  #ifndef USE_MAEMO
132    gtk_widget_set_tooltip_text(button, tooltip);    gtk_widget_set_tooltip_text(button, tooltip);
# Line 103  static GtkWidget Line 137  static GtkWidget
137  static gboolean map_gps_update(gpointer data) {  static gboolean map_gps_update(gpointer data) {
138    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
139    
140    //  gtk_widget_set_sensitive(context->map.gps, gps_fix);    /* get reference position ... */
141      pos_t *refpos = get_pos(context->appdata);
142      gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
143    
144      /* ... and enable "goto" button if it's valid */
145      gtk_widget_set_sensitive(context->gps, ok);
146    
147      if(ok) {
148        float heading = context->appdata->use_gps?
149          gps_get_heading(context->appdata):NAN;
150    
151       osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
152                             refpos->lat, refpos->lon, heading);
153      } else
154        osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
155    
156    return TRUE;    return TRUE;
157  }  }
158    
159    static gboolean on_map_configure(GtkWidget *widget,
160                                     GdkEventConfigure *event,
161                                     map_context_t *context) {
162    
163      /* set default values if they are invalid */
164      if(!context->appdata->map.zoom ||
165         isnan(context->appdata->map.pos.lat) ||
166         isnan(context->appdata->map.pos.lon)) {
167        printf("no valid map position found\n");
168    
169        pos_t *refpos = get_pos(context->appdata);
170        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
171          /* use gps position if present */
172          context->appdata->map.pos = *refpos;
173          context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
174        } else {
175          /* use world map otherwise */
176          context->appdata->map.pos.lat = 0.0;
177          context->appdata->map.pos.lon = 0.0;
178          context->appdata->map.zoom = 1;
179        }
180      }
181    
182  void map(appdata_t *appdata) {    /* jump to initial position */
183    map_context_t context;    osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
184                                context->appdata->map.pos.lat,
185                                context->appdata->map.pos.lon,
186                                context->appdata->map.zoom);
187    
188      return FALSE;
189    }
190    
191    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),  static void map_draw_cachelist(GtkWidget *map, cache_t *cache) {
192                            GTK_WINDOW(appdata->window),    while(cache) {
193                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
194                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,  
195                            NULL);      osm_gps_map_add_image(OSM_GPS_MAP(map),
196                              cache->pos.lat, cache->pos.lon, icon);
197    
198        cache = cache->next;
199      }
200    }
201    
202    /* draw a nice popup */
203    typedef struct {
204      appdata_t *appdata;
205      GtkWidget *window;
206      GMainLoop *loop;
207    } popup_context_t;
208    
209    /* draw shape */
210    #define ARROW_BORDER   20
211    #define CORNER_RADIUS  10
212    
213  #ifndef USE_MAEMO  #ifndef USE_MAEMO
214    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);  #define POPUP_WIDTH  300
215    #define POPUP_HEIGHT 100
216  #else  #else
217    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);  #define POPUP_WIDTH  350
218    #define POPUP_HEIGHT 120
219    #endif
220    
221    static gboolean
222    pointer_in_window(GtkWidget *widget, gint x_root, gint y_root) {
223      if(GTK_WIDGET_MAPPED(gtk_widget_get_toplevel(widget))) {
224        gint window_x, window_y;
225    
226        gdk_window_get_position(gtk_widget_get_toplevel(widget)->window,
227                                &window_x, &window_y);
228    
229        if(x_root >= window_x && x_root < window_x + widget->allocation.width &&
230            y_root >= window_y && y_root < window_y + widget->allocation.height)
231          return TRUE;
232      }
233    
234      return FALSE;
235    }
236    
237    static gboolean
238    on_button_press_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 press (in = %d)\n", in);
243      return !in;
244    }
245    
246    static gboolean
247    on_button_release_event(GtkWidget *widget,
248                              GdkEventButton *event, popup_context_t *context) {
249      gboolean in = pointer_in_window(widget, event->x_root, event->y_root);
250    
251      printf("overlay button release (in = %d)\n", in);
252    
253      if(!in) {
254        printf("destroying popup\n");
255        gtk_widget_destroy(gtk_widget_get_toplevel(widget));
256      }
257    
258      return !in;
259    }
260    
261    static void
262    shutdown_loop(popup_context_t *context) {
263      if(g_main_loop_is_running(context->loop))
264        g_main_loop_quit(context->loop);
265    }
266    
267    static gint
268    run_delete_handler(GtkWindow *window, GdkEventAny *event,
269                       popup_context_t *context) {
270      shutdown_loop(context);
271      return TRUE; /* Do not destroy */
272    }
273    
274    static void
275    run_destroy_handler(GtkWindow *window, popup_context_t *context) {
276      /* shutdown_loop will be called by run_unmap_handler */
277      printf("popup destroyed\n");
278    }
279    
280    static void
281    run_unmap_handler(GtkWindow *window, popup_context_t *context) {
282      shutdown_loop(context);
283    }
284    
285    static void popup_window_shape(GtkWidget *window, int tip_x, int tip_y) {
286      GdkBitmap *mask = gdk_pixmap_new(NULL, POPUP_WIDTH, POPUP_HEIGHT, 1);
287    
288      GdkGC *gc = gdk_gc_new(mask);
289      GdkColormap *colormap;
290      GdkColor black;
291      GdkColor white;
292    
293      /* get black/white color values */
294      colormap = gdk_colormap_get_system();
295      gdk_color_black(colormap, &black);
296      gdk_color_white(colormap, &white);
297    
298      /* erase */
299      gdk_gc_set_foreground(gc, &black);
300      gdk_gc_set_background(gc, &white);
301    
302      /* erase background */
303      gdk_draw_rectangle(mask, gc, TRUE, 0, 0, POPUP_WIDTH, POPUP_HEIGHT);
304    
305      gdk_gc_set_foreground(gc, &white);
306      gdk_gc_set_background(gc, &black);
307    
308      /* the tip is always above or below the "bubble" but never at its side */
309      guint tip_offset = (tip_y == 0)?ARROW_BORDER:0;
310    
311      gdk_draw_rectangle(mask, gc, TRUE,
312                         0, tip_offset + CORNER_RADIUS,
313                         POPUP_WIDTH,
314                         POPUP_HEIGHT - 2*CORNER_RADIUS - ARROW_BORDER);
315    
316      gdk_draw_rectangle(mask, gc, TRUE,
317                         CORNER_RADIUS, tip_offset,
318                         POPUP_WIDTH  - 2*CORNER_RADIUS,
319                         POPUP_HEIGHT - ARROW_BORDER);
320    
321      int off[][2] = {
322              { CORNER_RADIUS,               tip_offset + CORNER_RADIUS },
323              { POPUP_WIDTH - CORNER_RADIUS, tip_offset + CORNER_RADIUS },
324              { POPUP_WIDTH - CORNER_RADIUS,
325                POPUP_HEIGHT - CORNER_RADIUS - ARROW_BORDER + tip_offset},
326              { CORNER_RADIUS,
327                POPUP_HEIGHT - CORNER_RADIUS  - ARROW_BORDER + tip_offset}};
328    
329      int i;
330      for(i=0;i<4;i++) {
331        gdk_draw_arc(mask, gc, TRUE,
332                     off[i][0]-CORNER_RADIUS, off[i][1]-CORNER_RADIUS,
333                     2*CORNER_RADIUS,         2*CORNER_RADIUS,
334                     0, 360*64);
335      }
336    
337      GdkPoint points[3] = { {POPUP_WIDTH*1/3, POPUP_HEIGHT/2},
338                             {POPUP_WIDTH*2/3, POPUP_HEIGHT/2},
339                             {tip_x,tip_y} };
340      gdk_draw_polygon(mask, gc, TRUE, points, 3);
341    
342    
343      gdk_window_shape_combine_mask(window->window, mask, 0, 0);
344    }
345    
346    /* create a left aligned label (normal ones are centered) */
347    static GtkWidget *gtk_label_left_new(char *str) {
348      GtkWidget *label = gtk_label_new(str);
349      gtk_misc_set_alignment(GTK_MISC(label), 0.f, .5f);
350      return label;
351    }
352    
353    /* the small labels are actually only on maemo small */
354    #ifdef USE_MAEMO
355    #define MARKUP_SMALL "<span size='small'>%s</span>"
356    GtkWidget *gtk_label_small_left_new(char *str) {
357      GtkWidget *label = gtk_label_new("");
358      char *markup = g_markup_printf_escaped(MARKUP_SMALL, str);
359      gtk_label_set_markup(GTK_LABEL(label), markup);
360      g_free(markup);
361      gtk_misc_set_alignment(GTK_MISC(label), 0.f, .5f);
362      return label;
363    }
364    #define gtk_label_big_left_new(a) gtk_label_left_new(a)
365    #else
366    #define gtk_label_small_left_new(a) gtk_label_left_new(a)
367    #define MARKUP_BIG "<span size='x-large'>%s</span>"
368    GtkWidget *gtk_label_big_left_new(char *str) {
369      GtkWidget *label = gtk_label_new("");
370      char *markup = g_markup_printf_escaped(MARKUP_BIG, str);
371      gtk_label_set_markup(GTK_LABEL(label), markup);
372      g_free(markup);
373      gtk_misc_set_alignment(GTK_MISC(label), 0.f, .5f);
374      return label;
375    }
376    #endif
377    
378    void cache_popup(map_context_t *mcontext, cache_t *cache) {
379      popup_context_t pcontext;
380      pcontext.appdata = mcontext->appdata;
381    
382      pcontext.window = gtk_window_new(GTK_WINDOW_POPUP);
383      gtk_widget_realize(pcontext.window);
384      gtk_window_set_default_size(GTK_WINDOW(pcontext.window),
385                                  POPUP_WIDTH, POPUP_HEIGHT);
386      gtk_window_resize(GTK_WINDOW(pcontext.window), POPUP_WIDTH, POPUP_HEIGHT);
387      //  gtk_window_set_resizable(GTK_WINDOW(pcontext.window), FALSE);
388      gtk_window_set_transient_for(GTK_WINDOW(pcontext.window),
389                                   GTK_WINDOW(mcontext->appdata->window));
390      gtk_window_set_keep_above(GTK_WINDOW(pcontext.window), TRUE);
391      gtk_window_set_destroy_with_parent(GTK_WINDOW(pcontext.window), TRUE);
392      gtk_window_set_gravity(GTK_WINDOW(pcontext.window), GDK_GRAVITY_STATIC);
393      gtk_window_set_modal(GTK_WINDOW(pcontext.window), TRUE);
394    
395      /* connect events */
396      g_signal_connect(G_OBJECT(pcontext.window), "button-press-event",
397                       G_CALLBACK(on_button_press_event), &pcontext);
398      g_signal_connect(G_OBJECT(pcontext.window), "button-release-event",
399                       G_CALLBACK(on_button_release_event), &pcontext);
400      g_signal_connect(G_OBJECT(pcontext.window), "delete-event",
401                       G_CALLBACK(run_delete_handler), &pcontext);
402      g_signal_connect(G_OBJECT(pcontext.window), "destroy",
403                       G_CALLBACK(run_destroy_handler), &pcontext);
404      g_signal_connect(G_OBJECT(pcontext.window), "unmap",
405                       G_CALLBACK(run_unmap_handler), &pcontext);
406    
407      gdk_pointer_grab(pcontext.window->window, TRUE,
408         GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_MOTION_MASK,
409                       NULL, NULL, GDK_CURRENT_TIME);
410      gtk_grab_add(pcontext.window);
411    
412      /* check whether cache is in upper or lower half of window */
413      gint x, y, sx, sy;
414      osm_gps_map_geographic_to_screen(OSM_GPS_MAP(mcontext->widget),
415                                       cache->pos.lat, cache->pos.lon,
416                                       &sx, &sy);
417    
418      gdk_window_get_origin(mcontext->widget->window, &x, &y);
419    
420      gint ax = 0, ay = 0;
421      if(sx > mcontext->widget->allocation.width/2)
422        ax = POPUP_WIDTH;
423    
424      if(sy > mcontext->widget->allocation.height/2)
425        ay = POPUP_HEIGHT;
426    
427    #if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
428      GdkColor color;
429      gdk_color_parse("darkgray", &color);
430      gtk_widget_modify_bg(GTK_WIDGET(pcontext.window), GTK_STATE_NORMAL, &color);
431    #endif
432    
433      gtk_window_move(GTK_WINDOW(pcontext.window),
434                      x + mcontext->widget->allocation.x + sx - ax,
435                      y + mcontext->widget->allocation.y + sy - ay);
436    
437    
438      GtkWidget *alignment = gtk_alignment_new(0.5, 0.5, 1.0, 1.0);
439      gtk_alignment_set_padding(GTK_ALIGNMENT(alignment),
440                                CORNER_RADIUS/2 + (ay?0:ARROW_BORDER),
441                                CORNER_RADIUS/2 + (ay?ARROW_BORDER:0),
442                                CORNER_RADIUS, CORNER_RADIUS);
443    
444      /* --- actual content ---- */
445      GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
446    
447      if(cache->id) {
448        GtkWidget *ihbox = gtk_hbox_new(FALSE, 0);
449    
450        gtk_box_pack_start(GTK_BOX(ihbox),
451           icon_get_widget(ICON_CACHE_TYPE, cache->type),
452           FALSE, FALSE, 5);
453    
454        gtk_box_pack_start_defaults(GTK_BOX(ihbox),
455                    gtk_label_big_left_new(cache->id));
456    
457        gtk_box_pack_start_defaults(GTK_BOX(vbox), ihbox);
458      }
459    
460      if(cache->name) {
461        GtkWidget *label = gtk_label_small_left_new(cache->name);
462        gtk_label_set_ellipsize(GTK_LABEL(label), PANGO_ELLIPSIZE_END);
463        gtk_box_pack_start_defaults(GTK_BOX(vbox), label);
464      }
465    
466      GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
467      if(cache->terrain) {
468        GtkWidget *ihbox = gtk_hbox_new(FALSE, 0);
469        gtk_box_pack_start(GTK_BOX(ihbox),
470           gtk_label_small_left_new(_("Terrain:")), FALSE, FALSE, 0);
471        gtk_box_pack_start(GTK_BOX(ihbox),
472           icon_get_widget(ICON_STARS, (int)(cache->terrain*2-2)),
473           FALSE, FALSE, 5);
474        gtk_box_pack_start_defaults(GTK_BOX(hbox), ihbox);
475      }
476    
477      if(cache->difficulty) {
478        GtkWidget *ihbox = gtk_hbox_new(FALSE, 0);
479        gtk_box_pack_start(GTK_BOX(ihbox),
480           gtk_label_small_left_new(_("Difficulty:")), FALSE, FALSE, 0);
481        gtk_box_pack_start(GTK_BOX(ihbox),
482           icon_get_widget(ICON_STARS, (int)(cache->difficulty*2-2)),
483           FALSE, FALSE, 5);
484        gtk_box_pack_start_defaults(GTK_BOX(hbox), ihbox);
485      }
486    
487      gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
488    
489      gtk_container_add(GTK_CONTAINER(alignment), vbox);
490      /* ----------------------- */
491    
492    
493      gtk_container_add(GTK_CONTAINER(pcontext.window), alignment);
494    
495      /* give window its shape */
496      popup_window_shape(pcontext.window, ax, ay);
497    
498      gtk_widget_show_all(pcontext.window);
499    
500      /* handle this popup until it's gone */
501    
502      pcontext.loop = g_main_loop_new(NULL, FALSE);
503    
504      GDK_THREADS_LEAVE();
505      g_main_loop_run(pcontext.loop);
506      GDK_THREADS_ENTER();
507    
508      g_main_loop_unref(pcontext.loop);
509    
510      printf("cache popup removed\n");
511    }
512    
513    static void
514    map_cachelist_nearest(cache_t *cache, pos_t *pos,
515                          cache_t **result, float *distance) {
516      while(cache) {
517        float dist =
518          pow(cache->pos.lat - pos->lat, 2) +
519          pow(cache->pos.lon - pos->lon, 2);
520    
521        if(!(dist > *distance)) {
522          *result = cache;
523          *distance = dist;
524        }
525    
526        cache = cache->next;
527      }
528    }
529    
530    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
531      cache_t *result = NULL;
532      float distance = NAN;
533    
534    #ifdef USE_MAEMO
535      if(!context->appdata->cur_gpx) {
536    #endif
537        /* search all geocaches */
538        gpx_t *gpx = context->appdata->gpx;
539        while(gpx) {
540          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
541          gpx = gpx->next;
542        }
543    #ifdef USE_MAEMO
544      } else {
545        map_cachelist_nearest(context->appdata->cur_gpx->cache,
546                              pos, &result, &distance);
547      }
548    #endif
549    
550      return result;
551    }
552    
553    /* translate between osm-gps-map positions and gpxview ones */
554    pos_t coord2pos(coord_t coo) {
555      pos_t pos;
556      pos.lat = RAD2DEG(coo.rlat);
557      pos.lon = RAD2DEG(coo.rlon);
558      return pos;
559    }
560    
561    static int dist2pixel(map_context_t *context, float km, float lat) {
562      gint zoom;
563      g_object_get(OSM_GPS_MAP(context->widget), "zoom", &zoom, NULL);
564    
565      /* world at zoom 1 == 512 pixels */
566      float m_per_pix =
567        cos(DEG2RAD(lat))*2*M_PI*EQ_RADIUS/(1<<(8+zoom));
568    
569      return 1000.0*km/m_per_pix;
570    }
571    
572    #define CLICK_FUZZ (24)
573    
574    static gboolean
575    on_map_button_press_event(GtkWidget *widget,
576                                GdkEventButton *event, map_context_t *context) {
577      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
578    
579      /* got a press event without release event? eat it! */
580      if(context->press_on != NULL) {
581        printf("PRESS: already\n");
582        return TRUE;
583      }
584    
585      pos_t pos =
586        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
587    
588      cache_t *nearest = map_closest(context, &pos);
589      if(nearest) {
590        float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
591        if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ)
592          context->press_on = nearest;
593      }
594    
595      return FALSE;
596    }
597    
598    static gboolean
599    on_map_button_release_event(GtkWidget *widget,
600                                GdkEventButton *event, map_context_t *context) {
601      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
602    
603      if(context->press_on) {
604        pos_t pos =
605          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
606    
607        cache_t *nearest = map_closest(context, &pos);
608        if(nearest && nearest == context->press_on) {
609          float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
610          if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ)
611            cache_popup(context, nearest);
612        }
613        context->press_on = NULL;
614      } else {
615        /* save new map position */
616        gfloat lat, lon;
617        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
618        context->appdata->map.pos.lat = lat;
619        context->appdata->map.pos.lon = lon;
620      }
621    
622      return FALSE;
623    }
624    
625    static void save_map_state(map_context_t *context) {
626      /* save map parameters */
627      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
628      gint zoom;
629      g_object_get(map, "zoom", &zoom, NULL);
630      context->appdata->map.zoom = zoom;
631    
632      gfloat lat, lon;
633      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
634      context->appdata->map.pos.lat = lat;
635      context->appdata->map.pos.lon = lon;
636    }
637    
638    #if MAEMO_VERSION_MAJOR == 5
639    static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
640      printf("destroy map view\n");
641    
642      save_map_state(context);
643    
644      /* restore cur_view */
645      context->appdata->cur_view = context->old_view;
646    
647      gtk_timeout_remove(context->handler_id);
648      g_free(context);
649    }
650  #endif  #endif
651    
652    void map(appdata_t *appdata) {
653      map_context_t *context = g_new0(map_context_t, 1);
654      context->appdata = appdata;
655    
656    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
657    
658    char *path = g_strdup_printf("%s/map/", appdata->image_path);    char *path = g_strdup_printf("%s/map/", appdata->image_path);
659      const char *proxy = get_proxy_uri(appdata);
660    
661    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
662                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "repo-uri",             MAP_SOURCE_OPENSTREETMAP,
663                  "proxy-uri", get_proxy_uri(),                   "tile-cache",           path,
664                  "tile-cache", path,                   "auto-center",          FALSE,
665                     "record-trip-history",  FALSE,
666                     "show-trip-history",    FALSE,
667                   NULL);                   NULL);
668    
669      if(proxy)
670        g_object_set(OSM_GPS_MAP(context->widget),
671                     "proxy-uri", proxy, NULL);
672    
673    g_free(path);    g_free(path);
674    
675  #if 0    char *name = NULL;
676    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  #ifdef USE_MAEMO
677                     G_CALLBACK(on_map_button_release_event), &context);    if(!appdata->cur_gpx) {
678    #endif
679        /* draw all geocaches */
680        gpx_t *gpx = appdata->gpx;
681        while(gpx) {
682          map_draw_cachelist(context->widget, gpx->cache);
683          gpx = gpx->next;
684        }
685        name = g_strdup(_("all geocaches"));
686    #ifdef USE_MAEMO
687      } else {
688        map_draw_cachelist(context->widget, appdata->cur_gpx->cache);
689        name = g_strdup(appdata->cur_gpx->name);
690      }
691    #endif
692    
693      char *title = g_strdup_printf(_("Map - %s"), name);
694      g_free(name);
695    
696    #if MAEMO_VERSION_MAJOR == 5
697      GtkWidget *window = hildon_stackable_window_new();
698      gtk_window_set_title(GTK_WINDOW(window), title);
699    #else
700      GtkWidget *dialog = gtk_dialog_new_with_buttons(title,
701                              GTK_WINDOW(appdata->window),
702                              GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
703                              GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
704                              NULL);
705    
706    #ifndef USE_MAEMO
707      gtk_window_set_default_size(GTK_WINDOW(dialog), 640, 480);
708    #else
709      gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);
710    #endif
711  #endif  #endif
712    
713    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);    g_free(title);
714    
715      g_signal_connect(G_OBJECT(context->widget), "configure-event",
716                       G_CALLBACK(on_map_configure), context);
717    
718      g_signal_connect(G_OBJECT(context->widget), "button-press-event",
719                       G_CALLBACK(on_map_button_press_event), context);
720    
721      g_signal_connect(G_OBJECT(context->widget), "button-release-event",
722                       G_CALLBACK(on_map_button_release_event), context);
723    
724      gtk_box_pack_start_defaults(GTK_BOX(hbox), context->widget);
725    /* zoom button box */    /* zoom button box */
726    GtkWidget *vbox = gtk_vbox_new(FALSE,0);    GtkWidget *vbox = gtk_vbox_new(FALSE,0);
727    
728    context.zoomin =    context->zoomin =
729      map_add_button(GTK_STOCK_ZOOM_IN, G_CALLBACK(cb_map_zoomin),      map_add_button(10, G_CALLBACK(cb_map_zoomin),
730                     &context, _("Zoom in"));                     context, _("Zoom in"));
731    gtk_box_pack_start(GTK_BOX(vbox), context.zoomin, FALSE, FALSE, 0);    gtk_box_pack_start(GTK_BOX(vbox), context->zoomin, FALSE, FALSE, 0);
732    
733    context.zoomout =    context->zoomout =
734      map_add_button(GTK_STOCK_ZOOM_OUT, G_CALLBACK(cb_map_zoomout),      map_add_button(11, G_CALLBACK(cb_map_zoomout),
735                     &context, _("Zoom out"));                     context, _("Zoom out"));
736    gtk_box_pack_start(GTK_BOX(vbox), context.zoomout, FALSE, FALSE, 0);    gtk_box_pack_start(GTK_BOX(vbox), context->zoomout, FALSE, FALSE, 0);
737    
738    context.gps =    context->gps =
739      map_add_button(GTK_STOCK_HOME, G_CALLBACK(cb_map_gps),      map_add_button(9, G_CALLBACK(cb_map_gps),
740                     &context, _("Jump to GPS position"));                     context, _("Jump to GPS position"));
741    gtk_widget_set_sensitive(context.gps, FALSE);    gtk_widget_set_sensitive(context->gps, FALSE);
742    /* install handler for timed updates of the gps button */    /* install handler for timed updates of the gps button */
743    context.handler_id = gtk_timeout_add(1000, map_gps_update, &context);    context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
744    gtk_box_pack_start(GTK_BOX(vbox), context.gps, FALSE, FALSE, 0);    gtk_box_pack_start(GTK_BOX(vbox), context->gps, FALSE, FALSE, 0);
745    
746    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
747    
748    #if MAEMO_VERSION_MAJOR == 5
749      /* prevent some of the main screen things */
750      context->old_view = appdata->cur_view;
751      appdata->cur_view = NULL;
752    
753      g_signal_connect(G_OBJECT(window), "destroy",
754                       G_CALLBACK(on_window_destroy), context);
755    
756      gtk_container_add(GTK_CONTAINER(window), hbox);
757      gtk_widget_show_all(GTK_WIDGET(window));
758    
759    #else
760    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);
   
761    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);
   
762    gtk_widget_show_all(dialog);    gtk_widget_show_all(dialog);
   
763    gtk_dialog_run(GTK_DIALOG(dialog));    gtk_dialog_run(GTK_DIALOG(dialog));
764      save_map_state(context);
765      gtk_timeout_remove(context->handler_id);
766    gtk_widget_destroy(dialog);    gtk_widget_destroy(dialog);
767      g_free(context);
768    #endif
769  }  }
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