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

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revision 33 by harbaum, Tue Jul 28 13:21:40 2009 UTC revision 152 by harbaum, Mon Nov 2 10:53:01 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 17  Line 17 
17   * along with GPXView.  If not, see <http://www.gnu.org/licenses/>.   * along with GPXView.  If not, see <http://www.gnu.org/licenses/>.
18   */   */
19    
20    /*
21     * http://topo.geofabrik.de/relief/${z}/${x}/${y}.png  8-15
22     * http://topo.geofabrik.de/trail/${z}/${x}/${y}.png   8-15
23     */
24    
25    /*
26     * TODO:
27     * - draw caches only once
28     * - prefer duplicates from selected files
29     * - make semi-transparent caches selectable
30     */
31    
32  #include "gpxview.h"  #include "gpxview.h"
33    #include "converter.h"
34    #include <math.h>    // for isnan
35    
36  #ifdef ENABLE_OSM_GPS_MAP  #ifdef ENABLE_OSM_GPS_MAP
37  #include "osm-gps-map.h"  #include "osm-gps-map.h"
38    #include "osm-gps-map-osd-classic.h"
39    #endif
40    
41    #if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5)
42    #include <gdk/gdkx.h>
43    #include <X11/Xatom.h>
44  #endif  #endif
45    
46  typedef struct {  /* default values */
47    GtkWidget *widget;  #define MAP_SOURCE  OSM_GPS_MAP_SOURCE_OPENCYCLEMAP
48    GtkWidget *zoomin, *zoomout, *gps;  #define GPS_DEFAULT_ZOOM 13
49    gint handler_id;  
50  } map_context_t;  #define PROXY_KEY  "/system/http_proxy/"
51    
52  static const char *get_proxy_uri(void) {  static const char *get_proxy_uri(appdata_t *appdata) {
53    static char proxy_buffer[64];    static char proxy_buffer[64] = "";
54    
55    /* use environment settings if preset */    /* use environment settings if preset */
56    const char *proxy = g_getenv("http_proxy");    const char *proxy = g_getenv("http_proxy");
# Line 39  static const char *get_proxy_uri(void) { Line 59  static const char *get_proxy_uri(void) {
59      return proxy;      return proxy;
60    }    }
61    
62  #if 0    /* ------------- get proxy settings -------------------- */
63    /* otherwise try settings */    if(gconf_client_get_bool(appdata->gconf_client,
64    if(!settings || !settings->proxy ||                             PROXY_KEY "use_http_proxy", NULL)) {
65       !settings->proxy->host) return NULL;  
66        /* we can savely ignore things like "ignore_hosts" since we */
67        /* are pretty sure not inside the net of one of our map renderers */
68        /* (unless the user works at google :-) */
69    
70        /* get basic settings */
71        char *host =
72          gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL);
73        if(host) {
74          int port =
75            gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL);
76    
77          snprintf(proxy_buffer, sizeof(proxy_buffer),
78                   "http://%s:%u", host, port);
79    
80          g_free(host);
81        }
82        return proxy_buffer;
83      }
84    
85    snprintf(proxy_buffer, sizeof(proxy_buffer), "%s%s:%u",    return NULL;
86             strncmp(settings->proxy->host, "http://", 7)?"http://":"",  }
            settings->proxy->host, settings->proxy->port);  
87    
88    proxy_buffer[sizeof(proxy_buffer)-1] = 0;  static void
89    printf("gconf_proxy: %s\n", proxy_buffer);  cb_map_gps(osd_button_t but, map_context_t *context) {
 #endif  
90    
91    return proxy_buffer;    if(but == OSD_GPS) {
92        pos_t *refpos = get_pos(context->appdata);
93        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
94          gint zoom;
95          g_object_get(OSM_GPS_MAP(context->widget), "zoom", &zoom, NULL);
96          if(zoom < 10)
97            osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
98                                      refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
99          else
100            osm_gps_map_set_center(OSM_GPS_MAP(context->widget),
101                                   refpos->lat, refpos->lon);
102    
103          /* re-enable centering */
104          g_object_set(context->widget, "auto-center", TRUE, NULL);
105        } else {
106          /* no coordinates given: display the entire world */
107          osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
108                                    0.0, 0.0, 1);
109        }
110      }
111  }  }
112    
113  static void map_zoom(map_context_t *context, int step) {  static int dist2pixel(map_context_t *context, float km, float lat) {
114    int zoom;    return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
115    OsmGpsMap *map = OSM_GPS_MAP(context->widget);  }
   g_object_get(map, "zoom", &zoom, NULL);  
   zoom = osm_gps_map_set_zoom(map, zoom+step);  
116    
117    /* enable/disable zoom buttons as required */  static gboolean map_gps_update(gpointer data) {
118    gtk_widget_set_sensitive(context->zoomin, zoom<17);    map_context_t *context = (map_context_t*)data;
119    gtk_widget_set_sensitive(context->zoomout, zoom>1);    static gboolean goto_is_enabled = FALSE;
120    
121      /* get reference position ... */
122      pos_t *refpos = get_pos(context->appdata);
123      gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
124    
125      /* ... and enable "goto" button if it's valid */
126      if(ok != goto_is_enabled) {
127        osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
128                    OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context);
129        goto_is_enabled = ok;
130      }
131    
132      if(ok) {
133        float heading = NAN;
134        int radius = 0;
135    
136        if(context->appdata->use_gps) {
137          heading = gps_get_heading(context->appdata);
138    
139          /* get error */
140          float eph = gps_get_eph(context->appdata);
141          if(!isnan(eph))
142            radius = dist2pixel(context, eph/1000, refpos->lat);
143        }
144    
145        /* TODO: in order to save energy: only draw if state actually changed */
146    
147        g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
148        osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
149                             refpos->lat, refpos->lon, heading);
150      } else
151        osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
152    
153      return TRUE;
154  }  }
155    
156  static gboolean  static void map_draw_cache(GtkWidget *map, cache_t *cache, gboolean semi) {
157  cb_map_zoomin(GtkButton *button, map_context_t *context) {    GdkPixbuf *icon = icon_get(semi?ICON_CACHE_TYPE_SEMI:ICON_CACHE_TYPE,
158    map_zoom(context, +1);                               cache->type);
159    
160      /* check if there's also an overwritten coordinate */
161      if(cache->notes && cache->notes->override) {
162        GdkPixbuf *over = icon_get(ICON_MISC, 1);
163    
164        osm_gps_map_add_image(OSM_GPS_MAP(map),
165              cache->notes->pos.lat, cache->notes->pos.lon, icon);
166    
167        osm_gps_map_add_image(OSM_GPS_MAP(map),
168              cache->notes->pos.lat, cache->notes->pos.lon, over);
169      } else {
170        if(!isnan(cache->pos.lat) && !isnan(cache->pos.lon))
171          osm_gps_map_add_image(OSM_GPS_MAP(map),
172                                cache->pos.lat, cache->pos.lon, icon);
173      }
174    }
175    
176    static void map_draw_gpx(appdata_t *appdata,
177                             GtkWidget *map, gpx_t *gpx,
178                             cache_t *nav, gboolean semi) {
179      if(!gpx->notes_loaded) {
180        notes_load_all(appdata, gpx);
181        gpx->notes_loaded = TRUE;
182      }
183    
184      cache_t *cache = gpx->cache;
185      while(cache) {
186        /* if nav is given draw all other caches semitransparent. */
187        /* if nav is not given do what semi sais */
188        map_draw_cache(map, cache, nav?(cache != nav):semi);
189        cache = cache->next;
190      }
191    }
192    
193    /* draw geocaches and set window title */
194    static void map_setup(map_context_t *context) {
195      char *name = NULL;
196    
197      int cache_num = gpx_total_caches_global(context->appdata->gpx);
198    
199      if(context->caches_displayed && (cache_num != context->cache_list_len)) {
200        g_free(context->caches_displayed);
201        context->caches_displayed = NULL;
202        context->cache_list_len = 0;
203      }
204    
205      /* allocate buffer */
206      if(cache_num) {
207        context->cache_list_len = cache_num;
208        context->caches_displayed = g_new0(cache_display_t, cache_num);
209        printf("allocated space to handle %d map icons\n", cache_num);
210      }
211    
212      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
213        if(context->state != MAP_ALL) {
214          printf("map_setup(ALL)\n");
215    
216    #ifdef OSD_NAV
217          /* no navigation in this mode */
218          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
219    #endif
220    
221          /* clear all existing cache images */
222          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
223    
224          /* draw all geocaches and none is semi-transparent */
225          gpx_t *gpx = context->appdata->gpx;
226          while(gpx) {
227            map_draw_gpx(context->appdata, context->widget, gpx, NULL, FALSE);
228            gpx = gpx->next;
229          }
230          name = g_strdup(_("all"));
231          context->state = MAP_ALL;
232        }
233      } else if(!context->appdata->cur_cache) {
234        if(context->state != MAP_GPX) {
235          printf("map_setup(GPX)\n");
236    
237    #ifdef OSD_NAV
238          /* no navigation in this mode */
239          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
240    #endif
241    
242          /* clear all existing ccahe images */
243          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
244    
245          /* draw all geocaches and all other gpx files are semi-transparent */
246          gpx_t *gpx = context->appdata->gpx;
247          while(gpx) {
248            map_draw_gpx(context->appdata, context->widget, gpx, NULL,
249                         gpx != context->appdata->cur_gpx);
250            gpx = gpx->next;
251          }
252    
253          name = g_strdup(context->appdata->cur_gpx->name);
254          context->state = MAP_GPX;
255        }
256      } else {
257        cache_t *cache = context->appdata->cur_cache;
258    
259        printf("map_setp(CACHE)\n");
260    
261        /* no balloons in this mode */
262        context->balloon = NULL;
263        osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
264    
265        /* clear all existing ccahe images */
266        osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
267    
268        /* draw all geocaches and all but selected one are semi-transparent */
269        gpx_t *gpx = context->appdata->gpx;
270        while(gpx) {
271          map_draw_gpx(context->appdata, context->widget, gpx, cache, FALSE);
272          gpx = gpx->next;
273        }
274    
275        name = g_strdup(cache->name);
276        context->state = MAP_CACHE;
277    
278        /* navigation in this mode! */
279        pos_t cpos = gpx_cache_pos(cache);
280    
281    #ifdef OSD_NAV
282        osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
283                                  context->appdata->imperial,
284                                  cpos.lat, cpos.lon, cache->name);
285    #else
286    #warning OSD_NAV not defined!
287    #endif
288      }
289    
290      if(name) {
291        char *title = g_strdup_printf(_("Map - %s"), name);
292        g_free(name);
293    
294        gtk_window_set_title(GTK_WINDOW(context->window), title);
295    
296        g_free(title);
297      } else
298        printf("map_setup(keep)\n");
299    }
300    
301    static gboolean on_map_configure(GtkWidget *widget,
302                                     GdkEventConfigure *event,
303                                     map_context_t *context) {
304    
305      /* for some reason there's a configure event with 1/1 */
306      /* on diablo. We just ignore this! */
307    
308      printf("on_map_configure %d %d\n",
309             widget->allocation.width,
310             widget->allocation.height);
311    
312      if(!context->map_complete &&
313         (widget->allocation.width > 100) &&
314         (widget->allocation.height > 100)) {
315    
316        /* setup cache state */
317        map_setup(context);
318    
319        /* set default values if they are invalid */
320        if(!context->appdata->map.zoom ||
321           isnan(context->appdata->map.pos.lat) ||
322           isnan(context->appdata->map.pos.lon)) {
323          printf("no valid map position found\n");
324    
325          pos_t *refpos = get_pos(context->appdata);
326          if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
327            printf("use refpos\n");
328    
329            /* use gps position if present */
330            context->appdata->map.pos = *refpos;
331            context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
332          } else {
333            printf("use zero pos\n");
334    
335            /* use world map otherwise */
336            context->appdata->map.pos.lat = 0.0;
337            context->appdata->map.pos.lon = 0.0;
338            context->appdata->map.zoom = 1;
339          }
340        }
341    
342        /* jump to initial position */
343        printf("osm_gps_map_set_mapcenter(%f,%f,%d)\n",
344               context->appdata->map.pos.lat,
345               context->appdata->map.pos.lon,
346               context->appdata->map.zoom);
347    
348        osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
349                                  context->appdata->map.pos.lat,
350                                  context->appdata->map.pos.lon,
351                                  context->appdata->map.zoom);
352        context->map_complete = TRUE;
353      }
354    
355    return FALSE;    return FALSE;
356  }  }
357    
358    static void
359    map_cachelist_nearest(cache_t *cache, pos_t *pos,
360                          cache_t **result, float *distance) {
361    
362      while(cache) {
363        pos_t cpos = gpx_cache_pos(cache);
364    
365        float dist =
366          pow(cpos.lat - pos->lat, 2) +
367          pow(cpos.lon - pos->lon, 2);
368    
369        if(!(dist > *distance)) {
370          *result = cache;
371          *distance = dist;
372        }
373    
374        cache = cache->next;
375      }
376    }
377    
378    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
379      cache_t *result = NULL;
380      float distance = NAN;
381    
382      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
383        /* search all geocaches */
384        gpx_t *gpx = context->appdata->gpx;
385        while(gpx) {
386          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
387          gpx = gpx->next;
388        }
389      } else if(context->appdata->cur_gpx) {
390        map_cachelist_nearest(context->appdata->cur_gpx->cache,
391                              pos, &result, &distance);
392      } else
393        result = context->appdata->cur_gpx->cache;
394    
395      return result;
396    }
397    
398    /* translate between osm-gps-map positions and gpxview ones */
399    pos_t coord2pos(coord_t coo) {
400      pos_t pos;
401      pos.lat = rad2deg(coo.rlat);
402      pos.lon = rad2deg(coo.rlon);
403      return pos;
404    }
405    
406    #define CLICK_FUZZ (24)
407    
408  static gboolean  static gboolean
409  cb_map_zoomout(GtkButton *button, map_context_t *context) {  on_map_button_press_event(GtkWidget *widget,
410    map_zoom(context, -1);                              GdkEventButton *event, map_context_t *context) {
411    
412      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
413    
414      /* check if we actually clicked parts of the OSD */
415      if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
416        return FALSE;
417    
418      /* got a press event without release event? eat it! */
419      if(context->press_on != NULL) {
420        printf("PRESS: already\n");
421        return FALSE;
422      }
423    
424      pos_t pos =
425        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
426    
427      cache_t *nearest = map_closest(context, &pos);
428      if(nearest) {
429        pos_t cpos = gpx_cache_pos(nearest);
430    
431        float dist = gpx_pos_get_distance(pos, cpos, FALSE);
432        if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
433          context->press_on = nearest;
434      }
435    
436    return FALSE;    return FALSE;
437  }  }
438    
439    static void
440    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
441      /* convert the pixbuf into something cairo can handle */
442    
443      // Create a new ImageSurface
444      cairo_surface_t *image_surface =
445        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
446                                   gdk_pixbuf_get_width(buf),
447                                   gdk_pixbuf_get_height(buf));
448    
449      // Create the new Context for the ImageSurface
450      g_assert(image_surface);
451      cairo_t *context = cairo_create(image_surface);
452    
453      // Draw the image on the new Context
454      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
455      cairo_paint(context);
456    
457      // now draw this onto the original context
458      cairo_set_source_surface(cr, image_surface, x, y);
459    
460      cairo_paint(cr);
461    }
462    
463    #ifndef BIG_BALLOONS
464    #define LINE_SKIP  7
465    #else
466    #define LINE_SKIP  12
467    #endif
468    
469    static void
470    balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
471      printf("balloon event: ");
472    
473      map_context_t *context = (map_context_t*)data;
474      cache_t *cache = context->balloon;
475    
476      if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
477        printf("draw\n");
478    
479    #if 0
480        /* draw pink background to check clipping */
481        cairo_rectangle (event->data.draw.cr,
482                         event->data.draw.rect->x-20, event->data.draw.rect->y-20,
483                         event->data.draw.rect->w+40, event->data.draw.rect->h+40);
484        cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
485        cairo_fill_preserve (event->data.draw.cr);
486        cairo_set_line_width (event->data.draw.cr, 0);
487        cairo_stroke (event->data.draw.cr);
488    #endif
489    
490        /* leave a little border top and left */
491        gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
492    
493        /* draw the cache type icon ... */
494        GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
495        cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
496    
497        if(cache->notes && cache->notes->override) {
498          GdkPixbuf *over = icon_get(ICON_MISC, 1);
499          cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
500        }
501    
502        /* ... and right of it the waypoint id */
503        cairo_text_extents_t extents;
504    
505        if(cache->id) {
506          cairo_select_font_face (event->data.draw.cr, "Sans",
507                                  CAIRO_FONT_SLANT_NORMAL,
508                                  CAIRO_FONT_WEIGHT_BOLD);
509    
510    #ifndef BIG_BALLOONS
511          cairo_set_font_size (event->data.draw.cr, 20.0);
512    #else
513          cairo_set_font_size (event->data.draw.cr, 36.0);
514    #endif
515    
516          cairo_text_extents (event->data.draw.cr, cache->id, &extents);
517    
518          /* display id right of icon vertically centered */
519          x += gdk_pixbuf_get_width(icon) + 5;
520          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
521          cairo_move_to (event->data.draw.cr, x, y);
522          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
523          cairo_show_text (event->data.draw.cr, cache->id);
524          cairo_stroke (event->data.draw.cr);
525    
526          y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
527        } else
528          y += gdk_pixbuf_get_height(icon);
529    
530        /* return to the left border and below icon/text */
531        x = event->data.draw.rect->x;
532    
533        /* everything from here uses the same font */
534        cairo_select_font_face (event->data.draw.cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
535                                CAIRO_FONT_WEIGHT_NORMAL);
536    #ifndef BIG_BALLOONS
537        cairo_set_font_size (event->data.draw.cr, 14.0);
538    #else
539        cairo_set_font_size (event->data.draw.cr, 22.0);
540    #endif
541    
542        if(cache->name) {
543          /* draw cache name */
544          cairo_text_extents (event->data.draw.cr, cache->name, &extents);
545          y += extents.height;
546          cairo_move_to (event->data.draw.cr, x, y);
547          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
548          cairo_show_text (event->data.draw.cr, cache->name);
549          cairo_stroke (event->data.draw.cr);
550    
551          /* return to the left border and below text */
552          y += LINE_SKIP;
553          x = event->data.draw.rect->x;
554        }
555    
556        if(cache->terrain) {
557          /* draw cache rating */
558          const char *terrain = "Terrain:";
559          icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
560          cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
561          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
562    
563          /* draw "Terrain:" string */
564          cairo_move_to (event->data.draw.cr, x, y);
565          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
566          cairo_show_text (event->data.draw.cr, _(terrain));
567          cairo_stroke (event->data.draw.cr);
568          x += extents.width + 2;
569    
570          /* draw terrain stars */
571          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y -
572                            (gdk_pixbuf_get_height(icon) + extents.height)/2);
573    
574          x += gdk_pixbuf_get_width(icon) + LINE_SKIP;
575        y -= (gdk_pixbuf_get_height(icon) + extents.height)/2;
576        }
577    
578        if(cache->difficulty) {
579          const char *difficulty = "Difficulty:";
580          cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
581          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
582    
583          /* draw "Difficulty:" string */
584          cairo_move_to (event->data.draw.cr, x, y);
585          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
586          cairo_show_text (event->data.draw.cr, _(difficulty));
587          cairo_stroke (event->data.draw.cr);
588          x += extents.width + 2;
589    
590          icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
591          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y -
592                          (gdk_pixbuf_get_height(icon) + extents.height)/2);
593        }
594      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
595        printf("click %s event at %d %d\n",
596               event->data.click.down?"down":"up",
597               event->data.click.x, event->data.click.y);
598    
599        /* make the main screen jump to that cache */
600        if(!event->data.click.down) {
601          if(context->appdata->cur_cache) {
602            printf("ERROR: no current cache should be visible!\n");
603          } else {
604            gpx_t *is_in = NULL;
605    
606            if(!context->appdata->cur_gpx) {
607              printf("click while in \"all\" view\n");
608    
609              /* we first need to figure out which gpx file this cache */
610              /* is in so we can open it first */
611              gpx_t *gpx = context->appdata->gpx;
612              while(gpx && !is_in) {
613                cache_t *cur = gpx->cache;
614                while(cur && !is_in) {
615                  if(cur == cache)
616                    is_in = gpx;
617                  cur = cur->next;
618                }
619                gpx = gpx->next;
620              }
621    
622              if(is_in)
623                gpxlist_goto_cachelist(context->appdata, is_in);
624    
625            } else
626              /* the simple case: there already is an open gpx file and */
627              /* we just jump into the "cache" view */
628              is_in = context->appdata->cur_gpx;
629    
630            if(is_in) {
631              printf("selecting %s in %s\n",
632                     cache->id,
633                     context->appdata->cur_gpx->name);
634    
635              cachelist_goto_cache(context->appdata, cache);
636    
637              /* give focus to main screen (important for maemo) */
638              printf("raising main window\n");
639              gtk_window_present(GTK_WINDOW(context->appdata->window));
640            }
641          }
642        }
643      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
644        printf("removed\n");
645        context->balloon = NULL;
646      }
647    }
648    
649  static gboolean  static gboolean
650  cb_map_gps(GtkButton *button, map_context_t *context) {  on_map_button_release_event(GtkWidget *widget,
651                                GdkEventButton *event, map_context_t *context) {
652      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
653    
654    //  osm_gps_map_set_center(OSM_GPS_MAP(context->widget),    /* in "MAP_CACHE" state only one cache is visible */
655    //                     DEG2RAD(pos.lat), DEG2RAD(pos.lon));    /* and the map is in navigation mode. the balloon is */
656      /* pretty useless there */
657      if(context->press_on && (context->state != MAP_CACHE)) {
658    
659        coord_t coo;
660        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
661    
662        pos_t pos =
663          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
664    
665        cache_t *nearest = map_closest(context, &pos);
666        if(nearest && nearest == context->press_on) {
667          pos_t cpos = gpx_cache_pos(nearest);
668    
669          float dist = gpx_pos_get_distance(pos, cpos, FALSE);
670          if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
671    
672            context->balloon = nearest;
673            osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
674                                         balloon_cb, context);
675          }
676        }
677        context->press_on = NULL;
678      } else {
679        /* save new map position */
680        gfloat lat, lon;
681        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
682        context->appdata->map.pos.lat = lat;
683        context->appdata->map.pos.lon = lon;
684      }
685    
686    return FALSE;    return FALSE;
687  }  }
688    
689  static GtkWidget  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
690  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    appdata_t *appdata = context->appdata;
691                  char *tooltip) {  
692    GtkWidget *button = gtk_button_new();    /* save map parameters */
693    gtk_button_set_image(GTK_BUTTON(button),    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
694                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));    gint zoom;
695    g_signal_connect(button, "clicked", cb, data);    g_object_get(map, "zoom", &zoom, NULL);
696  #ifndef USE_MAEMO    context->appdata->map.zoom = zoom;
697    gtk_widget_set_tooltip_text(button, tooltip);  
698      gfloat lat, lon;
699      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
700      context->appdata->map.pos.lat = lat;
701      context->appdata->map.pos.lon = lon;
702    
703      gint source;
704      g_object_get(map, "map-source", &source, NULL);
705      context->appdata->map.source = source;
706    
707    #if MAEMO_VERSION_MAJOR == 5
708      /* restore cur_view */
709      context->appdata->cur_view = context->old_view;
710  #endif  #endif
711    return button;  
712      gtk_timeout_remove(context->handler_id);
713      gps_unregister_callback(appdata, context->cb_id);
714    
715      if(context->caches_displayed) {
716        g_free(context->caches_displayed);
717        context->caches_displayed = NULL;
718      }
719    
720      g_free(context);
721      appdata->map.context = NULL;
722  }  }
723    
724  static gboolean map_gps_update(gpointer data) {  #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
725    map_context_t *context = (map_context_t*)data;  /* get access to zoom buttons */
726    static void
727    on_window_realize(GtkWidget *widget, gpointer data) {
728      if (widget->window) {
729        unsigned char value = 1;
730        Atom hildon_zoom_key_atom =
731          gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
732          integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
733        Display *dpy =
734          GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
735        Window w = GDK_WINDOW_XID(widget->window);
736    
737    //  gtk_widget_set_sensitive(context->map.gps, gps_fix);      XChangeProperty(dpy, w, hildon_zoom_key_atom,
738                        integer_atom, 8, PropModeReplace, &value, 1);
739      }
740    }
741    #endif
742    
743    return TRUE;  /* on maemo a window is either on top or completely invisible. this */
744    /* means that we only need to update the map window if its raised.  */
745    /* on ordinary desktops this is different and we always update */
746    
747    static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
748                             gpointer data) {
749      printf("map got focus\n");
750      map_setup((map_context_t*)data);
751      return FALSE;
752    }
753    
754    void map_update(appdata_t *appdata) {
755      printf("map_update\n");
756    #ifndef USE_MAEMO
757      if(appdata->map.context)
758        map_setup(appdata->map.context);
759    #endif
760  }  }
761    
762    /* callback called by the gps layer whenever gps state changes */
763    static void
764    gps_callback(struct gps_state *state, gpointer data) {
765      printf("map: gps callback\n");
766    }
767    
768  void map(appdata_t *appdata) {  void map(appdata_t *appdata) {
769    map_context_t context;    map_context_t *context = NULL;
770    
771    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),    /* if the map window already exists, just raise it */
772                            GTK_WINDOW(appdata->window),    if(appdata->map.context) {
773                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      printf("using existing map!\n");
774                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,      gtk_window_present(GTK_WINDOW(appdata->map.context->window));
775                            NULL);      map_setup(appdata->map.context);
776        return;
777      }
778    
779  #ifndef USE_MAEMO    context = appdata->map.context = g_new0(map_context_t, 1);
780    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    context->appdata = appdata;
781      context->map_complete = FALSE;
782      context->state = MAP_NONE;
783    
784      /* cleanup old (pre 0.8.7) path if it exists */
785      char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
786      if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
787        printf("old file path %s exists\n", old_path);
788        rmdir_recursive(old_path);
789      }
790    
791      /* It is recommanded that all applications share these same */
792      /* map path, so data is only cached once. The path should be: */
793      /* ~/.osm-gps-map on standard PC     (users home) */
794      /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
795      /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
796    #if !defined(USE_MAEMO)
797      char *p = getenv("HOME");
798      if(!p) p = "/tmp";
799      char *path = g_strdup_printf("%s/.osm-gps-map", p);
800    #else
801    #if MAEMO_VERSION_MAJOR == 5
802      char *path = g_strdup("/home/user/.osm-gps-map");
803  #else  #else
804    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);    char *path = g_strdup("/media/mmc2/osm-gps-map");
805    #endif
806  #endif  #endif
807    
808    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    const char *proxy = get_proxy_uri(appdata);
809    
810    char *path = g_strdup_printf("%s/map/", appdata->image_path);    gint source = context->appdata->map.source;
811      if(!source) source = MAP_SOURCE;
812    
813    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
814                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "map-source",               source,
815                  "proxy-uri", get_proxy_uri(),                   "tile-cache",               path,
816                  "tile-cache", path,                   "auto-center",              FALSE,
817                     "record-trip-history",      FALSE,
818                     "show-trip-history",        FALSE,
819                     proxy?"proxy-uri":NULL,     proxy,
820                   NULL);                   NULL);
821    
822    g_free(path);    g_free(path);
823    
824  #if 0    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
825    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  
826                     G_CALLBACK(on_map_button_release_event), &context);  #ifdef USE_MAEMO
827      /* we don't use a stackable window here on fremantle, since */
828      /* this leaves the main window independent from the map and */
829      /* the user can e.g. still navigate the main menu */
830      context->window = hildon_window_new();
831    
832    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
833      g_signal_connect(G_OBJECT(context->window), "realize",
834                       G_CALLBACK(on_window_realize), NULL);
835    #endif // MAEMO_VERSION
836    #else
837      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
838  #endif  #endif
839    
840    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);  #ifndef USE_MAEMO
841    /* zoom button box */    gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
842    GtkWidget *vbox = gtk_vbox_new(FALSE,0);  #endif
   
   context.zoomin =  
     map_add_button(GTK_STOCK_ZOOM_IN, G_CALLBACK(cb_map_zoomin),  
                    &context, _("Zoom in"));  
   gtk_box_pack_start(GTK_BOX(vbox), context.zoomin, FALSE, FALSE, 0);  
   
   context.zoomout =  
     map_add_button(GTK_STOCK_ZOOM_OUT, G_CALLBACK(cb_map_zoomout),  
                    &context, _("Zoom out"));  
   gtk_box_pack_start(GTK_BOX(vbox), context.zoomout, FALSE, FALSE, 0);  
   
   context.gps =  
     map_add_button(GTK_STOCK_HOME, G_CALLBACK(cb_map_gps),  
                    &context, _("Jump to GPS position"));  
   gtk_widget_set_sensitive(context.gps, FALSE);  
   /* install handler for timed updates of the gps button */  
   context.handler_id = gtk_timeout_add(1000, map_gps_update, &context);  
   gtk_box_pack_start(GTK_BOX(vbox), context.gps, FALSE, FALSE, 0);  
843    
844    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
845                       G_CALLBACK(on_focus_in), context);
846    
847    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    g_signal_connect(G_OBJECT(context->widget), "configure-event",
848                       G_CALLBACK(on_map_configure), context);
849    
850    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
851                       G_CALLBACK(on_map_button_press_event), context);
852    
853    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
854                       G_CALLBACK(on_map_button_release_event), context);
855    
856    gtk_dialog_run(GTK_DIALOG(dialog));    /* install handler for timed updates of the gps button */
857      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
858    gtk_widget_destroy(dialog);    context->cb_id = gps_register_callback(appdata, gps_callback, context);
859    
860    #if MAEMO_VERSION_MAJOR == 5
861      /* prevent some of the main screen things */
862      context->old_view = appdata->cur_view;
863      appdata->cur_view = NULL;
864    #endif
865    
866      g_signal_connect(G_OBJECT(context->window), "destroy",
867                       G_CALLBACK(on_window_destroy), context);
868    
869      gtk_container_add(GTK_CONTAINER(context->window), context->widget);
870      gtk_widget_show_all(GTK_WIDGET(context->window));
871  }  }
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Removed from v.33  
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  Added in v.152