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

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revision 35 by harbaum, Thu Jul 30 08:29:52 2009 UTC revision 161 by harbaum, Thu Nov 5 08:58:28 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  #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  #endif
40    
41  typedef struct {  #if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5)
42    appdata_t *appdata;  #include <gdk/gdkx.h>
43    GtkWidget *widget;  #include <X11/Xatom.h>
44    GtkWidget *zoomin, *zoomout, *gps;  #endif
45    gint handler_id;  
46  } map_context_t;  /* default values */
47    #define MAP_SOURCE  OSM_GPS_MAP_SOURCE_OPENCYCLEMAP
48    #define GPS_DEFAULT_ZOOM 13
49    
50  #define PROXY_KEY  "/system/http_proxy/"  #define PROXY_KEY  "/system/http_proxy/"
51    
# Line 39  static const char *get_proxy_uri(appdata Line 55  static const char *get_proxy_uri(appdata
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");
57    if(proxy) {    if(proxy) {
58      printf("http_proxy: %s\n", proxy);      printf("map http proxy from env: %s\n", proxy);
59      return proxy;      return proxy;
60    }    }
61    
# Line 60  static const char *get_proxy_uri(appdata Line 76  static const char *get_proxy_uri(appdata
76    
77        snprintf(proxy_buffer, sizeof(proxy_buffer),        snprintf(proxy_buffer, sizeof(proxy_buffer),
78                 "http://%s:%u", host, port);                 "http://%s:%u", host, port);
79          printf("map http proxy from gconf: %s\n ", proxy_buffer);
80    
81        g_free(host);        g_free(host);
82      }      }
# Line 69  static const char *get_proxy_uri(appdata Line 86  static const char *get_proxy_uri(appdata
86    return NULL;    return NULL;
87  }  }
88    
89  static void map_zoom(map_context_t *context, int step) {  static void
90    int zoom;  cb_map_gps(osd_button_t but, map_context_t *context) {
   OsmGpsMap *map = OSM_GPS_MAP(context->widget);  
   g_object_get(map, "zoom", &zoom, NULL);  
   zoom = osm_gps_map_set_zoom(map, zoom+step);  
91    
92    /* enable/disable zoom buttons as required */    if(but == OSD_GPS) {
93    gtk_widget_set_sensitive(context->zoomin, zoom<17);      pos_t *refpos = get_pos(context->appdata);
94    gtk_widget_set_sensitive(context->zoomout, zoom>1);      if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
95          gint zoom;
96          g_object_get(OSM_GPS_MAP(context->widget), "zoom", &zoom, NULL);
97          if(zoom < 10)
98            osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
99                                      refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
100          else
101            osm_gps_map_set_center(OSM_GPS_MAP(context->widget),
102                                   refpos->lat, refpos->lon);
103    
104          /* re-enable centering */
105          g_object_set(context->widget, "auto-center", TRUE, NULL);
106        } else {
107          /* no coordinates given: display the entire world */
108          osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
109                                    0.0, 0.0, 1);
110        }
111      }
112  }  }
113    
114  static gboolean  static int dist2pixel(map_context_t *context, float km, float lat) {
115  cb_map_zoomin(GtkButton *button, map_context_t *context) {    return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
116    map_zoom(context, +1);  }
117    
118    static gboolean map_gps_update(gpointer data) {
119      map_context_t *context = (map_context_t*)data;
120      static gboolean goto_is_enabled = FALSE;
121    
122      /* get reference position ... */
123      pos_t *refpos = get_pos(context->appdata);
124      gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
125    
126      /* ... and enable "goto" button if it's valid */
127      if(ok != goto_is_enabled) {
128        osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
129                    OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context);
130        goto_is_enabled = ok;
131      }
132    
133      if(ok) {
134        float heading = NAN;
135        int radius = 0;
136    
137        if(context->appdata->use_gps) {
138          heading = gps_get_heading(context->appdata);
139    
140          /* get error */
141          float eph = gps_get_eph(context->appdata);
142          if(!isnan(eph))
143            radius = dist2pixel(context, eph/1000, refpos->lat);
144        }
145    
146        /* TODO: in order to save energy: only draw if state actually changed */
147    
148        g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
149        osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
150                             refpos->lat, refpos->lon, heading);
151      } else
152        osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
153    
154      return TRUE;
155    }
156    
157    static void map_draw_cache(GtkWidget *map, cache_t *cache, gboolean semi) {
158      GdkPixbuf *icon = icon_get(semi?ICON_CACHE_TYPE_SEMI:ICON_CACHE_TYPE,
159                                 cache->type);
160    
161      /* check if there's also an overwritten coordinate */
162      if(cache->notes && cache->notes->override) {
163        GdkPixbuf *over = icon_get(ICON_MISC, 1);
164    
165        osm_gps_map_add_image(OSM_GPS_MAP(map),
166              cache->notes->pos.lat, cache->notes->pos.lon, icon);
167    
168        osm_gps_map_add_image(OSM_GPS_MAP(map),
169              cache->notes->pos.lat, cache->notes->pos.lon, over);
170      } else {
171        if(!isnan(cache->pos.lat) && !isnan(cache->pos.lon))
172          osm_gps_map_add_image(OSM_GPS_MAP(map),
173                                cache->pos.lat, cache->pos.lon, icon);
174      }
175    }
176    
177    static void map_draw_gpx(appdata_t *appdata, cache_display_t *caches,
178                             GtkWidget *map, gpx_t *gpx,
179                             cache_t *nav, gboolean semi) {
180      if(!gpx->notes_loaded) {
181        notes_load_all(appdata, gpx);
182        gpx->notes_loaded = TRUE;
183      }
184    
185      cache_t *cache = gpx->cache;
186      while(cache) {
187        /* search if we have that cache already in our list/displayed */
188        int i=0;
189        while(caches[i].id && (strcmp(caches[i].id, cache->id) != 0))
190          i++;
191    
192        if(!caches[i].id) {
193          /* if nav is given draw all other caches semitransparent. */
194          /* if nav is not given do what semi sais */
195          map_draw_cache(map, cache, nav?(cache != nav):semi);
196          caches[i].id = cache->id;
197        }
198    
199        cache = cache->next;
200      }
201    }
202    
203    /* draw geocaches and set window title */
204    static void map_setup(map_context_t *context) {
205      char *name = NULL;
206    
207      int cache_num = gpx_total_caches_global(context->appdata->gpx);
208    
209      if(context->caches_displayed && (cache_num != context->cache_list_len)) {
210        //    printf("re-alloc because %p %d/%d\n", context->caches_displayed,
211        //     cache_num, context->cache_list_len);
212        g_free(context->caches_displayed);
213        context->caches_displayed = NULL;
214        context->cache_list_len = 0;
215      }
216    
217      /* allocate buffer */
218      if(cache_num && !context->caches_displayed) {
219        context->cache_list_len = cache_num;
220        context->caches_displayed = g_new0(cache_display_t, cache_num+1);
221        printf("allocated space to handle %d map icons\n", cache_num);
222      }
223    
224      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
225        if(context->state != MAP_ALL) {
226          printf("map_setup(ALL)\n");
227    
228    #ifdef OSD_NAV
229          /* no navigation in this mode */
230          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
231    #endif
232    
233          /* clear all existing cache images */
234          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
235          memset(context->caches_displayed, 0,
236                 (cache_num+1) * sizeof(cache_display_t));
237    
238          /* draw all geocaches and none is semi-transparent */
239          gpx_t *gpx = context->appdata->gpx;
240          while(gpx) {
241            map_draw_gpx(context->appdata, context->caches_displayed,
242                         context->widget, gpx, NULL, FALSE);
243            gpx = gpx->next;
244          }
245    
246          {
247            int i=0;
248            while(context->caches_displayed[i].id) i++;
249            printf("number of caches actually displayed: %d\n", i);
250          }
251    
252          name = g_strdup(_("all"));
253          context->state = MAP_ALL;
254        }
255      } else if(!context->appdata->cur_cache) {
256        if(context->state != MAP_GPX) {
257          printf("map_setup(GPX)\n");
258    
259    #ifdef OSD_NAV
260          /* no navigation in this mode */
261          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
262    #endif
263    
264          /* clear all existing ccahe images */
265          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
266          memset(context->caches_displayed, 0,
267                 (cache_num+1) * sizeof(cache_display_t));
268    
269          /* draw all geocaches and all other gpx files are semi-transparent */
270          map_draw_gpx(context->appdata, context->caches_displayed,
271                       context->widget, context->appdata->cur_gpx, NULL, FALSE);
272    
273          gpx_t *gpx = context->appdata->gpx;
274          while(gpx) {
275            if(gpx != context->appdata->cur_gpx)
276              map_draw_gpx(context->appdata, context->caches_displayed,
277                           context->widget, gpx, NULL, TRUE);
278    
279            gpx = gpx->next;
280          }
281    
282          name = g_strdup(context->appdata->cur_gpx->name);
283          context->state = MAP_GPX;
284        }
285      } else {
286        cache_t *cache = context->appdata->cur_cache;
287    
288        printf("map_setup(CACHE)\n");
289    
290        /* no balloons in this mode */
291        context->balloon = NULL;
292        osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
293    
294        /* clear all existing ccahe images */
295        osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
296        memset(context->caches_displayed, 0,
297               (cache_num+1) * sizeof(cache_display_t));
298    
299        /* draw all geocaches and all but selected one are semi-transparent */
300        gpx_t *gpx = context->appdata->gpx;
301        while(gpx) {
302          map_draw_gpx(context->appdata, context->caches_displayed,
303                       context->widget, gpx, cache, FALSE);
304          gpx = gpx->next;
305        }
306    
307        name = g_strdup(cache->name);
308        context->state = MAP_CACHE;
309    
310        /* navigation in this mode! */
311        pos_t cpos = gpx_cache_pos(cache);
312    
313    #ifdef OSD_NAV
314        osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
315                                  context->appdata->imperial,
316                                  cpos.lat, cpos.lon, cache->name);
317    #else
318    #warning OSD_NAV not defined!
319    #endif
320      }
321    
322      if(name) {
323        char *title = g_strdup_printf(_("Map - %s"), name);
324        g_free(name);
325    
326        gtk_window_set_title(GTK_WINDOW(context->window), title);
327    
328        g_free(title);
329      } else
330        printf("map_setup(keep)\n");
331    }
332    
333    static gboolean on_map_configure(GtkWidget *widget,
334                                     GdkEventConfigure *event,
335                                     map_context_t *context) {
336    
337      /* for some reason there's a configure event with 1/1 */
338      /* on diablo. We just ignore this! */
339    
340      printf("on_map_configure %d %d\n",
341             widget->allocation.width,
342             widget->allocation.height);
343    
344      if(!context->map_complete &&
345         (widget->allocation.width > 100) &&
346         (widget->allocation.height > 100)) {
347    
348        /* setup cache state */
349        map_setup(context);
350    
351        /* set default values if they are invalid */
352        if(!context->appdata->map.zoom ||
353           isnan(context->appdata->map.pos.lat) ||
354           isnan(context->appdata->map.pos.lon)) {
355          printf("no valid map position found\n");
356    
357          pos_t *refpos = get_pos(context->appdata);
358          if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
359            printf("use refpos\n");
360    
361            /* use gps position if present */
362            context->appdata->map.pos = *refpos;
363            context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
364          } else {
365            printf("use zero pos\n");
366    
367            /* use world map otherwise */
368            context->appdata->map.pos.lat = 0.0;
369            context->appdata->map.pos.lon = 0.0;
370            context->appdata->map.zoom = 1;
371          }
372        }
373    
374        /* jump to initial position */
375        printf("osm_gps_map_set_mapcenter(%f,%f,%d)\n",
376               context->appdata->map.pos.lat,
377               context->appdata->map.pos.lon,
378               context->appdata->map.zoom);
379    
380        osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
381                                  context->appdata->map.pos.lat,
382                                  context->appdata->map.pos.lon,
383                                  context->appdata->map.zoom);
384        context->map_complete = TRUE;
385      }
386    
387    return FALSE;    return FALSE;
388  }  }
389    
390    static void
391    map_cachelist_nearest(cache_t *cache, pos_t *pos,
392                          cache_t **result, float *distance) {
393    
394      while(cache) {
395        pos_t cpos = gpx_cache_pos(cache);
396    
397        float dist =
398          pow(cpos.lat - pos->lat, 2) +
399          pow(cpos.lon - pos->lon, 2);
400    
401        if(!(dist > *distance)) {
402          *result = cache;
403          *distance = dist;
404        }
405    
406        cache = cache->next;
407      }
408    }
409    
410    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
411      cache_t *result = NULL;
412      float distance = NAN;
413    
414      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
415        /* search all geocaches */
416        gpx_t *gpx = context->appdata->gpx;
417        while(gpx) {
418          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
419          gpx = gpx->next;
420        }
421      } else if(context->appdata->cur_gpx) {
422        map_cachelist_nearest(context->appdata->cur_gpx->cache,
423                              pos, &result, &distance);
424      } else
425        result = context->appdata->cur_gpx->cache;
426    
427      return result;
428    }
429    
430    /* translate between osm-gps-map positions and gpxview ones */
431    pos_t coord2pos(coord_t coo) {
432      pos_t pos;
433      pos.lat = rad2deg(coo.rlat);
434      pos.lon = rad2deg(coo.rlon);
435      return pos;
436    }
437    
438    #define CLICK_FUZZ (24)
439    
440  static gboolean  static gboolean
441  cb_map_zoomout(GtkButton *button, map_context_t *context) {  on_map_button_press_event(GtkWidget *widget,
442    map_zoom(context, -1);                              GdkEventButton *event, map_context_t *context) {
443    
444      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
445    
446      /* check if we actually clicked parts of the OSD */
447      if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
448        return FALSE;
449    
450      /* got a press event without release event? eat it! */
451      if(context->press_on != NULL) {
452        printf("PRESS: already\n");
453        return FALSE;
454      }
455    
456      pos_t pos =
457        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
458    
459      cache_t *nearest = map_closest(context, &pos);
460      if(nearest) {
461        pos_t cpos = gpx_cache_pos(nearest);
462    
463        float dist = gpx_pos_get_distance(pos, cpos, FALSE);
464        if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
465          context->press_on = nearest;
466      }
467    
468    return FALSE;    return FALSE;
469  }  }
470    
471    static void
472    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
473      /* convert the pixbuf into something cairo can handle */
474    
475      // Create a new ImageSurface
476      cairo_surface_t *image_surface =
477        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
478                                   gdk_pixbuf_get_width(buf),
479                                   gdk_pixbuf_get_height(buf));
480    
481      // Create the new Context for the ImageSurface
482      g_assert(image_surface);
483      cairo_t *context = cairo_create(image_surface);
484    
485      // Draw the image on the new Context
486      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
487      cairo_paint(context);
488    
489      // now draw this onto the original context
490      cairo_set_source_surface(cr, image_surface, x, y);
491    
492      cairo_paint(cr);
493    }
494    
495    #ifndef BIG_BALLOONS
496    #define LINE_SKIP  7
497    #else
498    #define LINE_SKIP  12
499    #endif
500    
501    static void
502    balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
503      printf("balloon event: ");
504    
505      map_context_t *context = (map_context_t*)data;
506      cache_t *cache = context->balloon;
507    
508      if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
509        printf("draw\n");
510    
511    #if 0
512        /* draw pink background to check clipping */
513        cairo_rectangle (event->data.draw.cr,
514                         event->data.draw.rect->x-20, event->data.draw.rect->y-20,
515                         event->data.draw.rect->w+40, event->data.draw.rect->h+40);
516        cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
517        cairo_fill_preserve (event->data.draw.cr);
518        cairo_set_line_width (event->data.draw.cr, 0);
519        cairo_stroke (event->data.draw.cr);
520    #endif
521    
522        /* leave a little border top and left */
523        gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
524    
525        /* draw the cache type icon ... */
526        GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
527        cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
528    
529        if(cache->notes && cache->notes->override) {
530          GdkPixbuf *over = icon_get(ICON_MISC, 1);
531          cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
532        }
533    
534        /* ... and right of it the waypoint id */
535        cairo_text_extents_t extents;
536    
537        if(cache->id) {
538          cairo_select_font_face (event->data.draw.cr, "Sans",
539                                  CAIRO_FONT_SLANT_NORMAL,
540                                  CAIRO_FONT_WEIGHT_BOLD);
541    
542    #ifndef BIG_BALLOONS
543          cairo_set_font_size (event->data.draw.cr, 20.0);
544    #else
545          cairo_set_font_size (event->data.draw.cr, 36.0);
546    #endif
547    
548          cairo_text_extents (event->data.draw.cr, cache->id, &extents);
549    
550          /* display id right of icon vertically centered */
551          x += gdk_pixbuf_get_width(icon) + 5;
552          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
553          cairo_move_to (event->data.draw.cr, x, y);
554          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
555          cairo_show_text (event->data.draw.cr, cache->id);
556          cairo_stroke (event->data.draw.cr);
557    
558          y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
559        } else
560          y += gdk_pixbuf_get_height(icon);
561    
562        /* return to the left border and below icon/text */
563        x = event->data.draw.rect->x;
564    
565        /* everything from here uses the same font */
566        cairo_select_font_face (event->data.draw.cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
567                                CAIRO_FONT_WEIGHT_NORMAL);
568    #ifndef BIG_BALLOONS
569        cairo_set_font_size (event->data.draw.cr, 14.0);
570    #else
571        cairo_set_font_size (event->data.draw.cr, 22.0);
572    #endif
573    
574        if(cache->name) {
575          /* draw cache name */
576          cairo_text_extents (event->data.draw.cr, cache->name, &extents);
577          y += extents.height;
578          cairo_move_to (event->data.draw.cr, x, y);
579          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
580          cairo_show_text (event->data.draw.cr, cache->name);
581          cairo_stroke (event->data.draw.cr);
582    
583          /* return to the left border and below text */
584          y += LINE_SKIP;
585          x = event->data.draw.rect->x;
586        }
587    
588        if(cache->terrain) {
589          /* draw cache rating */
590          const char *terrain = "Terrain:";
591          icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
592          cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
593          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
594    
595          /* draw "Terrain:" string */
596          cairo_move_to (event->data.draw.cr, x, y);
597          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
598          cairo_show_text (event->data.draw.cr, _(terrain));
599          cairo_stroke (event->data.draw.cr);
600          x += extents.width + 2;
601    
602          /* draw terrain stars */
603          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y -
604                            (gdk_pixbuf_get_height(icon) + extents.height)/2);
605    
606          x += gdk_pixbuf_get_width(icon) + LINE_SKIP;
607        y -= (gdk_pixbuf_get_height(icon) + extents.height)/2;
608        }
609    
610        if(cache->difficulty) {
611          const char *difficulty = "Difficulty:";
612          cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
613          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
614    
615          /* draw "Difficulty:" string */
616          cairo_move_to (event->data.draw.cr, x, y);
617          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
618          cairo_show_text (event->data.draw.cr, _(difficulty));
619          cairo_stroke (event->data.draw.cr);
620          x += extents.width + 2;
621    
622          icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
623          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y -
624                          (gdk_pixbuf_get_height(icon) + extents.height)/2);
625        }
626      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
627        printf("click %s event at %d %d\n",
628               event->data.click.down?"down":"up",
629               event->data.click.x, event->data.click.y);
630    
631        /* make the main screen jump to that cache */
632        if(!event->data.click.down) {
633          if(context->appdata->cur_cache) {
634            printf("ERROR: no current cache should be visible!\n");
635          } else {
636            gpx_t *is_in = NULL;
637    
638            if(!context->appdata->cur_gpx) {
639              printf("click while in \"all\" view\n");
640    
641              /* we first need to figure out which gpx file this cache */
642              /* is in so we can open it first */
643              gpx_t *gpx = context->appdata->gpx;
644              while(gpx && !is_in) {
645                cache_t *cur = gpx->cache;
646                while(cur && !is_in) {
647                  if(cur == cache)
648                    is_in = gpx;
649                  cur = cur->next;
650                }
651                gpx = gpx->next;
652              }
653    
654              if(is_in)
655                gpxlist_goto_cachelist(context->appdata, is_in);
656    
657            } else
658              /* the simple case: there already is an open gpx file and */
659              /* we just jump into the "cache" view */
660              is_in = context->appdata->cur_gpx;
661    
662            if(is_in) {
663              printf("selecting %s in %s\n",
664                     cache->id,
665                     context->appdata->cur_gpx->name);
666    
667              cachelist_goto_cache(context->appdata, cache);
668    
669              /* give focus to main screen (important for maemo) */
670              printf("raising main window\n");
671              gtk_window_present(GTK_WINDOW(context->appdata->window));
672            }
673          }
674        }
675      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
676        printf("removed\n");
677        context->balloon = NULL;
678      }
679    }
680    
681  static gboolean  static gboolean
682  cb_map_gps(GtkButton *button, map_context_t *context) {  on_map_button_release_event(GtkWidget *widget,
683    pos_t *refpos = get_pos(context->appdata);                              GdkEventButton *event, map_context_t *context) {
684    if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
685      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),  
686                                refpos->lat, refpos->lon, 14);    /* in "MAP_CACHE" state only one cache is visible */
687      /* and the map is in navigation mode. the balloon is */
688      /* pretty useless there */
689      if(context->press_on && (context->state != MAP_CACHE)) {
690    
691        coord_t coo;
692        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
693    
694        pos_t pos =
695          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
696    
697        cache_t *nearest = map_closest(context, &pos);
698        if(nearest && nearest == context->press_on) {
699          pos_t cpos = gpx_cache_pos(nearest);
700    
701          float dist = gpx_pos_get_distance(pos, cpos, FALSE);
702          if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
703    
704            context->balloon = nearest;
705            osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
706                                         balloon_cb, context);
707          }
708        }
709        context->press_on = NULL;
710    } else {    } else {
711      /* no coordinates given: display the entire world */      /* save new map position */
712      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),      gfloat lat, lon;
713                                0.0, 0.0, 1);      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
714        context->appdata->map.pos.lat = lat;
715        context->appdata->map.pos.lon = lon;
716    }    }
717    
718    return FALSE;    return FALSE;
719  }  }
720    
721  static GtkWidget  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
722  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    appdata_t *appdata = context->appdata;
723                  char *tooltip) {  
724    GtkWidget *button = gtk_button_new();    /* save map parameters */
725    gtk_button_set_image(GTK_BUTTON(button),    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
726                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));    gint zoom;
727    g_signal_connect(button, "clicked", cb, data);    g_object_get(map, "zoom", &zoom, NULL);
728  #ifndef USE_MAEMO    context->appdata->map.zoom = zoom;
   gtk_widget_set_tooltip_text(button, tooltip);  
 #endif  
   return button;  
 }  
729    
730  static gboolean map_gps_update(gpointer data) {    gfloat lat, lon;
731    map_context_t *context = (map_context_t*)data;    g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
732      context->appdata->map.pos.lat = lat;
733      context->appdata->map.pos.lon = lon;
734    
735      gint source;
736      g_object_get(map, "map-source", &source, NULL);
737      context->appdata->map.source = source;
738    
739    #if MAEMO_VERSION_MAJOR == 5
740      /* restore cur_view */
741      context->appdata->cur_view = context->old_view;
742    #endif
743    
744    pos_t *refpos = get_pos(context->appdata);    gtk_timeout_remove(context->handler_id);
745    gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);    gps_unregister_callback(appdata, context->cb_id);
746    
747    /* get reference position and go there */    if(context->caches_displayed) {
748    gtk_widget_set_sensitive(context->gps, ok);      g_free(context->caches_displayed);
749        context->caches_displayed = NULL;
750      }
751    
752    return TRUE;    g_free(context);
753      appdata->map.context = NULL;
754  }  }
755    
756  static gboolean on_map_configure(GtkWidget *widget,  #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
757                                   GdkEventConfigure *event,  /* get access to zoom buttons */
758                                   map_context_t *context) {  static void
759    on_window_realize(GtkWidget *widget, gpointer data) {
760      if (widget->window) {
761        unsigned char value = 1;
762        Atom hildon_zoom_key_atom =
763          gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
764          integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
765        Display *dpy =
766          GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
767        Window w = GDK_WINDOW_XID(widget->window);
768    
769    cb_map_gps(NULL, context);      XChangeProperty(dpy, w, hildon_zoom_key_atom,
770                        integer_atom, 8, PropModeReplace, &value, 1);
771      }
772    }
773    #endif
774    
775    /* on maemo a window is either on top or completely invisible. this */
776    /* means that we only need to update the map window if its raised.  */
777    /* on ordinary desktops this is different and we always update */
778    
779    static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
780                             gpointer data) {
781      printf("map got focus\n");
782      map_setup((map_context_t*)data);
783    return FALSE;    return FALSE;
784    }
785    
786    void map_update(appdata_t *appdata) {
787      printf("map_update\n");
788    #ifndef USE_MAEMO
789      if(appdata->map.context)
790        map_setup(appdata->map.context);
791    #endif
792    }
793    
794    /* callback called by the gps layer whenever gps state changes */
795    static void
796    gps_callback(struct gps_state *state, gpointer data) {
797      printf("map: gps callback\n");
798  }  }
799    
800  void map(appdata_t *appdata) {  void map(appdata_t *appdata) {
801    map_context_t context;    map_context_t *context = NULL;
   context.appdata = appdata;  
802    
803    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),    /* if the map window already exists, just raise it */
804                            GTK_WINDOW(appdata->window),    if(appdata->map.context) {
805                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      printf("using existing map!\n");
806                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,      gtk_window_present(GTK_WINDOW(appdata->map.context->window));
807                            NULL);      map_setup(appdata->map.context);
808        return;
809      }
810    
811  #ifndef USE_MAEMO    context = appdata->map.context = g_new0(map_context_t, 1);
812    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    context->appdata = appdata;
813      context->map_complete = FALSE;
814      context->state = MAP_NONE;
815    
816      /* cleanup old (pre 0.8.7) path if it exists */
817      char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
818      if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
819        printf("old file path %s exists\n", old_path);
820        rmdir_recursive(old_path);
821      }
822    
823      /* It is recommanded that all applications share these same */
824      /* map path, so data is only cached once. The path should be: */
825      /* ~/.osm-gps-map on standard PC     (users home) */
826      /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
827      /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
828    #if !defined(USE_MAEMO)
829      char *p = getenv("HOME");
830      if(!p) p = "/tmp";
831      char *path = g_strdup_printf("%s/.osm-gps-map", p);
832    #else
833    #if MAEMO_VERSION_MAJOR == 5
834      char *path = g_strdup("/home/user/.osm-gps-map");
835  #else  #else
836    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);    char *path = g_strdup("/media/mmc2/osm-gps-map");
837    #endif
838  #endif  #endif
839    
   GtkWidget *hbox = gtk_hbox_new(FALSE, 0);  
   
   char *path = g_strdup_printf("%s/map/", appdata->image_path);  
840    const char *proxy = get_proxy_uri(appdata);    const char *proxy = get_proxy_uri(appdata);
841    
842    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    gint source = context->appdata->map.source;
843                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,    if(!source) source = MAP_SOURCE;
844                  "tile-cache", path,  
845                  proxy?"proxy-uri":NULL, proxy,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
846                     "map-source",               source,
847                     "tile-cache",               path,
848                     "auto-center",              FALSE,
849                     "record-trip-history",      FALSE,
850                     "show-trip-history",        FALSE,
851                     proxy?"proxy-uri":NULL,     proxy,
852                   NULL);                   NULL);
853    
854    g_free(path);    g_free(path);
855    
856    g_signal_connect(G_OBJECT(context.widget), "configure-event",    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
857                     G_CALLBACK(on_map_configure), &context);  
858  #if 0  #ifdef USE_MAEMO
859    g_signal_connect(G_OBJECT(context.widget), "button-release-event",    /* we don't use a stackable window here on fremantle, since */
860                     G_CALLBACK(on_map_button_release_event), &context);    /* this leaves the main window independent from the map and */
861      /* the user can e.g. still navigate the main menu */
862      context->window = hildon_window_new();
863    
864    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
865      g_signal_connect(G_OBJECT(context->window), "realize",
866                       G_CALLBACK(on_window_realize), NULL);
867    #endif // MAEMO_VERSION
868    #else
869      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
870  #endif  #endif
871    
872    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);  #ifndef USE_MAEMO
873    /* zoom button box */    gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
874    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);  
875    
876    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
877                       G_CALLBACK(on_focus_in), context);
878    
879    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    g_signal_connect(G_OBJECT(context->widget), "configure-event",
880                       G_CALLBACK(on_map_configure), context);
881    
882    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
883                       G_CALLBACK(on_map_button_press_event), context);
884    
885    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
886                       G_CALLBACK(on_map_button_release_event), context);
887    
888    gtk_dialog_run(GTK_DIALOG(dialog));    /* install handler for timed updates of the gps button */
889      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
890    gtk_timeout_remove(context.handler_id);    context->cb_id = gps_register_callback(appdata, gps_callback, context);
891    
892    #if MAEMO_VERSION_MAJOR == 5
893      /* prevent some of the main screen things */
894      context->old_view = appdata->cur_view;
895      appdata->cur_view = NULL;
896    #endif
897    
898      g_signal_connect(G_OBJECT(context->window), "destroy",
899                       G_CALLBACK(on_window_destroy), context);
900    
901    gtk_widget_destroy(dialog);    gtk_container_add(GTK_CONTAINER(context->window), context->widget);
902      gtk_widget_show_all(GTK_WIDGET(context->window));
903  }  }
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  Added in v.161