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

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revision 34 by harbaum, Wed Jul 29 19:24:15 2009 UTC revision 189 by harbaum, Tue Nov 17 09:07:17 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      }      }
83        return proxy_buffer;
84    }    }
85    
86    return proxy_buffer;    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      int type = semi?ICON_CACHE_TYPE_SEMI:ICON_CACHE_TYPE;
159    
160      GdkPixbuf *icon = icon_get(type, cache->type);
161    
162      /* check if there's also an overwritten coordinate */
163      if(cache->notes && cache->notes->override) {
164        GdkPixbuf *over = icon_get(type, 11);
165    
166        osm_gps_map_add_image(OSM_GPS_MAP(map),
167              cache->notes->pos.lat, cache->notes->pos.lon, icon);
168    
169        osm_gps_map_add_image(OSM_GPS_MAP(map),
170              cache->notes->pos.lat, cache->notes->pos.lon, over);
171      } else {
172        if(!isnan(cache->pos.lat) && !isnan(cache->pos.lon))
173          osm_gps_map_add_image(OSM_GPS_MAP(map),
174                                cache->pos.lat, cache->pos.lon, icon);
175      }
176    }
177    
178    static void map_draw_gpx(appdata_t *appdata, cache_display_t *caches,
179                             GtkWidget *map, gpx_t *gpx,
180                             cache_t *nav, gboolean semi) {
181      if(!gpx->notes_loaded) {
182        notes_load_all(appdata, gpx);
183        gpx->notes_loaded = TRUE;
184      }
185    
186      cache_t *cache = gpx->cache;
187      while(cache) {
188        /* search if we have that cache already in our list/displayed */
189        int i=0;
190        while(caches[i].id && (strcmp(caches[i].id, cache->id) != 0))
191          i++;
192    
193        if(!caches[i].id) {
194          /* if nav is given draw all other caches semitransparent. */
195          /* if nav is not given do what semi sais */
196          map_draw_cache(map, cache, nav?(cache != nav):semi);
197          caches[i].id = cache->id;
198        }
199    
200        cache = cache->next;
201      }
202    }
203    
204    /* draw geocaches and set window title */
205    static void map_setup(map_context_t *context) {
206      char *name = NULL;
207    
208      int cache_num = gpx_total_caches_global(context->appdata->gpx);
209    
210      if(context->caches_displayed && (cache_num != context->cache_list_len)) {
211        //    printf("re-alloc because %p %d/%d\n", context->caches_displayed,
212        //     cache_num, context->cache_list_len);
213        g_free(context->caches_displayed);
214        context->caches_displayed = NULL;
215        context->cache_list_len = 0;
216      }
217    
218      /* allocate buffer */
219      if(cache_num && !context->caches_displayed) {
220        context->cache_list_len = cache_num;
221        context->caches_displayed = g_new0(cache_display_t, cache_num+1);
222        printf("allocated space to handle %d map icons\n", cache_num);
223      }
224    
225      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
226        if(context->state != MAP_ALL) {
227          printf("map_setup(ALL)\n");
228    
229    #ifdef OSD_NAV
230          /* no navigation in this mode */
231          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
232    #endif
233    
234          /* clear all existing cache images */
235          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
236          memset(context->caches_displayed, 0,
237                 (cache_num+1) * sizeof(cache_display_t));
238    
239          /* draw all geocaches and none is semi-transparent */
240          gpx_t *gpx = context->appdata->gpx;
241          while(gpx) {
242            map_draw_gpx(context->appdata, context->caches_displayed,
243                         context->widget, gpx, NULL, FALSE);
244            gpx = gpx->next;
245          }
246    
247          {
248            int i=0;
249            while(context->caches_displayed[i].id) i++;
250            printf("number of caches actually displayed: %d\n", i);
251          }
252    
253          name = g_strdup(_("all"));
254          context->state = MAP_ALL;
255        }
256      } else if(!context->appdata->cur_cache) {
257        if(context->state != MAP_GPX) {
258          printf("map_setup(GPX)\n");
259    
260    #ifdef OSD_NAV
261          /* no navigation in this mode */
262          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
263    #endif
264    
265          /* clear all existing ccahe images */
266          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
267          memset(context->caches_displayed, 0,
268                 (cache_num+1) * sizeof(cache_display_t));
269    
270          /* draw all geocaches and all other gpx files are semi-transparent */
271          map_draw_gpx(context->appdata, context->caches_displayed,
272                       context->widget, context->appdata->cur_gpx, NULL, FALSE);
273    
274          gpx_t *gpx = context->appdata->gpx;
275          while(gpx) {
276            if(gpx != context->appdata->cur_gpx)
277              map_draw_gpx(context->appdata, context->caches_displayed,
278                           context->widget, gpx, NULL, TRUE);
279    
280            gpx = gpx->next;
281          }
282    
283          name = g_strdup(context->appdata->cur_gpx->name);
284          context->state = MAP_GPX;
285        }
286      } else {
287        cache_t *cache = context->appdata->cur_cache;
288    
289        printf("map_setup(CACHE)\n");
290    
291        /* no balloons in this mode */
292        context->balloon = NULL;
293        osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
294    
295        /* clear all existing ccahe images */
296        osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
297        memset(context->caches_displayed, 0,
298               (cache_num+1) * sizeof(cache_display_t));
299    
300        /* draw all geocaches and all but selected one are semi-transparent */
301        gpx_t *gpx = context->appdata->gpx;
302        while(gpx) {
303          map_draw_gpx(context->appdata, context->caches_displayed,
304                       context->widget, gpx, cache, FALSE);
305          gpx = gpx->next;
306        }
307    
308        name = g_strdup(cache->name);
309        context->state = MAP_CACHE;
310    
311        /* navigation in this mode! */
312        pos_t cpos = gpx_cache_pos(cache);
313    
314    #ifdef OSD_NAV
315        osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
316                                  context->appdata->imperial,
317                                  cpos.lat, cpos.lon, cache->name);
318    #else
319    #warning OSD_NAV not defined!
320    #endif
321      }
322    
323      if(name) {
324        char *title = g_strdup_printf(_("Map - %s"), name);
325        g_free(name);
326    
327        gtk_window_set_title(GTK_WINDOW(context->window), title);
328    
329        g_free(title);
330      } else
331        printf("map_setup(keep)\n");
332    }
333    
334    static gboolean on_map_configure(GtkWidget *widget,
335                                     GdkEventConfigure *event,
336                                     map_context_t *context) {
337    
338      /* for some reason there's a configure event with 1/1 */
339      /* on diablo. We just ignore this! */
340    
341      printf("on_map_configure %d %d\n",
342             widget->allocation.width,
343             widget->allocation.height);
344    
345      if(!context->map_complete &&
346         (widget->allocation.width > 100) &&
347         (widget->allocation.height > 100)) {
348    
349        /* setup cache state */
350        map_setup(context);
351    
352        /* set default values if they are invalid */
353        if(!context->appdata->map.zoom ||
354           isnan(context->appdata->map.pos.lat) ||
355           isnan(context->appdata->map.pos.lon)) {
356          printf("no valid map position found\n");
357    
358          pos_t *refpos = get_pos(context->appdata);
359          if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
360            printf("use refpos\n");
361    
362            /* use gps position if present */
363            context->appdata->map.pos = *refpos;
364            context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
365          } else {
366            printf("use zero pos\n");
367    
368            /* use world map otherwise */
369            context->appdata->map.pos.lat = 0.0;
370            context->appdata->map.pos.lon = 0.0;
371            context->appdata->map.zoom = 1;
372          }
373        }
374    
375        /* jump to initial position */
376        printf("osm_gps_map_set_mapcenter(%f,%f,%d)\n",
377               context->appdata->map.pos.lat,
378               context->appdata->map.pos.lon,
379               context->appdata->map.zoom);
380    
381        osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
382                                  context->appdata->map.pos.lat,
383                                  context->appdata->map.pos.lon,
384                                  context->appdata->map.zoom);
385        context->map_complete = TRUE;
386      }
387    
388    return FALSE;    return FALSE;
389  }  }
390    
391    static void
392    map_cachelist_nearest(cache_t *cache, pos_t *pos,
393                          cache_t **result, float *distance) {
394    
395      while(cache) {
396        pos_t cpos = gpx_cache_pos(cache);
397    
398        float dist =
399          pow(cpos.lat - pos->lat, 2) +
400          pow(cpos.lon - pos->lon, 2);
401    
402        if(!(dist > *distance)) {
403          *result = cache;
404          *distance = dist;
405        }
406    
407        cache = cache->next;
408      }
409    }
410    
411    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
412      cache_t *result = NULL;
413      float distance = NAN;
414    
415      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
416        /* search all geocaches */
417        gpx_t *gpx = context->appdata->gpx;
418        while(gpx) {
419          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
420          gpx = gpx->next;
421        }
422      } else if(context->appdata->cur_gpx) {
423        map_cachelist_nearest(context->appdata->cur_gpx->cache,
424                              pos, &result, &distance);
425      } else
426        result = context->appdata->cur_gpx->cache;
427    
428      return result;
429    }
430    
431    /* translate between osm-gps-map positions and gpxview ones */
432    pos_t coord2pos(coord_t coo) {
433      pos_t pos;
434      pos.lat = rad2deg(coo.rlat);
435      pos.lon = rad2deg(coo.rlon);
436      return pos;
437    }
438    
439    #define CLICK_FUZZ (24)
440    
441  static gboolean  static gboolean
442  cb_map_zoomout(GtkButton *button, map_context_t *context) {  on_map_button_press_event(GtkWidget *widget,
443    map_zoom(context, -1);                              GdkEventButton *event, map_context_t *context) {
444    
445      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
446    
447      /* check if we actually clicked parts of the OSD */
448      if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
449        return FALSE;
450    
451      /* got a press event without release event? eat it! */
452      if(context->press_on != NULL) {
453        printf("PRESS: already\n");
454        return FALSE;
455      }
456    
457      pos_t pos =
458        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
459    
460      cache_t *nearest = map_closest(context, &pos);
461      if(nearest) {
462        pos_t cpos = gpx_cache_pos(nearest);
463    
464        float dist = gpx_pos_get_distance(pos, cpos, FALSE);
465        if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
466          context->press_on = nearest;
467      }
468    
469    return FALSE;    return FALSE;
470  }  }
471    
472  #define DEG2RAD(a)  ((a) * M_PI / 180.0)  static void
473    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
474      /* convert the pixbuf into something cairo can handle */
475    
476      // Create a new ImageSurface
477      cairo_surface_t *image_surface =
478        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
479                                   gdk_pixbuf_get_width(buf),
480                                   gdk_pixbuf_get_height(buf));
481    
482      // Create the new Context for the ImageSurface
483      g_assert(image_surface);
484      cairo_t *context = cairo_create(image_surface);
485    
486      // Draw the image on the new Context
487      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
488      cairo_paint(context);
489    
490      // now draw this onto the original context
491      cairo_set_source_surface(cr, image_surface, x, y);
492    
493      cairo_paint(cr);
494    }
495    
496    #ifndef BIG_BALLOONS
497    #define ICON_SIZE  ICON_CACHE_TYPE
498    #define LINE_SKIP  7
499    #else
500    #define ICON_SIZE  ICON_CACHE_TYPE_1_5X
501    #define LINE_SKIP  12
502    #endif
503    
504    static void
505    balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
506      printf("balloon event: ");
507    
508      map_context_t *context = (map_context_t*)data;
509      cache_t *cache = context->balloon;
510    
511      if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
512        printf("draw\n");
513    
514    #if 0
515        /* draw pink background to check clipping */
516        cairo_rectangle (event->data.draw.cr,
517                         event->data.draw.rect->x-20, event->data.draw.rect->y-20,
518                         event->data.draw.rect->w+40, event->data.draw.rect->h+40);
519        cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
520        cairo_fill_preserve (event->data.draw.cr);
521        cairo_set_line_width (event->data.draw.cr, 0);
522        cairo_stroke (event->data.draw.cr);
523    #endif
524    
525        /* leave a little border top and left */
526        gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
527    
528        /* draw the cache type icon ... */
529        GdkPixbuf *icon = icon_get(ICON_SIZE, cache->type);
530        cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
531    
532        if(cache->notes && cache->notes->override) {
533          GdkPixbuf *over = icon_get(ICON_SIZE, 11);
534          cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
535        }
536    
537        /* ... and right of it the waypoint id */
538        cairo_text_extents_t extents;
539    
540        if(cache->id) {
541          cairo_select_font_face (event->data.draw.cr, "Sans",
542                                  CAIRO_FONT_SLANT_NORMAL,
543                                  CAIRO_FONT_WEIGHT_BOLD);
544    
545    #ifndef BIG_BALLOONS
546          cairo_set_font_size (event->data.draw.cr, 20.0);
547    #else
548          cairo_set_font_size (event->data.draw.cr, 36.0);
549    #endif
550    
551          cairo_text_extents (event->data.draw.cr, cache->id, &extents);
552    
553          /* display id right of icon vertically centered */
554          x += gdk_pixbuf_get_width(icon) + 5;
555          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
556          cairo_move_to (event->data.draw.cr, x, y);
557          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
558          cairo_show_text (event->data.draw.cr, cache->id);
559          cairo_stroke (event->data.draw.cr);
560    
561          y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
562        } else
563          y += gdk_pixbuf_get_height(icon);
564    
565        /* return to the left border and below icon/text */
566        x = event->data.draw.rect->x;
567    
568        /* everything from here uses the same font */
569        cairo_select_font_face (event->data.draw.cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
570                                CAIRO_FONT_WEIGHT_NORMAL);
571    #ifndef BIG_BALLOONS
572    #define FONT_SIZE 14.0
573    #else
574    #define FONT_SIZE 22.0
575    #endif
576    
577        cairo_set_font_size (event->data.draw.cr, FONT_SIZE);
578    
579        if(cache->name) {
580          /* draw cache name */
581          cairo_text_extents (event->data.draw.cr, cache->name, &extents);
582          y += extents.height;
583          cairo_move_to (event->data.draw.cr, x, y);
584          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
585          cairo_show_text (event->data.draw.cr, cache->name);
586          cairo_stroke (event->data.draw.cr);
587    
588          /* return to the left border and below text */
589          y += LINE_SKIP;
590          x = event->data.draw.rect->x;
591        }
592    
593        if(cache->terrain) {
594          int text_y = 0, icon_y = 0;
595    
596          /* draw cache rating */
597          const char *terrain = "Terrain:";
598          icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
599          cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
600    
601          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
602            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
603          else
604            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
605    
606          /* draw "Terrain:" string */
607          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
608          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
609          cairo_show_text (event->data.draw.cr, _(terrain));
610          cairo_stroke (event->data.draw.cr);
611          x += extents.width + 2;
612    
613          /* draw terrain stars */
614          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
615    
616          x += gdk_pixbuf_get_width(icon) + LINE_SKIP - 2;
617        }
618    
619        if(cache->difficulty) {
620          int text_y = 0, icon_y = 0;
621    
622          const char *difficulty = "Difficulty:";
623          icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
624          cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
625    
626          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
627            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
628          else
629            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
630    
631          /* draw "Difficulty:" string */
632          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
633          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
634          cairo_show_text (event->data.draw.cr, _(difficulty));
635          cairo_stroke (event->data.draw.cr);
636          x += extents.width + 2;
637    
638          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
639        }
640      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
641        printf("click %s event at %d %d\n",
642               event->data.click.down?"down":"up",
643               event->data.click.x, event->data.click.y);
644    
645        /* make the main screen jump to that cache */
646        if(!event->data.click.down) {
647          if(context->appdata->cur_cache) {
648            printf("ERROR: no current cache should be visible!\n");
649          } else {
650            gpx_t *is_in = NULL;
651    
652            if(!context->appdata->cur_gpx) {
653              printf("click while in \"all\" view\n");
654    
655              /* we first need to figure out which gpx file this cache */
656              /* is in so we can open it first */
657              gpx_t *gpx = context->appdata->gpx;
658              while(gpx && !is_in) {
659                cache_t *cur = gpx->cache;
660                while(cur && !is_in) {
661                  if(cur == cache)
662                    is_in = gpx;
663                  cur = cur->next;
664                }
665                gpx = gpx->next;
666              }
667    
668              if(is_in)
669                gpxlist_goto_cachelist(context->appdata, is_in);
670    
671            } else
672              /* the simple case: there already is an open gpx file and */
673              /* we just jump into the "cache" view */
674              is_in = context->appdata->cur_gpx;
675    
676            if(is_in) {
677              printf("selecting %s in %s\n",
678                     cache->id,
679                     context->appdata->cur_gpx->name);
680    
681              cachelist_goto_cache(context->appdata, cache);
682    
683              /* give focus to main screen (important for maemo) */
684              printf("raising main window\n");
685              gtk_window_present(GTK_WINDOW(context->appdata->window));
686            }
687          }
688        }
689      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
690        printf("removed\n");
691        context->balloon = NULL;
692      }
693    }
694    
695  static gboolean  static gboolean
696  cb_map_gps(GtkButton *button, map_context_t *context) {  on_map_button_release_event(GtkWidget *widget,
697    pos_t *refpos = get_pos(context->appdata);                              GdkEventButton *event, map_context_t *context) {
698    if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
     printf("pos is %f %f\n", refpos->lat, refpos->lon);  
699    
700      osm_gps_map_set_center(OSM_GPS_MAP(context->widget),    /* in "MAP_CACHE" state only one cache is visible */
701             DEG2RAD(refpos->lat), DEG2RAD(refpos->lon));    /* and the map is in navigation mode. the balloon is */
702      /* pretty useless there */
703      if(context->press_on && (context->state != MAP_CACHE)) {
704    
705        coord_t coo;
706        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
707    
708        pos_t pos =
709          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
710    
711        cache_t *nearest = map_closest(context, &pos);
712        if(nearest && nearest == context->press_on) {
713          pos_t cpos = gpx_cache_pos(nearest);
714    
715          float dist = gpx_pos_get_distance(pos, cpos, FALSE);
716          if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
717    
718            context->balloon = nearest;
719            osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
720                                         balloon_cb, context);
721          }
722        }
723        context->press_on = NULL;
724      } else {
725        /* save new map position */
726        gfloat lat, lon;
727        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
728        context->appdata->map.pos.lat = lat;
729        context->appdata->map.pos.lon = lon;
730    }    }
731    
732    return FALSE;    return FALSE;
733  }  }
734    
735  static GtkWidget  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
736  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    appdata_t *appdata = context->appdata;
737                  char *tooltip) {  
738    GtkWidget *button = gtk_button_new();    /* save map parameters */
739    gtk_button_set_image(GTK_BUTTON(button),    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
740                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));    gint zoom;
741    g_signal_connect(button, "clicked", cb, data);    g_object_get(map, "zoom", &zoom, NULL);
742  #ifndef USE_MAEMO    context->appdata->map.zoom = zoom;
743    gtk_widget_set_tooltip_text(button, tooltip);  
744      gfloat lat, lon;
745      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
746      context->appdata->map.pos.lat = lat;
747      context->appdata->map.pos.lon = lon;
748    
749      gint source;
750      g_object_get(map, "map-source", &source, NULL);
751      context->appdata->map.source = source;
752    
753    #if MAEMO_VERSION_MAJOR == 5
754      /* restore cur_view */
755      context->appdata->cur_view = context->old_view;
756  #endif  #endif
757    return button;  
758      gtk_timeout_remove(context->handler_id);
759      gps_unregister_callback(appdata, context->cb_id);
760    
761      if(context->caches_displayed) {
762        g_free(context->caches_displayed);
763        context->caches_displayed = NULL;
764      }
765    
766      g_free(context);
767      appdata->map.context = NULL;
768  }  }
769    
770  static gboolean map_gps_update(gpointer data) {  #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
771    /* get access to zoom buttons */
772    static void
773    on_window_realize(GtkWidget *widget, gpointer data) {
774      if (widget->window) {
775        unsigned char value = 1;
776        Atom hildon_zoom_key_atom =
777          gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
778          integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
779        Display *dpy =
780          GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
781        Window w = GDK_WINDOW_XID(widget->window);
782    
783        XChangeProperty(dpy, w, hildon_zoom_key_atom,
784                        integer_atom, 8, PropModeReplace, &value, 1);
785      }
786    }
787    #endif
788    
789    /* on maemo a window is either on top or completely invisible. this */
790    /* means that we only need to update the map window if its raised.  */
791    /* on ordinary desktops this is different and we always update */
792    
793    static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
794                             gpointer data) {
795    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
796    
797    pos_t *refpos = get_pos(context->appdata);    printf("map got focus\n");
   gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);  
798    
799    /* get reference position and go there */  #ifdef USE_MAEMO
800    gtk_widget_set_sensitive(context->gps, ok);    /* re-enable refresh of map */
801      if(!context->handler_id)
802        context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
803    #endif
804    
805    return TRUE;    map_setup(context);
806      return FALSE;
807    }
808    
809    #ifdef USE_MAEMO
810    static gboolean on_focus_out(GtkWidget *widget, GdkEventFocus *event,
811                             gpointer data) {
812      map_context_t *context = (map_context_t*)data;
813    
814      printf("map lost focus\n");
815      gtk_timeout_remove(context->handler_id);
816      context->handler_id = 0;
817    
818      return FALSE;
819    }
820    #endif
821    
822    void map_update(appdata_t *appdata) {
823      printf("map_update\n");
824    #ifndef USE_MAEMO
825      if(appdata->map.context)
826        map_setup(appdata->map.context);
827    #endif
828  }  }
829    
830    /* callback called by the gps layer whenever gps state changes */
831    static void
832    gps_callback(struct gps_state *state, gpointer data) {
833      printf("map: gps callback\n");
834    }
835    
836  void map(appdata_t *appdata) {  void map(appdata_t *appdata) {
837    map_context_t context;    map_context_t *context = NULL;
   context.appdata = appdata;  
838    
839    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),    /* if the map window already exists, just raise it */
840                            GTK_WINDOW(appdata->window),    if(appdata->map.context) {
841                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      printf("using existing map!\n");
842                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,      gtk_window_present(GTK_WINDOW(appdata->map.context->window));
843                            NULL);      map_setup(appdata->map.context);
844        return;
845      }
846    
847  #ifndef USE_MAEMO    context = appdata->map.context = g_new0(map_context_t, 1);
848    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    context->appdata = appdata;
849      context->map_complete = FALSE;
850      context->state = MAP_NONE;
851    
852      /* cleanup old (pre 0.8.7) path if it exists */
853      char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
854      if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
855        printf("old file path %s exists\n", old_path);
856        rmdir_recursive(old_path);
857      }
858    
859      /* It is recommanded that all applications share these same */
860      /* map path, so data is only cached once. The path should be: */
861      /* ~/.osm-gps-map on standard PC     (users home) */
862      /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
863      /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
864    #if !defined(USE_MAEMO)
865      char *p = getenv("HOME");
866      if(!p) p = "/tmp";
867      char *path = g_strdup_printf("%s/.osm-gps-map", p);
868    #else
869    #if MAEMO_VERSION_MAJOR == 5
870      char *path = g_strdup("/home/user/.osm-gps-map");
871  #else  #else
872    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);    char *path = g_strdup("/media/mmc2/osm-gps-map");
873    #endif
874  #endif  #endif
875    
876    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    const char *proxy = get_proxy_uri(appdata);
877    
878    char *path = g_strdup_printf("%s/map/", appdata->image_path);    gint source = context->appdata->map.source;
879      if(!source) source = MAP_SOURCE;
880    
881    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
882                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "map-source",               source,
883                  "proxy-uri", get_proxy_uri(appdata),                   "tile-cache",               path,
884                  "tile-cache", path,                   "auto-center",              FALSE,
885                     "record-trip-history",      FALSE,
886                     "show-trip-history",        FALSE,
887                     proxy?"proxy-uri":NULL,     proxy,
888                   NULL);                   NULL);
889    
890    g_free(path);    g_free(path);
891    
892  #if 0    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
893    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  
894                     G_CALLBACK(on_map_button_release_event), &context);  #ifdef USE_MAEMO
895      /* we don't use a stackable window here on fremantle, since */
896      /* this leaves the main window independent from the map and */
897      /* the user can e.g. still navigate the main menu */
898      context->window = hildon_window_new();
899    
900    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
901      g_signal_connect(G_OBJECT(context->window), "realize",
902                       G_CALLBACK(on_window_realize), NULL);
903    #endif // MAEMO_VERSION
904    #else
905      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
906  #endif  #endif
907    
908    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);  #ifndef USE_MAEMO
909    /* zoom button box */    gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
910    GtkWidget *vbox = gtk_vbox_new(FALSE,0);  #endif
911    
912    context.zoomin =    g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
913      map_add_button(GTK_STOCK_ZOOM_IN, G_CALLBACK(cb_map_zoomin),                     G_CALLBACK(on_focus_in), context);
                    &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);  
914    
915    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);  #ifdef USE_MAEMO
916      g_signal_connect(G_OBJECT(context->widget), "focus-out-event",
917                       G_CALLBACK(on_focus_out), context);
918    #endif
919    
920    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    g_signal_connect(G_OBJECT(context->widget), "configure-event",
921                       G_CALLBACK(on_map_configure), context);
922    
923    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
924                       G_CALLBACK(on_map_button_press_event), context);
925    
926    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
927                       G_CALLBACK(on_map_button_release_event), context);
928    
929    gtk_dialog_run(GTK_DIALOG(dialog));    /* install handler for timed updates of the gps button */
930      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
931    gtk_widget_destroy(dialog);    context->cb_id = gps_register_callback(appdata, gps_callback, context);
932    
933    #if MAEMO_VERSION_MAJOR == 5
934      /* prevent some of the main screen things */
935      context->old_view = appdata->cur_view;
936      appdata->cur_view = NULL;
937    #endif
938    
939      g_signal_connect(G_OBJECT(context->window), "destroy",
940                       G_CALLBACK(on_window_destroy), context);
941    
942      gtk_container_add(GTK_CONTAINER(context->window), context->widget);
943      gtk_widget_show_all(GTK_WIDGET(context->window));
944  }  }
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