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

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revision 33 by harbaum, Tue Jul 28 13:21:40 2009 UTC revision 202 by harbaum, Sat Nov 21 20:13:13 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     * - make semi-transparent caches selectable
28     */
29    
30  #include "gpxview.h"  #include "gpxview.h"
31    #include "converter.h"
32    #include <math.h>    // for isnan
33    
34  #ifdef ENABLE_OSM_GPS_MAP  #ifdef ENABLE_OSM_GPS_MAP
35  #include "osm-gps-map.h"  #include "osm-gps-map.h"
36    #include "osm-gps-map-osd-classic.h"
37    #endif
38    
39    #if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5)
40    #include <gdk/gdkx.h>
41    #include <X11/Xatom.h>
42  #endif  #endif
43    
44  typedef struct {  /* default values */
45    GtkWidget *widget;  #define MAP_SOURCE  OSM_GPS_MAP_SOURCE_OPENCYCLEMAP
46    GtkWidget *zoomin, *zoomout, *gps;  #define GPS_DEFAULT_ZOOM 13
   gint handler_id;  
 } map_context_t;  
47    
48  static const char *get_proxy_uri(void) {  #define PROXY_KEY  "/system/http_proxy/"
49    static char proxy_buffer[64];  
50    static const char *get_proxy_uri(appdata_t *appdata) {
51      static char proxy_buffer[64] = "";
52    
53    /* use environment settings if preset */    /* use environment settings if preset */
54    const char *proxy = g_getenv("http_proxy");    const char *proxy = g_getenv("http_proxy");
55    if(proxy) {    if(proxy) {
56      printf("http_proxy: %s\n", proxy);      printf("map http proxy from env: %s\n", proxy);
57      return proxy;      return proxy;
58    }    }
59    
60  #if 0    /* ------------- get proxy settings -------------------- */
61    /* otherwise try settings */    if(gconf_client_get_bool(appdata->gconf_client,
62    if(!settings || !settings->proxy ||                             PROXY_KEY "use_http_proxy", NULL)) {
63       !settings->proxy->host) return NULL;  
64        /* we can savely ignore things like "ignore_hosts" since we */
65        /* are pretty sure not inside the net of one of our map renderers */
66        /* (unless the user works at google :-) */
67    
68        /* get basic settings */
69        char *host =
70          gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL);
71        if(host) {
72          int port =
73            gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL);
74    
75          snprintf(proxy_buffer, sizeof(proxy_buffer),
76                   "http://%s:%u", host, port);
77          printf("map http proxy from gconf: %s\n ", proxy_buffer);
78    
79          g_free(host);
80        }
81        return proxy_buffer;
82      }
83    
84    snprintf(proxy_buffer, sizeof(proxy_buffer), "%s%s:%u",    return NULL;
85             strncmp(settings->proxy->host, "http://", 7)?"http://":"",  }
            settings->proxy->host, settings->proxy->port);  
86    
87    proxy_buffer[sizeof(proxy_buffer)-1] = 0;  static void
88    printf("gconf_proxy: %s\n", proxy_buffer);  cb_map_gps(osd_button_t but, map_context_t *context) {
 #endif  
89    
90    return proxy_buffer;    if(but == OSD_GPS) {
91        pos_t *refpos = get_pos(context->appdata);
92        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
93          gint zoom;
94          g_object_get(OSM_GPS_MAP(context->widget), "zoom", &zoom, NULL);
95          if(zoom < 10)
96            osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
97                                      refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
98          else
99            osm_gps_map_set_center(OSM_GPS_MAP(context->widget),
100                                   refpos->lat, refpos->lon);
101    
102          /* re-enable centering */
103          g_object_set(context->widget, "auto-center", TRUE, NULL);
104        } else {
105          /* no coordinates given: display the entire world */
106          osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
107                                    0.0, 0.0, 1);
108        }
109      }
110  }  }
111    
112  static void map_zoom(map_context_t *context, int step) {  static int dist2pixel(map_context_t *context, float km, float lat) {
113    int zoom;    return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
114    OsmGpsMap *map = OSM_GPS_MAP(context->widget);  }
   g_object_get(map, "zoom", &zoom, NULL);  
   zoom = osm_gps_map_set_zoom(map, zoom+step);  
115    
116    /* enable/disable zoom buttons as required */  static gboolean map_gps_update(gpointer data) {
117    gtk_widget_set_sensitive(context->zoomin, zoom<17);    map_context_t *context = (map_context_t*)data;
118    gtk_widget_set_sensitive(context->zoomout, zoom>1);    static gboolean goto_is_enabled = FALSE;
119    
120      /* get reference position ... */
121      pos_t *refpos = get_pos(context->appdata);
122      gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
123    
124      /* ... and enable "goto" button if it's valid */
125      if(ok != goto_is_enabled) {
126        osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
127                    OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context);
128        goto_is_enabled = ok;
129      }
130    
131      if(ok) {
132        float heading = NAN;
133        int radius = 0;
134    
135        if(context->appdata->use_gps) {
136          heading = gps_get_heading(context->appdata);
137    
138          /* get error */
139          float eph = gps_get_eph(context->appdata);
140          if(!isnan(eph))
141            radius = dist2pixel(context, eph/1000, refpos->lat);
142        }
143    
144        /* TODO: in order to save energy: only draw if state actually changed */
145    
146        g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
147        osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
148                             refpos->lat, refpos->lon, heading);
149      } else
150        osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
151    
152      return TRUE;
153  }  }
154    
155  static gboolean  static void map_draw_cache(GtkWidget *map, cache_t *cache, gboolean semi) {
156  cb_map_zoomin(GtkButton *button, map_context_t *context) {    int type = semi?ICON_CACHE_TYPE_SEMI:ICON_CACHE_TYPE;
157    map_zoom(context, +1);  
158      GdkPixbuf *icon = icon_get(type, cache->type);
159    
160      /* check if there's also an overwritten coordinate */
161      if(cache->notes && cache->notes->override) {
162        GdkPixbuf *over = icon_get(type, 11);
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, cache_display_t *caches,
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        /* search if we have that cache already in our list/displayed */
187        int i=0;
188        while(caches[i].id && (strcmp(caches[i].id, cache->id) != 0))
189          i++;
190    
191        if(!caches[i].id) {
192          /* if nav is given draw all other caches semitransparent. */
193          /* if nav is not given do what semi sais */
194          map_draw_cache(map, cache, nav?(cache != nav):semi);
195          caches[i].id = cache->id;
196        }
197    
198        cache = cache->next;
199      }
200    }
201    
202    /* draw geocaches and set window title */
203    static void map_setup(map_context_t *context) {
204      char *name = NULL;
205    
206      int cache_num = gpx_total_caches_global(context->appdata->gpx);
207    
208      if(context->caches_displayed && (cache_num != context->cache_list_len)) {
209        //    printf("re-alloc because %p %d/%d\n", context->caches_displayed,
210        //     cache_num, context->cache_list_len);
211        g_free(context->caches_displayed);
212        context->caches_displayed = NULL;
213        context->cache_list_len = 0;
214      }
215    
216      /* allocate buffer */
217      if(cache_num && !context->caches_displayed) {
218        context->cache_list_len = cache_num;
219        context->caches_displayed = g_new0(cache_display_t, cache_num+1);
220        printf("allocated space to handle %d map icons\n", cache_num);
221      }
222    
223      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
224        if(context->state != MAP_ALL) {
225          printf("map_setup(ALL)\n");
226    
227    #ifdef OSD_NAV
228          /* no navigation in this mode */
229          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
230    #endif
231    
232          /* clear all existing cache images */
233          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
234          memset(context->caches_displayed, 0,
235                 (cache_num+1) * sizeof(cache_display_t));
236    
237          /* draw all geocaches and none is semi-transparent */
238          gpx_t *gpx = context->appdata->gpx;
239          while(gpx) {
240            map_draw_gpx(context->appdata, context->caches_displayed,
241                         context->widget, gpx, NULL, FALSE);
242            gpx = gpx->next;
243          }
244    
245          {
246            int i=0;
247            while(context->caches_displayed[i].id) i++;
248            printf("number of caches actually displayed: %d\n", i);
249          }
250    
251          name = g_strdup(_("all"));
252          context->state = MAP_ALL;
253        }
254      } else if(!context->appdata->cur_cache) {
255        if(context->state != MAP_GPX) {
256          printf("map_setup(GPX)\n");
257    
258    #ifdef OSD_NAV
259          /* no navigation in this mode */
260          osm_gps_map_osd_clear_nav (OSM_GPS_MAP(context->widget));
261    #endif
262    
263          /* clear all existing ccahe images */
264          osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
265          memset(context->caches_displayed, 0,
266                 (cache_num+1) * sizeof(cache_display_t));
267    
268          /* draw all geocaches and all other gpx files are semi-transparent */
269          map_draw_gpx(context->appdata, context->caches_displayed,
270                       context->widget, context->appdata->cur_gpx, NULL, FALSE);
271    
272          gpx_t *gpx = context->appdata->gpx;
273          while(gpx) {
274            if(gpx != context->appdata->cur_gpx)
275              map_draw_gpx(context->appdata, context->caches_displayed,
276                           context->widget, gpx, NULL, TRUE);
277    
278            gpx = gpx->next;
279          }
280    
281          name = g_strdup(context->appdata->cur_gpx->name);
282          context->state = MAP_GPX;
283        }
284      } else {
285        cache_t *cache = context->appdata->cur_cache;
286    
287        printf("map_setup(CACHE)\n");
288    
289        /* no balloons in this mode */
290        context->balloon = NULL;
291        osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(context->widget));
292    
293        /* clear all existing ccahe images */
294        osm_gps_map_clear_images (OSM_GPS_MAP(context->widget));
295        memset(context->caches_displayed, 0,
296               (cache_num+1) * sizeof(cache_display_t));
297    
298        /* draw all geocaches and all but selected one are semi-transparent */
299        gpx_t *gpx = context->appdata->gpx;
300        while(gpx) {
301          map_draw_gpx(context->appdata, context->caches_displayed,
302                       context->widget, gpx, cache, FALSE);
303          gpx = gpx->next;
304        }
305    
306        name = g_strdup(cache->name);
307        context->state = MAP_CACHE;
308    
309        /* navigation in this mode! */
310        pos_t cpos = gpx_cache_pos(cache);
311    
312    #ifdef OSD_NAV
313        osm_gps_map_osd_draw_nav (OSM_GPS_MAP(context->widget),
314                                  context->appdata->imperial,
315                                  cpos.lat, cpos.lon, cache->name);
316    #else
317    #warning OSD_NAV not defined!
318    #endif
319      }
320    
321      if(name) {
322        char *title = g_strdup_printf(_("Map - %s"), name);
323        g_free(name);
324    
325        gtk_window_set_title(GTK_WINDOW(context->window), title);
326    
327        g_free(title);
328      } else
329        printf("map_setup(keep)\n");
330    }
331    
332    static gboolean on_map_configure(GtkWidget *widget,
333                                     GdkEventConfigure *event,
334                                     map_context_t *context) {
335    
336      /* for some reason there's a configure event with 1/1 */
337      /* on diablo. We just ignore this! */
338    
339      printf("on_map_configure %d %d\n",
340             widget->allocation.width,
341             widget->allocation.height);
342    
343      if(!context->map_complete &&
344         (widget->allocation.width > 100) &&
345         (widget->allocation.height > 100)) {
346    
347        /* setup cache state */
348        map_setup(context);
349    
350        /* set default values if they are invalid */
351        if(!context->appdata->map.zoom ||
352           isnan(context->appdata->map.pos.lat) ||
353           isnan(context->appdata->map.pos.lon)) {
354          printf("no valid map position found\n");
355    
356          pos_t *refpos = get_pos(context->appdata);
357          if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
358            printf("use refpos\n");
359    
360            /* use gps position if present */
361            context->appdata->map.pos = *refpos;
362            context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
363          } else {
364            printf("use zero pos\n");
365    
366            /* use world map otherwise */
367            context->appdata->map.pos.lat = 0.0;
368            context->appdata->map.pos.lon = 0.0;
369            context->appdata->map.zoom = 1;
370          }
371        }
372    
373        /* jump to initial position */
374        printf("osm_gps_map_set_mapcenter(%f,%f,%d)\n",
375               context->appdata->map.pos.lat,
376               context->appdata->map.pos.lon,
377               context->appdata->map.zoom);
378    
379        osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
380                                  context->appdata->map.pos.lat,
381                                  context->appdata->map.pos.lon,
382                                  context->appdata->map.zoom);
383        context->map_complete = TRUE;
384      }
385    
386    return FALSE;    return FALSE;
387  }  }
388    
389    static void
390    map_cachelist_nearest(cache_t *cache, pos_t *pos,
391                          cache_t **result, float *distance) {
392    
393      while(cache) {
394        pos_t cpos = gpx_cache_pos(cache);
395    
396        float dist =
397          pow(cpos.lat - pos->lat, 2) +
398          pow(cpos.lon - pos->lon, 2);
399    
400        if(!(dist > *distance)) {
401          *result = cache;
402          *distance = dist;
403        }
404    
405        cache = cache->next;
406      }
407    }
408    
409    static cache_t *map_closest(map_context_t *context, pos_t *pos) {
410      cache_t *result = NULL;
411      float distance = NAN;
412    
413      if(!context->appdata->cur_gpx && !context->appdata->cur_cache) {
414        /* search all geocaches */
415        gpx_t *gpx = context->appdata->gpx;
416        while(gpx) {
417          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
418          gpx = gpx->next;
419        }
420      } else if(context->appdata->cur_gpx) {
421        map_cachelist_nearest(context->appdata->cur_gpx->cache,
422                              pos, &result, &distance);
423      } else
424        result = context->appdata->cur_gpx->cache;
425    
426      return result;
427    }
428    
429    /* translate between osm-gps-map positions and gpxview ones */
430    pos_t coord2pos(coord_t coo) {
431      pos_t pos;
432      pos.lat = rad2deg(coo.rlat);
433      pos.lon = rad2deg(coo.rlon);
434      return pos;
435    }
436    
437    #define CLICK_FUZZ (24)
438    
439  static gboolean  static gboolean
440  cb_map_zoomout(GtkButton *button, map_context_t *context) {  on_map_button_press_event(GtkWidget *widget,
441    map_zoom(context, -1);                              GdkEventButton *event, map_context_t *context) {
442    
443      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
444    
445      /* check if we actually clicked parts of the OSD */
446      if(osm_gps_map_osd_check(map, event->x, event->y) != OSD_NONE)
447        return FALSE;
448    
449      /* got a press event without release event? eat it! */
450      if(context->press_on != NULL) {
451        printf("PRESS: already\n");
452        return FALSE;
453      }
454    
455      pos_t pos =
456        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
457    
458      cache_t *nearest = map_closest(context, &pos);
459      if(nearest) {
460        pos_t cpos = gpx_cache_pos(nearest);
461    
462        float dist = gpx_pos_get_distance(pos, cpos, FALSE);
463        if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ)
464          context->press_on = nearest;
465      }
466    
467    return FALSE;    return FALSE;
468  }  }
469    
470    static void
471    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
472      /* convert the pixbuf into something cairo can handle */
473    
474      // Create a new ImageSurface
475      cairo_surface_t *image_surface =
476        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
477                                   gdk_pixbuf_get_width(buf),
478                                   gdk_pixbuf_get_height(buf));
479    
480      // Create the new Context for the ImageSurface
481      g_assert(image_surface);
482      cairo_t *context = cairo_create(image_surface);
483    
484      // Draw the image on the new Context
485      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
486      cairo_paint(context);
487    
488      // now draw this onto the original context
489      cairo_set_source_surface(cr, image_surface, x, y);
490    
491      cairo_paint(cr);
492    }
493    
494    #ifndef BIG_BALLOONS
495    #define ICON_SIZE  ICON_CACHE_TYPE
496    #else
497    #define ICON_SIZE  ICON_CACHE_TYPE_1_5X
498    #endif
499    
500    #ifndef BIG_BALLOONS
501    #define FONT_SIZE 14.0
502    #else
503    #define FONT_SIZE 22.0
504    #endif
505    #define LINE_SKIP  (FONT_SIZE/4)
506    
507    
508    static void
509    balloon_cb(osm_gps_map_balloon_event_t *event, gpointer data) {
510      printf("balloon event: ");
511    
512      map_context_t *context = (map_context_t*)data;
513      cache_t *cache = context->balloon;
514    
515      if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW) {
516        printf("draw\n");
517    
518    #if 0
519        /* draw pink background to check clipping */
520        cairo_rectangle (event->data.draw.cr,
521                         event->data.draw.rect->x-20, event->data.draw.rect->y-20,
522                         event->data.draw.rect->w+40, event->data.draw.rect->h+40);
523        cairo_set_source_rgba (event->data.draw.cr, 1, 0, 0, 0.3);
524        cairo_fill_preserve (event->data.draw.cr);
525        cairo_set_line_width (event->data.draw.cr, 0);
526        cairo_stroke (event->data.draw.cr);
527    #endif
528    
529        /* leave a little border top and left */
530        gint x = event->data.draw.rect->x, y = event->data.draw.rect->y;
531    
532        /* draw the cache type icon ... */
533        GdkPixbuf *icon = icon_get(ICON_SIZE, cache->type);
534        cairo_draw_pixbuf(event->data.draw.cr, icon, x, y);
535    
536        if(cache->notes && cache->notes->override) {
537          GdkPixbuf *over = icon_get(ICON_SIZE, 11);
538          cairo_draw_pixbuf(event->data.draw.cr, over, x, y);
539        }
540    
541        /* ... and right of it the waypoint id */
542        cairo_text_extents_t extents;
543    
544        if(cache->id) {
545          cairo_select_font_face (event->data.draw.cr, "Sans",
546                                  CAIRO_FONT_SLANT_NORMAL,
547                                  CAIRO_FONT_WEIGHT_BOLD);
548    
549    #ifndef BIG_BALLOONS
550          cairo_set_font_size (event->data.draw.cr, 20.0);
551    #else
552          cairo_set_font_size (event->data.draw.cr, 36.0);
553    #endif
554    
555          cairo_text_extents (event->data.draw.cr, cache->id, &extents);
556    
557          /* display id right of icon vertically centered */
558          x += gdk_pixbuf_get_width(icon) + 5;
559          y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
560          cairo_move_to (event->data.draw.cr, x, y);
561          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
562          cairo_show_text (event->data.draw.cr, cache->id);
563          cairo_stroke (event->data.draw.cr);
564    
565          y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
566        } else
567          y += gdk_pixbuf_get_height(icon);
568    
569        /* return to the left border and below icon/text */
570        x = event->data.draw.rect->x;
571    
572        /* everything from here uses the same font */
573        cairo_select_font_face (event->data.draw.cr, "Sans",
574                                CAIRO_FONT_SLANT_NORMAL,
575                                CAIRO_FONT_WEIGHT_NORMAL);
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          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing);
583          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
584          cairo_show_text (event->data.draw.cr, cache->name);
585          cairo_stroke (event->data.draw.cr);
586    
587          /* return to the left border and below text */
588          y += LINE_SKIP + FONT_SIZE;
589          x = event->data.draw.rect->x;
590        }
591    
592        if(cache->terrain) {
593          int text_y = 0, icon_y = 0;
594    
595          /* draw cache rating */
596          const char *terrain = "Terrain:";
597          icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
598          cairo_text_extents (event->data.draw.cr, _(terrain), &extents);
599    
600          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
601            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
602          else
603            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
604    
605          /* draw "Terrain:" string */
606          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
607          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
608          cairo_show_text (event->data.draw.cr, _(terrain));
609          cairo_stroke (event->data.draw.cr);
610          x += extents.width + 2;
611    
612          /* draw terrain stars */
613          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
614    
615          x += gdk_pixbuf_get_width(icon) + LINE_SKIP;
616        }
617    
618        if(cache->difficulty) {
619          int text_y = 0, icon_y = 0;
620    
621          const char *difficulty = "Difficulty:";
622          icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
623          cairo_text_extents (event->data.draw.cr, _(difficulty), &extents);
624    
625          if(gdk_pixbuf_get_height(icon) > FONT_SIZE)
626            text_y = (gdk_pixbuf_get_height(icon) - FONT_SIZE)/2;
627          else
628            icon_y = (FONT_SIZE - gdk_pixbuf_get_height(icon))/2;
629    
630          /* draw "Difficulty:" string */
631          cairo_move_to (event->data.draw.cr, x, y - extents.y_bearing + text_y);
632          cairo_set_source_rgba (event->data.draw.cr, 0, 0, 0, 1);
633          cairo_show_text (event->data.draw.cr, _(difficulty));
634          cairo_stroke (event->data.draw.cr);
635          x += extents.width + 2;
636    
637          cairo_draw_pixbuf(event->data.draw.cr, icon, x, y + icon_y);
638        }
639      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK) {
640        printf("click %s event at %d %d\n",
641               event->data.click.down?"down":"up",
642               event->data.click.x, event->data.click.y);
643    
644        /* make the main screen jump to that cache */
645        if(!event->data.click.down) {
646          if(context->appdata->cur_cache) {
647            printf("ERROR: no current cache should be visible!\n");
648          } else {
649            gpx_t *is_in = NULL;
650    
651            if(!context->appdata->cur_gpx) {
652              printf("click while in \"all\" view\n");
653    
654              /* we first need to figure out which gpx file this cache */
655              /* is in so we can open it first */
656              gpx_t *gpx = context->appdata->gpx;
657              while(gpx && !is_in) {
658                cache_t *cur = gpx->cache;
659                while(cur && !is_in) {
660                  if(cur == cache)
661                    is_in = gpx;
662                  cur = cur->next;
663                }
664                gpx = gpx->next;
665              }
666    
667              if(is_in)
668                gpxlist_goto_cachelist(context->appdata, is_in);
669    
670            } else
671              /* the simple case: there already is an open gpx file and */
672              /* we just jump into the "cache" view */
673              is_in = context->appdata->cur_gpx;
674    
675            if(is_in) {
676              printf("selecting %s in %s\n",
677                     cache->id,
678                     context->appdata->cur_gpx->name);
679    
680              cachelist_goto_cache(context->appdata, cache);
681    
682              /* give focus to main screen (important for maemo) */
683              printf("raising main window\n");
684              gtk_window_present(GTK_WINDOW(context->appdata->window));
685            }
686          }
687        }
688      } else if(event->type == OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED) {
689        printf("removed\n");
690        context->balloon = NULL;
691      }
692    }
693    
694  static gboolean  static gboolean
695  cb_map_gps(GtkButton *button, map_context_t *context) {  on_map_button_release_event(GtkWidget *widget,
696                                GdkEventButton *event, map_context_t *context) {
697      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
698    
699    //  osm_gps_map_set_center(OSM_GPS_MAP(context->widget),    /* in "MAP_CACHE" state only one cache is visible */
700    //                     DEG2RAD(pos.lat), DEG2RAD(pos.lon));    /* and the map is in navigation mode. the balloon is */
701      /* pretty useless there */
702      if(context->press_on && (context->state != MAP_CACHE)) {
703    
704        coord_t coo;
705        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
706    
707        pos_t pos =
708          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
709    
710        cache_t *nearest = map_closest(context, &pos);
711        if(nearest && nearest == context->press_on) {
712          pos_t cpos = gpx_cache_pos(nearest);
713    
714          float dist = gpx_pos_get_distance(pos, cpos, FALSE);
715          if(dist2pixel(context, dist, cpos.lat) < CLICK_FUZZ) {
716    
717            context->balloon = nearest;
718            osm_gps_map_osd_draw_balloon(map, cpos.lat, cpos.lon,
719                                         balloon_cb, context);
720          }
721        }
722        context->press_on = NULL;
723      } else {
724        /* save new map position */
725        gfloat lat, lon;
726        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
727        context->appdata->map.pos.lat = lat;
728        context->appdata->map.pos.lon = lon;
729      }
730    
731    return FALSE;    return FALSE;
732  }  }
733    
734  static GtkWidget  static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
735  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    appdata_t *appdata = context->appdata;
736                  char *tooltip) {  
737    GtkWidget *button = gtk_button_new();    /* save map parameters */
738    gtk_button_set_image(GTK_BUTTON(button),    OsmGpsMap *map = OSM_GPS_MAP(context->widget);
739                         gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));    gint zoom;
740    g_signal_connect(button, "clicked", cb, data);    g_object_get(map, "zoom", &zoom, NULL);
741  #ifndef USE_MAEMO    context->appdata->map.zoom = zoom;
742    gtk_widget_set_tooltip_text(button, tooltip);  
743      gfloat lat, lon;
744      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
745      context->appdata->map.pos.lat = lat;
746      context->appdata->map.pos.lon = lon;
747    
748      gint source;
749      g_object_get(map, "map-source", &source, NULL);
750      context->appdata->map.source = source;
751    
752    #if MAEMO_VERSION_MAJOR == 5
753      /* restore cur_view */
754      context->appdata->cur_view = context->old_view;
755  #endif  #endif
756    return button;  
757      gtk_timeout_remove(context->handler_id);
758      gps_unregister_callback(appdata, context->cb_id);
759    
760      if(context->caches_displayed) {
761        g_free(context->caches_displayed);
762        context->caches_displayed = NULL;
763      }
764    
765      g_free(context);
766      appdata->map.context = NULL;
767  }  }
768    
769  static gboolean map_gps_update(gpointer data) {  #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
770    /* get access to zoom buttons */
771    static void
772    on_window_realize(GtkWidget *widget, gpointer data) {
773      if (widget->window) {
774        unsigned char value = 1;
775        Atom hildon_zoom_key_atom =
776          gdk_x11_get_xatom_by_name("_HILDON_ZOOM_KEY_ATOM"),
777          integer_atom = gdk_x11_get_xatom_by_name("INTEGER");
778        Display *dpy =
779          GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(widget->window));
780        Window w = GDK_WINDOW_XID(widget->window);
781    
782        XChangeProperty(dpy, w, hildon_zoom_key_atom,
783                        integer_atom, 8, PropModeReplace, &value, 1);
784      }
785    }
786    #endif
787    
788    /* on maemo a window is either on top or completely invisible. this */
789    /* means that we only need to update the map window if its raised.  */
790    /* on ordinary desktops this is different and we always update */
791    
792    static gboolean on_focus_in(GtkWidget *widget, GdkEventFocus *event,
793                             gpointer data) {
794    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
795    
796    //  gtk_widget_set_sensitive(context->map.gps, gps_fix);    printf("map got focus\n");
797    
798    return TRUE;  #ifdef USE_MAEMO
799      /* re-enable refresh of map */
800      if(!context->handler_id)
801        context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
802    #endif
803    
804      map_setup(context);
805      return FALSE;
806    }
807    
808    #ifdef USE_MAEMO
809    static gboolean on_focus_out(GtkWidget *widget, GdkEventFocus *event,
810                             gpointer data) {
811      map_context_t *context = (map_context_t*)data;
812    
813      printf("map lost focus\n");
814      gtk_timeout_remove(context->handler_id);
815      context->handler_id = 0;
816    
817      return FALSE;
818  }  }
819    #endif
820    
821    void map_update(appdata_t *appdata) {
822      printf("map_update\n");
823    #ifndef USE_MAEMO
824      if(appdata->map.context)
825        map_setup(appdata->map.context);
826    #endif
827    }
828    
829    /* callback called by the gps layer whenever gps state changes */
830    static void
831    gps_callback(struct gps_state *state, gpointer data) {
832      printf("map: gps callback\n");
833    }
834    
835  void map(appdata_t *appdata) {  void map(appdata_t *appdata) {
836    map_context_t context;    map_context_t *context = NULL;
837    
838    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),    /* if the map window already exists, just raise it */
839                            GTK_WINDOW(appdata->window),    if(appdata->map.context) {
840                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,      printf("using existing map!\n");
841                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,      gtk_window_present(GTK_WINDOW(appdata->map.context->window));
842                            NULL);      map_setup(appdata->map.context);
843        return;
844      }
845    
846  #ifndef USE_MAEMO    context = appdata->map.context = g_new0(map_context_t, 1);
847    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    context->appdata = appdata;
848      context->map_complete = FALSE;
849      context->state = MAP_NONE;
850    
851      /* cleanup old (pre 0.8.7) path if it exists */
852      char *old_path = g_strdup_printf("%s/map/", appdata->image_path);
853      if(g_file_test(old_path, G_FILE_TEST_IS_DIR)) {
854        printf("old file path %s exists\n", old_path);
855        rmdir_recursive(old_path);
856      }
857    
858      /* It is recommanded that all applications share these same */
859      /* map path, so data is only cached once. The path should be: */
860      /* ~/.osm-gps-map on standard PC     (users home) */
861      /* /home/user/.osm-gps-map on Maemo5 (ext3 on internal card) */
862      /* /media/mmc2/osm-gps-map on Maemo4 (vfat on internal card) */
863    #if !defined(USE_MAEMO)
864      char *p = getenv("HOME");
865      if(!p) p = "/tmp";
866      char *path = g_strdup_printf("%s/.osm-gps-map", p);
867    #else
868    #if MAEMO_VERSION_MAJOR == 5
869      char *path = g_strdup("/home/user/.osm-gps-map");
870  #else  #else
871    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);    char *path = g_strdup("/media/mmc2/osm-gps-map");
872    #endif
873  #endif  #endif
874    
875    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    const char *proxy = get_proxy_uri(appdata);
876    
877    char *path = g_strdup_printf("%s/map/", appdata->image_path);    gint source = context->appdata->map.source;
878      if(!source) source = MAP_SOURCE;
879    
880    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
881                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "map-source",               source,
882                  "proxy-uri", get_proxy_uri(),                   "tile-cache",               path,
883                  "tile-cache", path,                   "auto-center",              FALSE,
884                     "record-trip-history",      FALSE,
885                     "show-trip-history",        FALSE,
886                     proxy?"proxy-uri":NULL,     proxy,
887                   NULL);                   NULL);
888    
889    g_free(path);    g_free(path);
890    
891  #if 0    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
892    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  
893                     G_CALLBACK(on_map_button_release_event), &context);  #ifdef USE_MAEMO
894      /* we don't use a stackable window here on fremantle, since */
895      /* this leaves the main window independent from the map and */
896      /* the user can e.g. still navigate the main menu */
897      context->window = hildon_window_new();
898    
899    #if (MAEMO_VERSION_MAJOR == 5) && !defined(__i386__)
900      g_signal_connect(G_OBJECT(context->window), "realize",
901                       G_CALLBACK(on_window_realize), NULL);
902    #endif // MAEMO_VERSION
903    #else
904      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
905  #endif  #endif
906    
907    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);  #ifndef USE_MAEMO
908    /* zoom button box */    gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
909    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);  
910    
911    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);    g_signal_connect(G_OBJECT(context->widget), "focus-in-event",
912                       G_CALLBACK(on_focus_in), context);
913    
914    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);  #ifdef USE_MAEMO
915      g_signal_connect(G_OBJECT(context->widget), "focus-out-event",
916                       G_CALLBACK(on_focus_out), context);
917    #endif
918    
919    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "configure-event",
920                       G_CALLBACK(on_map_configure), context);
921    
922    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
923                       G_CALLBACK(on_map_button_press_event), context);
924    
925    gtk_dialog_run(GTK_DIALOG(dialog));    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
926                       G_CALLBACK(on_map_button_release_event), context);
927    gtk_widget_destroy(dialog);  
928      /* install handler for timed updates of the gps button */
929      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
930      context->cb_id = gps_register_callback(appdata, gps_callback, context);
931    
932    #if MAEMO_VERSION_MAJOR == 5
933      /* prevent some of the main screen things */
934      context->old_view = appdata->cur_view;
935      appdata->cur_view = NULL;
936    #endif
937    
938      g_signal_connect(G_OBJECT(context->window), "destroy",
939                       G_CALLBACK(on_window_destroy), context);
940    
941      gtk_container_add(GTK_CONTAINER(context->window), context->widget);
942      gtk_widget_show_all(GTK_WIDGET(context->window));
943  }  }
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