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

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 38 by harbaum, Sun Aug 2 18:37:10 2009 UTC revision 73 by harbaum, Sun Aug 23 19:38:15 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 18  Line 18 
18   */   */
19    
20  #include "gpxview.h"  #include "gpxview.h"
21    #include "converter.h"
22  #include <math.h>    // for isnan  #include <math.h>    // for isnan
23    
24  #ifdef ENABLE_OSM_GPS_MAP  #ifdef ENABLE_OSM_GPS_MAP
25  #include "osm-gps-map.h"  #include "osm-gps-map.h"
26    #include "osm-gps-map-osd-classic.h"
27  #endif  #endif
28    
29  typedef struct {  #define MAP_SOURCE  OSM_GPS_MAP_SOURCE_OPENSTREETMAP
30    appdata_t *appdata;  #define GPS_DEFAULT_ZOOM 13
   GtkWidget *widget;  
   GtkWidget *zoomin, *zoomout, *gps;  
   gint handler_id;  
 } map_context_t;  
31    
32  #define PROXY_KEY  "/system/http_proxy/"  #define PROXY_KEY  "/system/http_proxy/"
33    
# Line 69  static const char *get_proxy_uri(appdata Line 67  static const char *get_proxy_uri(appdata
67    return NULL;    return NULL;
68  }  }
69    
70  static void map_zoom(map_context_t *context, int step) {  static void
71    int zoom;  cb_map_gps(osd_button_t but, map_context_t *context) {
72    OsmGpsMap *map = OSM_GPS_MAP(context->widget);    if(but == OSD_GPS) {
73    g_object_get(map, "zoom", &zoom, NULL);      pos_t *refpos = get_pos(context->appdata);
74    zoom = osm_gps_map_set_zoom(map, zoom+step);      if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
75          osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
76    /* enable/disable zoom buttons as required */                                  refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
77    gtk_widget_set_sensitive(context->zoomin, zoom<17);      } else {
78    gtk_widget_set_sensitive(context->zoomout, zoom>1);        /* no coordinates given: display the entire world */
79  }        osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
80                                    0.0, 0.0, 1);
81  static gboolean      }
 cb_map_zoomin(GtkButton *button, map_context_t *context) {  
   map_zoom(context, +1);  
   return FALSE;  
 }  
   
 static gboolean  
 cb_map_zoomout(GtkButton *button, map_context_t *context) {  
   map_zoom(context, -1);  
   return FALSE;  
 }  
   
 static gboolean  
 cb_map_gps(GtkButton *button, map_context_t *context) {  
   pos_t *refpos = get_pos(context->appdata);  
   if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {  
     osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),  
                               refpos->lat, refpos->lon, 14);  
   } else {  
     /* no coordinates given: display the entire world */  
     osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),  
                               0.0, 0.0, 1);  
82    }    }
   
   return FALSE;  
83  }  }
84    
85  static GtkWidget  static int dist2pixel(map_context_t *context, float km, float lat) {
86  *map_add_button(const gchar *icon, GCallback cb, gpointer data,    return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
                 char *tooltip) {  
   GtkWidget *button = gtk_button_new();  
   gtk_button_set_image(GTK_BUTTON(button),  
                        gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));  
   g_signal_connect(button, "clicked", cb, data);  
 #ifndef USE_MAEMO  
   gtk_widget_set_tooltip_text(button, tooltip);  
 #endif  
   return button;  
87  }  }
88    
89  static gboolean map_gps_update(gpointer data) {  static gboolean map_gps_update(gpointer data) {
90    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
91    
92      /* get reference position ... */
93    pos_t *refpos = get_pos(context->appdata);    pos_t *refpos = get_pos(context->appdata);
94    gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);    gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
95    
96    /* get reference position and go there */    /* ... and enable "goto" button if it's valid */
97    gtk_widget_set_sensitive(context->gps, ok);    osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
98                     OSM_GPS_MAP_OSD_CALLBACK(ok?cb_map_gps:NULL), context);
99    
100      if(ok) {
101        float heading = NAN;
102        int radius = 0;
103    
104        if(context->appdata->use_gps) {
105          heading = gps_get_heading(context->appdata);
106    
107          /* get error */
108          float eph = gps_get_eph(context->appdata);
109          if(!isnan(eph))
110            radius = dist2pixel(context, eph/1000, refpos->lat);
111        }
112    
113        g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
114        osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
115                             refpos->lat, refpos->lon, heading);
116      } else
117        osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
118    
119    return TRUE;    return TRUE;
120  }  }
121    
# Line 136  static gboolean on_map_configure(GtkWidg Line 123  static gboolean on_map_configure(GtkWidg
123                                   GdkEventConfigure *event,                                   GdkEventConfigure *event,
124                                   map_context_t *context) {                                   map_context_t *context) {
125    
126    cb_map_gps(NULL, context);    /* set default values if they are invalid */
127      if(!context->appdata->map.zoom ||
128         isnan(context->appdata->map.pos.lat) ||
129         isnan(context->appdata->map.pos.lon)) {
130        printf("no valid map position found\n");
131    
132        pos_t *refpos = get_pos(context->appdata);
133        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
134          /* use gps position if present */
135          context->appdata->map.pos = *refpos;
136          context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
137        } else {
138          /* use world map otherwise */
139          context->appdata->map.pos.lat = 0.0;
140          context->appdata->map.pos.lon = 0.0;
141          context->appdata->map.zoom = 1;
142        }
143      }
144    
145      /* jump to initial position */
146      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
147                                context->appdata->map.pos.lat,
148                                context->appdata->map.pos.lon,
149                                context->appdata->map.zoom);
150    
151    return FALSE;    return FALSE;
152  }  }
# Line 152  static void map_draw_cachelist(GtkWidget Line 162  static void map_draw_cachelist(GtkWidget
162    }    }
163  }  }
164    
165  void map(appdata_t *appdata) {  static void
166    map_context_t context;  map_cachelist_nearest(cache_t *cache, pos_t *pos,
167    context.appdata = appdata;                        cache_t **result, float *distance) {
168      while(cache) {
169        float dist =
170          pow(cache->pos.lat - pos->lat, 2) +
171          pow(cache->pos.lon - pos->lon, 2);
172    
173        if(!(dist > *distance)) {
174          *result = cache;
175          *distance = dist;
176        }
177    
178    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),      cache = cache->next;
179                            GTK_WINDOW(appdata->window),    }
180                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,  }
                           GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,  
                           NULL);  
181    
182  #ifndef USE_MAEMO  static cache_t *map_closest(map_context_t *context, pos_t *pos) {
183    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    cache_t *result = NULL;
184      float distance = NAN;
185    
186    #ifdef USE_MAEMO
187      if(!context->appdata->cur_gpx) {
188    #endif
189        /* search all geocaches */
190        gpx_t *gpx = context->appdata->gpx;
191        while(gpx) {
192          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
193          gpx = gpx->next;
194        }
195    #ifdef USE_MAEMO
196      } else {
197        map_cachelist_nearest(context->appdata->cur_gpx->cache,
198                              pos, &result, &distance);
199      }
200    #endif
201    
202      return result;
203    }
204    
205    /* translate between osm-gps-map positions and gpxview ones */
206    pos_t coord2pos(coord_t coo) {
207      pos_t pos;
208      pos.lat = rad2deg(coo.rlat);
209      pos.lon = rad2deg(coo.rlon);
210      return pos;
211    }
212    
213    #define CLICK_FUZZ (24)
214    
215    static gboolean
216    on_map_button_press_event(GtkWidget *widget,
217                                GdkEventButton *event, map_context_t *context) {
218      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
219    
220      /* got a press event without release event? eat it! */
221      if(context->press_on != NULL) {
222        printf("PRESS: already\n");
223        return TRUE;
224      }
225    
226      pos_t pos =
227        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
228    
229      cache_t *nearest = map_closest(context, &pos);
230      if(nearest) {
231        float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
232        if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ)
233          context->press_on = nearest;
234      }
235    
236      return FALSE;
237    }
238    
239    static void
240    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
241      /* convert the pixbuf into something cairo can handle */
242    
243      // Create a new ImageSurface
244      cairo_surface_t *image_surface =
245        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
246                                   gdk_pixbuf_get_width(buf),
247                                   gdk_pixbuf_get_height(buf));
248    
249      // Create the new Context for the ImageSurface
250      cairo_t *context = cairo_create(image_surface);
251    
252      // Draw the image on the new Context
253      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
254      cairo_paint(context);
255    
256      // now draw this onto the original context
257      cairo_set_source_surface(cr, image_surface, x, y);
258    
259      cairo_paint(cr);
260    }
261    
262    #ifndef BIG_BALLOONS
263    #define LINE_SKIP  7
264    #else
265    #define LINE_SKIP  12
266    #endif
267    
268    static void
269    balloon_draw_cb(cairo_t *cr, OsmGpsMapRect_t *rect, gpointer data) {
270      cache_t *cache = (cache_t*)data;
271    
272      //  printf("draw cb for \"%s\"\n", cache->name);
273    
274    #if 0
275      /* draw pink background to check clipping */
276      cairo_rectangle (cr, rect->x-20, rect->y-20, rect->w+40, rect->h+40);
277      cairo_set_source_rgba (cr, 1, 0, 0, 0.3);
278      cairo_fill_preserve (cr);
279      cairo_set_line_width (cr, 0);
280      cairo_stroke (cr);
281    #endif
282    
283      /* leave a little border top and left */
284      gint x = rect->x, y = rect->y;
285    
286      /* draw the cache type icon ... */
287      GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
288      cairo_draw_pixbuf(cr, icon, x, y);
289    
290      /* ... and right of it the waypoint id */
291      cairo_text_extents_t extents;
292    
293      if(cache->id) {
294        cairo_select_font_face (cr, "Sans",
295                                CAIRO_FONT_SLANT_NORMAL,
296                                CAIRO_FONT_WEIGHT_BOLD);
297    
298    #ifndef BIG_BALLOONS
299        cairo_set_font_size (cr, 20.0);
300  #else  #else
301    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);      cairo_set_font_size (cr, 36.0);
302  #endif  #endif
303    
304    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);      cairo_text_extents (cr, cache->id, &extents);
305    
306        /* display id right of icon vertically centered */
307        x += gdk_pixbuf_get_width(icon) + 5;
308        y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
309        cairo_move_to (cr, x, y);
310        cairo_set_source_rgba (cr, 0, 0, 0, 1);
311        cairo_show_text (cr, cache->id);
312        cairo_stroke (cr);
313    
314        y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
315      } else
316        y += gdk_pixbuf_get_height(icon);
317    
318      /* return to the left border and below icon/text */
319      x = rect->x;
320    
321      /* everything from here uses the same font */
322      cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
323                              CAIRO_FONT_WEIGHT_NORMAL);
324    #ifndef BIG_BALLOONS
325      cairo_set_font_size (cr, 14.0);
326    #else
327      cairo_set_font_size (cr, 22.0);
328    #endif
329    
330      if(cache->name) {
331        /* draw cache name */
332        cairo_text_extents (cr, cache->name, &extents);
333        y += extents.height;
334        cairo_move_to (cr, x, y);
335        cairo_set_source_rgba (cr, 0, 0, 0, 1);
336        cairo_show_text (cr, cache->name);
337        cairo_stroke (cr);
338    
339        /* return to the left border and below text */
340        y += LINE_SKIP;
341        x = rect->x;
342      }
343    
344      if(cache->terrain) {
345        /* draw cache rating */
346        const char *terrain = "Terrain:";
347        icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
348        cairo_text_extents (cr, _(terrain), &extents);
349        y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
350    
351        /* draw "Terrain:" string */
352        cairo_move_to (cr, x, y);
353        cairo_set_source_rgba (cr, 0, 0, 0, 1);
354        cairo_show_text (cr, _(terrain));
355        cairo_stroke (cr);
356        x += extents.width + 2;
357    
358        /* draw terrain stars */
359        cairo_draw_pixbuf(cr, icon, x, y -
360                          (gdk_pixbuf_get_height(icon) + extents.height)/2);
361    
362        x += gdk_pixbuf_get_width(icon) + LINE_SKIP;
363        y -= (gdk_pixbuf_get_height(icon) + extents.height)/2;
364      }
365    
366      if(cache->difficulty) {
367        const char *difficulty = "Difficulty:";
368        cairo_text_extents (cr, _(difficulty), &extents);
369        y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
370    
371        /* draw "Difficulty:" string */
372        cairo_move_to (cr, x, y);
373        cairo_set_source_rgba (cr, 0, 0, 0, 1);
374        cairo_show_text (cr, _(difficulty));
375        cairo_stroke (cr);
376        x += extents.width + 2;
377    
378        icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
379        cairo_draw_pixbuf(cr, icon, x, y -
380                          (gdk_pixbuf_get_height(icon) + extents.height)/2);
381      }
382    }
383    
384    static gboolean
385    on_map_button_release_event(GtkWidget *widget,
386                                GdkEventButton *event, map_context_t *context) {
387      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
388    
389      if(context->press_on) {
390        coord_t coo;
391        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
392    
393        pos_t pos =
394          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
395    
396        cache_t *nearest = map_closest(context, &pos);
397        if(nearest && nearest == context->press_on) {
398          float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
399          if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) {
400    
401            osm_gps_map_draw_balloon(map, nearest->pos.lat, nearest->pos.lon,
402                                     balloon_draw_cb, nearest);
403          }
404        }
405        context->press_on = NULL;
406      } else {
407        /* save new map position */
408        gfloat lat, lon;
409        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
410        context->appdata->map.pos.lat = lat;
411        context->appdata->map.pos.lon = lon;
412      }
413    
414      return FALSE;
415    }
416    
417    static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
418      appdata_t *appdata = context->appdata;
419    
420      printf("destroy map window\n");
421    
422      /* save map parameters */
423      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
424      gint zoom;
425      g_object_get(map, "zoom", &zoom, NULL);
426      context->appdata->map.zoom = zoom;
427    
428      gfloat lat, lon;
429      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
430      context->appdata->map.pos.lat = lat;
431      context->appdata->map.pos.lon = lon;
432    
433    #if MAEMO_VERSION_MAJOR == 5
434      /* restore cur_view */
435      context->appdata->cur_view = context->old_view;
436    #endif
437    
438      gtk_timeout_remove(context->handler_id);
439    
440      g_free(context);
441      appdata->map.context = NULL;
442    }
443    
444    void map(appdata_t *appdata) {
445      map_context_t *context = NULL;
446    
447      /* if the map window already exists, just raise it */
448      if(appdata->map.context) {
449        gtk_window_present(GTK_WINDOW(appdata->map.context->window));
450        return;
451      }
452    
453      context = appdata->map.context = g_new0(map_context_t, 1);
454      context->appdata = appdata;
455    
456    char *path = g_strdup_printf("%s/map/", appdata->image_path);    char *path = g_strdup_printf("%s/map/", appdata->image_path);
457    const char *proxy = get_proxy_uri(appdata);    const char *proxy = get_proxy_uri(appdata);
458    
459    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
460                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "map-source",               MAP_SOURCE,
461                  "tile-cache", path,                   "tile-cache",               path,
462                  proxy?"proxy-uri":NULL, proxy,                   "auto-center",              FALSE,
463                     "record-trip-history",      FALSE,
464                     "show-trip-history",        FALSE,
465                     proxy?"proxy-uri":NULL,     proxy,
466                   NULL);                   NULL);
467    
468    g_free(path);    g_free(path);
469    
470    /* draw all geocaches */    osm_gps_map_osd_classic_init(OSM_GPS_MAP(context->widget));
471    gpx_t *gpx = appdata->gpx;  
472    while(gpx) {    char *name = NULL;
473      map_draw_cachelist(context.widget, gpx->cache);  #ifdef USE_MAEMO
474      gpx = gpx->next;    if(!appdata->cur_gpx) {
475    #endif
476        /* draw all geocaches */
477        gpx_t *gpx = appdata->gpx;
478        while(gpx) {
479          map_draw_cachelist(context->widget, gpx->cache);
480          gpx = gpx->next;
481        }
482        name = g_strdup(_("all geocaches"));
483    #ifdef USE_MAEMO
484      } else {
485        map_draw_cachelist(context->widget, appdata->cur_gpx->cache);
486        name = g_strdup(appdata->cur_gpx->name);
487    }    }
488    #endif
489    
490    g_signal_connect(G_OBJECT(context.widget), "configure-event",    char *title = g_strdup_printf(_("Map - %s"), name);
491                     G_CALLBACK(on_map_configure), &context);    g_free(name);
492  #if 0  
493    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  #ifdef USE_MAEMO
494                     G_CALLBACK(on_map_button_release_event), &context);  #ifdef USE_STACKABLE_WINDOW
495      context->window = hildon_stackable_window_new();
496    #else
497      context->window = hildon_window_new();
498    #endif
499    #else
500      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
501  #endif  #endif
502    
503    gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);    gtk_window_set_title(GTK_WINDOW(context->window), title);
   /* zoom button box */  
   GtkWidget *vbox = gtk_vbox_new(FALSE,0);  
   
   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);  
504    
505    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);  #ifndef USE_MAEMO
506      gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
507    #endif
508    
509    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    g_free(title);
510    
511    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "configure-event",
512                       G_CALLBACK(on_map_configure), context);
513    
514    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
515                       G_CALLBACK(on_map_button_press_event), context);
516    
517    gtk_dialog_run(GTK_DIALOG(dialog));    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
518                       G_CALLBACK(on_map_button_release_event), context);
519    gtk_timeout_remove(context.handler_id);  
520      /* install handler for timed updates of the gps button */
521      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
522    
523    #if MAEMO_VERSION_MAJOR == 5
524      /* prevent some of the main screen things */
525      context->old_view = appdata->cur_view;
526      appdata->cur_view = NULL;
527    #endif
528    
529      g_signal_connect(G_OBJECT(context->window), "destroy",
530                       G_CALLBACK(on_window_destroy), context);
531    
532    gtk_widget_destroy(dialog);    gtk_container_add(GTK_CONTAINER(context->window), context->widget);
533      gtk_widget_show_all(GTK_WIDGET(context->window));
534  }  }
Legend:
Removed from v.38  
changed lines
  Added in v.73