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 63 by harbaum, Wed Aug 19 12:35:25 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  #endif  #endif
27    
28  typedef struct {  #define MAP_SOURCE  OSM_GPS_MAP_SOURCE_OPENSTREETMAP
29    appdata_t *appdata;  #define GPS_DEFAULT_ZOOM 13
   GtkWidget *widget;  
   GtkWidget *zoomin, *zoomout, *gps;  
   gint handler_id;  
 } map_context_t;  
30    
31  #define PROXY_KEY  "/system/http_proxy/"  #define PROXY_KEY  "/system/http_proxy/"
32    
# Line 69  static const char *get_proxy_uri(appdata Line 66  static const char *get_proxy_uri(appdata
66    return NULL;    return NULL;
67  }  }
68    
69  static void map_zoom(map_context_t *context, int step) {  /* TODO: This needs to be wired to the GPS button in osm_gps_map */
70    int zoom;  #if 0
   OsmGpsMap *map = OSM_GPS_MAP(context->widget);  
   g_object_get(map, "zoom", &zoom, NULL);  
   zoom = osm_gps_map_set_zoom(map, zoom+step);  
   
   /* enable/disable zoom buttons as required */  
   gtk_widget_set_sensitive(context->zoomin, zoom<17);  
   gtk_widget_set_sensitive(context->zoomout, zoom>1);  
 }  
   
 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;  
 }  
   
71  static gboolean  static gboolean
72  cb_map_gps(GtkButton *button, map_context_t *context) {  cb_map_gps(GtkButton *button, map_context_t *context) {
73    pos_t *refpos = get_pos(context->appdata);    pos_t *refpos = get_pos(context->appdata);
74    if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {    if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
75      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
76                                refpos->lat, refpos->lon, 14);                        refpos->lat, refpos->lon, GPS_DEFAULT_ZOOM);
77    } else {    } else {
78      /* no coordinates given: display the entire world */      /* no coordinates given: display the entire world */
79      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
# Line 106  cb_map_gps(GtkButton *button, map_contex Line 82  cb_map_gps(GtkButton *button, map_contex
82    
83    return FALSE;    return FALSE;
84  }  }
   
 static GtkWidget  
 *map_add_button(const gchar *icon, GCallback cb, gpointer data,  
                 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);  
85  #endif  #endif
86    return button;  
87    static int dist2pixel(map_context_t *context, float km, float lat) {
88      return 1000.0*km/osm_gps_map_get_scale(OSM_GPS_MAP(context->widget));
89  }  }
90    
91  static gboolean map_gps_update(gpointer data) {  static gboolean map_gps_update(gpointer data) {
92    map_context_t *context = (map_context_t*)data;    map_context_t *context = (map_context_t*)data;
93    
94      /* get reference position ... */
95    pos_t *refpos = get_pos(context->appdata);    pos_t *refpos = get_pos(context->appdata);
96    gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);    gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
97    
98    /* get reference position and go there */    /* ... and enable "goto" button if it's valid */
99    gtk_widget_set_sensitive(context->gps, ok);    /* TODO: gtk_widget_set_sensitive(context->gps, ok); */
100    
101      if(ok) {
102        float heading = NAN;
103        int radius = 0;
104    
105        if(context->appdata->use_gps) {
106          heading = gps_get_heading(context->appdata);
107    
108          /* get error */
109          float eph = gps_get_eph(context->appdata);
110          if(!isnan(eph))
111            radius = dist2pixel(context, eph/1000, refpos->lat);
112        }
113    
114        g_object_set(context->widget, "gps-track-highlight-radius", radius, NULL);
115        osm_gps_map_draw_gps(OSM_GPS_MAP(context->widget),
116                             refpos->lat, refpos->lon, heading);
117      } else
118        osm_gps_map_clear_gps(OSM_GPS_MAP(context->widget));
119    
120    return TRUE;    return TRUE;
121  }  }
122    
# Line 136  static gboolean on_map_configure(GtkWidg Line 124  static gboolean on_map_configure(GtkWidg
124                                   GdkEventConfigure *event,                                   GdkEventConfigure *event,
125                                   map_context_t *context) {                                   map_context_t *context) {
126    
127    cb_map_gps(NULL, context);    /* set default values if they are invalid */
128      if(!context->appdata->map.zoom ||
129         isnan(context->appdata->map.pos.lat) ||
130         isnan(context->appdata->map.pos.lon)) {
131        printf("no valid map position found\n");
132    
133        pos_t *refpos = get_pos(context->appdata);
134        if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
135          /* use gps position if present */
136          context->appdata->map.pos = *refpos;
137          context->appdata->map.zoom = GPS_DEFAULT_ZOOM;
138        } else {
139          /* use world map otherwise */
140          context->appdata->map.pos.lat = 0.0;
141          context->appdata->map.pos.lon = 0.0;
142          context->appdata->map.zoom = 1;
143        }
144      }
145    
146      /* jump to initial position */
147      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
148                                context->appdata->map.pos.lat,
149                                context->appdata->map.pos.lon,
150                                context->appdata->map.zoom);
151    
152    return FALSE;    return FALSE;
153  }  }
154    
# Line 152  static void map_draw_cachelist(GtkWidget Line 163  static void map_draw_cachelist(GtkWidget
163    }    }
164  }  }
165    
166  void map(appdata_t *appdata) {  static void
167    map_context_t context;  map_cachelist_nearest(cache_t *cache, pos_t *pos,
168    context.appdata = appdata;                        cache_t **result, float *distance) {
169      while(cache) {
170        float dist =
171          pow(cache->pos.lat - pos->lat, 2) +
172          pow(cache->pos.lon - pos->lon, 2);
173    
174        if(!(dist > *distance)) {
175          *result = cache;
176          *distance = dist;
177        }
178    
179    GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),      cache = cache->next;
180                            GTK_WINDOW(appdata->window),    }
181                            GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,  }
                           GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,  
                           NULL);  
182    
183  #ifndef USE_MAEMO  static cache_t *map_closest(map_context_t *context, pos_t *pos) {
184    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);    cache_t *result = NULL;
185  #else    float distance = NAN;
186    gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);  
187    #ifdef USE_MAEMO
188      if(!context->appdata->cur_gpx) {
189    #endif
190        /* search all geocaches */
191        gpx_t *gpx = context->appdata->gpx;
192        while(gpx) {
193          map_cachelist_nearest(gpx->cache, pos, &result, &distance);
194          gpx = gpx->next;
195        }
196    #ifdef USE_MAEMO
197      } else {
198        map_cachelist_nearest(context->appdata->cur_gpx->cache,
199                              pos, &result, &distance);
200      }
201  #endif  #endif
202    
203    GtkWidget *hbox = gtk_hbox_new(FALSE, 0);    return result;
204    }
205    
206    /* translate between osm-gps-map positions and gpxview ones */
207    pos_t coord2pos(coord_t coo) {
208      pos_t pos;
209      pos.lat = rad2deg(coo.rlat);
210      pos.lon = rad2deg(coo.rlon);
211      return pos;
212    }
213    
214    #define CLICK_FUZZ (24)
215    
216    static gboolean
217    on_map_button_press_event(GtkWidget *widget,
218                                GdkEventButton *event, map_context_t *context) {
219      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
220    
221      /* got a press event without release event? eat it! */
222      if(context->press_on != NULL) {
223        printf("PRESS: already\n");
224        return TRUE;
225      }
226    
227      pos_t pos =
228        coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
229    
230      cache_t *nearest = map_closest(context, &pos);
231      if(nearest) {
232        float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
233        if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ)
234          context->press_on = nearest;
235      }
236    
237      return FALSE;
238    }
239    
240    static void
241    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
242      /* convert the pixbuf into something cairo can handle */
243    
244      // Create a new ImageSurface
245      cairo_surface_t *image_surface =
246        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
247                                   gdk_pixbuf_get_width(buf),
248                                   gdk_pixbuf_get_height(buf));
249    
250      // Create the new Context for the ImageSurface
251      cairo_t *context = cairo_create(image_surface);
252    
253      // Draw the image on the new Context
254      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
255      cairo_paint(context);
256    
257      // now draw this onto the original context
258      cairo_set_source_surface(cr, image_surface, x, y);
259    
260      cairo_paint(cr);
261    }
262    
263    #define LINE_SKIP  7
264    
265    static void
266    balloon_draw_cb(cairo_t *cr, OsmGpsMapRect_t *rect, gpointer data) {
267      cache_t *cache = (cache_t*)data;
268    
269      //  printf("draw cb for \"%s\"\n", cache->name);
270    
271    #if 0
272      /* draw pink background to check clipping */
273      cairo_rectangle (cr, rect->x-20, rect->y-20, rect->w+40, rect->h+40);
274      cairo_set_source_rgba (cr, 1, 0, 0, 0.3);
275      cairo_fill_preserve (cr);
276      cairo_set_line_width (cr, 0);
277      cairo_stroke (cr);
278    #endif
279    
280      /* leave a little border top and left */
281      gint x = rect->x, y = rect->y;
282    
283      /* draw the cache type icon ... */
284      GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
285      cairo_draw_pixbuf(cr, icon, x, y);
286    
287      /* ... and right of it the waypoint id */
288      cairo_text_extents_t extents;
289    
290      if(cache->id) {
291        cairo_select_font_face (cr, "Sans",
292                                CAIRO_FONT_SLANT_NORMAL,
293                                CAIRO_FONT_WEIGHT_BOLD);
294    
295        cairo_set_font_size (cr, 20.0);
296        cairo_text_extents (cr, cache->id, &extents);
297    
298        /* display id right of icon vertically centered */
299        x += gdk_pixbuf_get_width(icon) + 5;
300        y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
301        cairo_move_to (cr, x, y);
302        cairo_set_source_rgba (cr, 0, 0, 0, 1);
303        cairo_show_text (cr, cache->id);
304        cairo_stroke (cr);
305    
306        y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
307      } else
308        y += gdk_pixbuf_get_height(icon);
309    
310      /* return to the left border and below icon/text */
311      x = rect->x;
312    
313      /* everything from here uses the same font */
314      cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
315                              CAIRO_FONT_WEIGHT_NORMAL);
316      cairo_set_font_size (cr, 14.0);
317    
318      if(cache->name) {
319        /* draw cache name */
320        cairo_text_extents (cr, cache->name, &extents);
321        y += extents.height;
322        cairo_move_to (cr, x, y);
323        cairo_set_source_rgba (cr, 0, 0, 0, 1);
324        cairo_show_text (cr, cache->name);
325        cairo_stroke (cr);
326    
327        /* return to the left border and below text */
328        y += LINE_SKIP;
329        x = rect->x;
330      }
331    
332      if(cache->terrain) {
333        /* draw cache rating */
334        const char *terrain = "Terrain:";
335        icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
336        cairo_text_extents (cr, _(terrain), &extents);
337        y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
338    
339        /* draw "Terrain:" string */
340        cairo_move_to (cr, x, y);
341        cairo_set_source_rgba (cr, 0, 0, 0, 1);
342        cairo_show_text (cr, _(terrain));
343        cairo_stroke (cr);
344        x += extents.width + 2;
345    
346        /* draw terrain stars */
347        cairo_draw_pixbuf(cr, icon, x, y -
348                          (gdk_pixbuf_get_height(icon) + extents.height)/2);
349    
350        x += gdk_pixbuf_get_width(icon) + LINE_SKIP;
351        y -= (gdk_pixbuf_get_height(icon) + extents.height)/2;
352      }
353    
354      if(cache->difficulty) {
355        const char *difficulty = "Difficulty:";
356        cairo_text_extents (cr, _(difficulty), &extents);
357        y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
358    
359        /* draw "Difficulty:" string */
360        cairo_move_to (cr, x, y);
361        cairo_set_source_rgba (cr, 0, 0, 0, 1);
362        cairo_show_text (cr, _(difficulty));
363        cairo_stroke (cr);
364        x += extents.width + 2;
365    
366        icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
367        cairo_draw_pixbuf(cr, icon, x, y -
368                          (gdk_pixbuf_get_height(icon) + extents.height)/2);
369      }
370    }
371    
372    static gboolean
373    on_map_button_release_event(GtkWidget *widget,
374                                GdkEventButton *event, map_context_t *context) {
375      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
376    
377      if(context->press_on) {
378        coord_t coo;
379        coo = osm_gps_map_get_co_ordinates(map, event->x, event->y);
380    
381        pos_t pos =
382          coord2pos(osm_gps_map_get_co_ordinates(map, event->x, event->y));
383    
384        cache_t *nearest = map_closest(context, &pos);
385        if(nearest && nearest == context->press_on) {
386          float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
387          if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) {
388    
389            osm_gps_map_draw_balloon(map, nearest->pos.lat, nearest->pos.lon,
390                                     balloon_draw_cb, nearest);
391          }
392        }
393        context->press_on = NULL;
394      } else {
395        /* save new map position */
396        gfloat lat, lon;
397        g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
398        context->appdata->map.pos.lat = lat;
399        context->appdata->map.pos.lon = lon;
400      }
401    
402      return FALSE;
403    }
404    
405    static void on_window_destroy(GtkWidget *widget, map_context_t *context) {
406      appdata_t *appdata = context->appdata;
407    
408      printf("destroy map window\n");
409    
410      /* save map parameters */
411      OsmGpsMap *map = OSM_GPS_MAP(context->widget);
412      gint zoom;
413      g_object_get(map, "zoom", &zoom, NULL);
414      context->appdata->map.zoom = zoom;
415    
416      gfloat lat, lon;
417      g_object_get(map, "latitude", &lat, "longitude", &lon, NULL);
418      context->appdata->map.pos.lat = lat;
419      context->appdata->map.pos.lon = lon;
420    
421    #if MAEMO_VERSION_MAJOR == 5
422      /* restore cur_view */
423      context->appdata->cur_view = context->old_view;
424    #endif
425    
426      gtk_timeout_remove(context->handler_id);
427    
428      g_free(context);
429      appdata->map.context = NULL;
430    }
431    
432    void map(appdata_t *appdata) {
433      map_context_t *context = NULL;
434    
435      /* if the map window already exists, just raise it */
436      if(appdata->map.context) {
437        gtk_window_present(GTK_WINDOW(appdata->map.context->window));
438        return;
439      }
440    
441      context = appdata->map.context = g_new0(map_context_t, 1);
442      context->appdata = appdata;
443    
444    char *path = g_strdup_printf("%s/map/", appdata->image_path);    char *path = g_strdup_printf("%s/map/", appdata->image_path);
445    const char *proxy = get_proxy_uri(appdata);    const char *proxy = get_proxy_uri(appdata);
446    
447    context.widget = g_object_new(OSM_TYPE_GPS_MAP,    context->widget = g_object_new(OSM_TYPE_GPS_MAP,
448                  "repo-uri", MAP_SOURCE_OPENSTREETMAP,                   "map-source",               MAP_SOURCE,
449                  "tile-cache", path,                   "tile-cache",               path,
450                  proxy?"proxy-uri":NULL, proxy,                   "auto-center",              FALSE,
451                     "record-trip-history",      FALSE,
452                     "show-trip-history",        FALSE,
453                     proxy?"proxy-uri":NULL,     proxy,
454                   NULL);                   NULL);
455    
456    g_free(path);    g_free(path);
457    
458    /* draw all geocaches */    char *name = NULL;
459    gpx_t *gpx = appdata->gpx;  #ifdef USE_MAEMO
460    while(gpx) {    if(!appdata->cur_gpx) {
461      map_draw_cachelist(context.widget, gpx->cache);  #endif
462      gpx = gpx->next;      /* draw all geocaches */
463        gpx_t *gpx = appdata->gpx;
464        while(gpx) {
465          map_draw_cachelist(context->widget, gpx->cache);
466          gpx = gpx->next;
467        }
468        name = g_strdup(_("all geocaches"));
469    #ifdef USE_MAEMO
470      } else {
471        map_draw_cachelist(context->widget, appdata->cur_gpx->cache);
472        name = g_strdup(appdata->cur_gpx->name);
473    }    }
474    #endif
475    
476    g_signal_connect(G_OBJECT(context.widget), "configure-event",    char *title = g_strdup_printf(_("Map - %s"), name);
477                     G_CALLBACK(on_map_configure), &context);    g_free(name);
478  #if 0  
479    g_signal_connect(G_OBJECT(context.widget), "button-release-event",  #ifdef USE_MAEMO
480                     G_CALLBACK(on_map_button_release_event), &context);  #ifdef USE_STACKABLE_WINDOW
481      context->window = hildon_stackable_window_new();
482    #else
483      context->window = hildon_window_new();
484    #endif
485    #else
486      context->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
487  #endif  #endif
488    
489    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);  
490    
491    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);  #ifndef USE_MAEMO
492      gtk_window_set_default_size(GTK_WINDOW(context->window), 640, 480);
493    #endif
494    
495    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);    g_free(title);
496    
497    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);    g_signal_connect(G_OBJECT(context->widget), "configure-event",
498                       G_CALLBACK(on_map_configure), context);
499    
500    gtk_widget_show_all(dialog);    g_signal_connect(G_OBJECT(context->widget), "button-press-event",
501                       G_CALLBACK(on_map_button_press_event), context);
502    
503    gtk_dialog_run(GTK_DIALOG(dialog));    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
504                       G_CALLBACK(on_map_button_release_event), context);
505    gtk_timeout_remove(context.handler_id);  
506      /* TODO: gtk_widget_set_sensitive(context->gps, FALSE); */
507    
508      /* install handler for timed updates of the gps button */
509      context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
510    
511    #if MAEMO_VERSION_MAJOR == 5
512      /* prevent some of the main screen things */
513      context->old_view = appdata->cur_view;
514      appdata->cur_view = NULL;
515    #endif
516    
517      g_signal_connect(G_OBJECT(context->window), "destroy",
518                       G_CALLBACK(on_window_destroy), context);
519    
520    gtk_widget_destroy(dialog);    gtk_container_add(GTK_CONTAINER(context->window), context->widget);
521      gtk_widget_show_all(GTK_WIDGET(context->window));
522  }  }
Legend:
Removed from v.38  
changed lines
  Added in v.63