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

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revision 57 by harbaum, Sun Aug 16 19:29:01 2009 UTC revision 66 by harbaum, Wed Aug 19 20:03:28 2009 UTC
# 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
# Line 27  Line 28 
28  #define MAP_SOURCE  OSM_GPS_MAP_SOURCE_OPENSTREETMAP  #define MAP_SOURCE  OSM_GPS_MAP_SOURCE_OPENSTREETMAP
29  #define GPS_DEFAULT_ZOOM 13  #define GPS_DEFAULT_ZOOM 13
30    
 /* equatorial radius in meters */  
 #define EQ_RADIUS     (6378137.0)  
   
 #define RAD2DEG(a)  (((a)*180.0)/M_PI)  
 #define DEG2RAD(a)  (((a)*M_PI)/180.0)  
   
31  #define PROXY_KEY  "/system/http_proxy/"  #define PROXY_KEY  "/system/http_proxy/"
32    
33  static const char *get_proxy_uri(appdata_t *appdata) {  static const char *get_proxy_uri(appdata_t *appdata) {
# Line 71  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) {  static void
70    gint zoom;  cb_map_gps(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);  
   
   /* enable/disable zoom buttons as required */  
   gtk_widget_set_sensitive(context->zoomin,  
            zoom < osm_gps_map_source_get_max_zoom(MAP_SOURCE));  
   gtk_widget_set_sensitive(context->zoomout,  
            zoom > osm_gps_map_source_get_min_zoom(MAP_SOURCE));  
   
   /* hmm ... this doesn't really work */  
   osm_gps_map_osd_speed(map, zoom);  
   
   /* save new zoom */  
   context->appdata->map.zoom = zoom;  
 }  
   
 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) {  
71    pos_t *refpos = get_pos(context->appdata);    pos_t *refpos = get_pos(context->appdata);
72    if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {    if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
73      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
# Line 113  cb_map_gps(GtkButton *button, map_contex Line 77  cb_map_gps(GtkButton *button, map_contex
77      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),      osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
78                                0.0, 0.0, 1);                                0.0, 0.0, 1);
79    }    }
   
   return FALSE;  
 }  
   
 static GtkWidget  
 *map_add_button(int icon, GCallback cb, gpointer data,  
                 char *tooltip) {  
   GtkWidget *button = gtk_button_new();  
   gtk_button_set_image(GTK_BUTTON(button), icon_get_widget(ICON_MISC, icon));  
   g_signal_connect(button, "clicked", cb, data);  
 #ifndef USE_MAEMO  
   gtk_widget_set_tooltip_text(button, tooltip);  
 #endif  
   return button;  
80  }  }
81    
82  static int dist2pixel(map_context_t *context, float km, float lat) {  static int dist2pixel(map_context_t *context, float km, float lat) {
# Line 141  static gboolean map_gps_update(gpointer Line 91  static gboolean map_gps_update(gpointer
91    gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);    gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
92    
93    /* ... and enable "goto" button if it's valid */    /* ... and enable "goto" button if it's valid */
94    gtk_widget_set_sensitive(context->gps, ok);    osm_gps_map_osd_enable_gps (OSM_GPS_MAP(context->widget),
95                                  OSM_GPS_MAP_OSD_GPS_CALLBACK(ok?cb_map_gps:NULL), context);
96    
97    if(ok) {    if(ok) {
98      float heading = NAN;      float heading = NAN;
# Line 251  static cache_t *map_closest(map_context_ Line 202  static cache_t *map_closest(map_context_
202  /* translate between osm-gps-map positions and gpxview ones */  /* translate between osm-gps-map positions and gpxview ones */
203  pos_t coord2pos(coord_t coo) {  pos_t coord2pos(coord_t coo) {
204    pos_t pos;    pos_t pos;
205    pos.lat = RAD2DEG(coo.rlat);    pos.lat = rad2deg(coo.rlat);
206    pos.lon = RAD2DEG(coo.rlon);    pos.lon = rad2deg(coo.rlon);
207    return pos;    return pos;
208  }  }
209    
# Line 282  on_map_button_press_event(GtkWidget *wid Line 233  on_map_button_press_event(GtkWidget *wid
233    return FALSE;    return FALSE;
234  }  }
235    
236    static void
237    cairo_draw_pixbuf(cairo_t *cr, GdkPixbuf *buf, gint x, gint y) {
238      /* convert the pixbuf into something cairo can handle */
239    
240      // Create a new ImageSurface
241      cairo_surface_t *image_surface =
242        cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
243                                   gdk_pixbuf_get_width(buf),
244                                   gdk_pixbuf_get_height(buf));
245    
246      // Create the new Context for the ImageSurface
247      cairo_t *context = cairo_create(image_surface);
248    
249      // Draw the image on the new Context
250      gdk_cairo_set_source_pixbuf(context, buf, 0.0, 0.0);
251      cairo_paint(context);
252    
253      // now draw this onto the original context
254      cairo_set_source_surface(cr, image_surface, x, y);
255    
256      cairo_paint(cr);
257    }
258    
259    #ifndef BIG_BALLOONS
260    #define LINE_SKIP  7
261    #else
262    #define LINE_SKIP  12
263    #endif
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    #ifndef BIG_BALLOONS
296        cairo_set_font_size (cr, 20.0);
297    #else
298        cairo_set_font_size (cr, 36.0);
299    #endif
300    
301        cairo_text_extents (cr, cache->id, &extents);
302    
303        /* display id right of icon vertically centered */
304        x += gdk_pixbuf_get_width(icon) + 5;
305        y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
306        cairo_move_to (cr, x, y);
307        cairo_set_source_rgba (cr, 0, 0, 0, 1);
308        cairo_show_text (cr, cache->id);
309        cairo_stroke (cr);
310    
311        y += (gdk_pixbuf_get_height(icon) - extents.height)/2 + LINE_SKIP;
312      } else
313        y += gdk_pixbuf_get_height(icon);
314    
315      /* return to the left border and below icon/text */
316      x = rect->x;
317    
318      /* everything from here uses the same font */
319      cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
320                              CAIRO_FONT_WEIGHT_NORMAL);
321    #ifndef BIG_BALLOONS
322      cairo_set_font_size (cr, 14.0);
323    #else
324      cairo_set_font_size (cr, 22.0);
325    #endif
326    
327      if(cache->name) {
328        /* draw cache name */
329        cairo_text_extents (cr, cache->name, &extents);
330        y += extents.height;
331        cairo_move_to (cr, x, y);
332        cairo_set_source_rgba (cr, 0, 0, 0, 1);
333        cairo_show_text (cr, cache->name);
334        cairo_stroke (cr);
335    
336        /* return to the left border and below text */
337        y += LINE_SKIP;
338        x = rect->x;
339      }
340    
341      if(cache->terrain) {
342        /* draw cache rating */
343        const char *terrain = "Terrain:";
344        icon = icon_get(ICON_STARS, (int)(cache->terrain*2-2));
345        cairo_text_extents (cr, _(terrain), &extents);
346        y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
347    
348        /* draw "Terrain:" string */
349        cairo_move_to (cr, x, y);
350        cairo_set_source_rgba (cr, 0, 0, 0, 1);
351        cairo_show_text (cr, _(terrain));
352        cairo_stroke (cr);
353        x += extents.width + 2;
354    
355        /* draw terrain stars */
356        cairo_draw_pixbuf(cr, icon, x, y -
357                          (gdk_pixbuf_get_height(icon) + extents.height)/2);
358    
359        x += gdk_pixbuf_get_width(icon) + LINE_SKIP;
360        y -= (gdk_pixbuf_get_height(icon) + extents.height)/2;
361      }
362    
363      if(cache->difficulty) {
364        const char *difficulty = "Difficulty:";
365        cairo_text_extents (cr, _(difficulty), &extents);
366        y += (gdk_pixbuf_get_height(icon) + extents.height)/2;
367    
368        /* draw "Difficulty:" string */
369        cairo_move_to (cr, x, y);
370        cairo_set_source_rgba (cr, 0, 0, 0, 1);
371        cairo_show_text (cr, _(difficulty));
372        cairo_stroke (cr);
373        x += extents.width + 2;
374    
375        icon = icon_get(ICON_STARS, (int)(cache->difficulty*2-2));
376        cairo_draw_pixbuf(cr, icon, x, y -
377                          (gdk_pixbuf_get_height(icon) + extents.height)/2);
378      }
379    }
380    
381  static gboolean  static gboolean
382  on_map_button_release_event(GtkWidget *widget,  on_map_button_release_event(GtkWidget *widget,
383                              GdkEventButton *event, map_context_t *context) {                              GdkEventButton *event, map_context_t *context) {
# Line 299  on_map_button_release_event(GtkWidget *w Line 395  on_map_button_release_event(GtkWidget *w
395        float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);        float dist = gpx_pos_get_distance(pos, nearest->pos, FALSE);
396        if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) {        if(dist2pixel(context, dist, nearest->pos.lat) < CLICK_FUZZ) {
397    
398          osm_gps_map_draw_balloon(map, nearest->pos.lat, nearest->pos.lon);          osm_gps_map_draw_balloon(map, nearest->pos.lat, nearest->pos.lon,
399                                     balloon_draw_cb, nearest);
400        }        }
401      }      }
402      context->press_on = NULL;      context->press_on = NULL;
# Line 353  void map(appdata_t *appdata) { Line 450  void map(appdata_t *appdata) {
450    context = appdata->map.context = g_new0(map_context_t, 1);    context = appdata->map.context = g_new0(map_context_t, 1);
451    context->appdata = appdata;    context->appdata = appdata;
452    
   GtkWidget *hbox = gtk_hbox_new(FALSE, 0);  
   
453    char *path = g_strdup_printf("%s/map/", appdata->image_path);    char *path = g_strdup_printf("%s/map/", appdata->image_path);
454    const char *proxy = get_proxy_uri(appdata);    const char *proxy = get_proxy_uri(appdata);
455    
# Line 417  void map(appdata_t *appdata) { Line 512  void map(appdata_t *appdata) {
512    g_signal_connect(G_OBJECT(context->widget), "button-release-event",    g_signal_connect(G_OBJECT(context->widget), "button-release-event",
513                     G_CALLBACK(on_map_button_release_event), context);                     G_CALLBACK(on_map_button_release_event), context);
514    
   gtk_box_pack_start_defaults(GTK_BOX(hbox), context->widget);  
   /* zoom button box */  
   GtkWidget *vbox = gtk_vbox_new(FALSE,0);  
   
   context->zoomin =  
     map_add_button(10, 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(11, 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(9, G_CALLBACK(cb_map_gps),  
                    context, _("Jump to GPS position"));  
   gtk_widget_set_sensitive(context->gps, FALSE);  
   
515    /* install handler for timed updates of the gps button */    /* install handler for timed updates of the gps button */
516    context->handler_id = gtk_timeout_add(1000, map_gps_update, context);    context->handler_id = gtk_timeout_add(1000, map_gps_update, context);
   gtk_box_pack_start(GTK_BOX(vbox), context->gps, FALSE, FALSE, 0);  
   
   gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);  
517    
518  #if MAEMO_VERSION_MAJOR == 5  #if MAEMO_VERSION_MAJOR == 5
519    /* prevent some of the main screen things */    /* prevent some of the main screen things */
# Line 451  void map(appdata_t *appdata) { Line 524  void map(appdata_t *appdata) {
524    g_signal_connect(G_OBJECT(context->window), "destroy",    g_signal_connect(G_OBJECT(context->window), "destroy",
525                     G_CALLBACK(on_window_destroy), context);                     G_CALLBACK(on_window_destroy), context);
526    
527    gtk_container_add(GTK_CONTAINER(context->window), hbox);    gtk_container_add(GTK_CONTAINER(context->window), context->widget);
528    gtk_widget_show_all(GTK_WIDGET(context->window));    gtk_widget_show_all(GTK_WIDGET(context->window));
529  }  }
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