Diff of /trunk/src/osm-gps-map-osd-classic.c

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revision 121 by harbaum, Sun Sep 20 19:26:29 2009 UTC revision 123 by harbaum, Wed Sep 23 11:23:45 2009 UTC
# Line 76  typedef struct { Line 76  typedef struct {
76      } crosshair;      } crosshair;
77  #endif  #endif
78    
79    #ifdef OSD_NAV
80        struct {
81            cairo_surface_t *surface;
82            float lat, lon;
83            char *name;
84        } nav;
85    #endif
86    
87  #ifdef OSD_COORDINATES  #ifdef OSD_COORDINATES
88      struct {      struct {
89          cairo_surface_t *surface;          cairo_surface_t *surface;
# Line 1122  static char Line 1130  static char
1130  }  }
1131    
1132  static void  static void
1133    osd_render_text(cairo_t *cr, int x, int y, char *text) {
1134        cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
1135        cairo_set_line_width (cr, OSD_COORDINATES_FONT_SIZE/6);
1136        cairo_move_to (cr, x, y);
1137        cairo_text_path (cr, text);
1138        cairo_stroke (cr);
1139    
1140        cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
1141        cairo_move_to (cr, x, y);
1142        cairo_show_text (cr, text);
1143    }
1144    
1145    static void
1146  osd_render_coordinates(osm_gps_map_osd_t *osd)  osd_render_coordinates(osm_gps_map_osd_t *osd)
1147  {  {
1148      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
# Line 1159  osd_render_coordinates(osm_gps_map_osd_t Line 1180  osd_render_coordinates(osm_gps_map_osd_t
1180      cairo_text_extents_t lat_extents, lon_extents;      cairo_text_extents_t lat_extents, lon_extents;
1181      cairo_text_extents (cr, latitude, &lat_extents);      cairo_text_extents (cr, latitude, &lat_extents);
1182      cairo_text_extents (cr, longitude, &lon_extents);      cairo_text_extents (cr, longitude, &lon_extents);
1183    
1184        osd_render_text(cr,
1185                        (OSD_COORDINATES_W - lat_extents.width)/2,
1186                        OSD_COORDINATES_OFFSET - lat_extents.y_bearing,
1187                        latitude);
1188    
1189        osd_render_text(cr,
1190                        (OSD_COORDINATES_W - lon_extents.width)/2,
1191                        OSD_COORDINATES_OFFSET - lon_extents.y_bearing +
1192                        OSD_COORDINATES_FONT_SIZE,
1193                        longitude);
1194    
1195        g_free(latitude);
1196        g_free(longitude);
1197    
1198      cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);      cairo_destroy(cr);
1199      cairo_set_line_width (cr, OSD_COORDINATES_FONT_SIZE/6);  }
1200      cairo_move_to (cr,  #endif  // OSD_COORDINATES
                    (OSD_COORDINATES_W - lat_extents.width)/2,  
                    OSD_COORDINATES_OFFSET - lat_extents.y_bearing);  
     cairo_text_path (cr, latitude);  
     cairo_move_to (cr,  
                    (OSD_COORDINATES_W - lon_extents.width)/2,  
                    OSD_COORDINATES_OFFSET - lon_extents.y_bearing +  
                    OSD_COORDINATES_FONT_SIZE);  
     cairo_text_path (cr, longitude);  
     cairo_stroke (cr);  
1201    
1202      cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);  #ifdef OSD_NAV
1203      cairo_move_to (cr,  #define OSD_NAV_W  (8*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET)
1204                     (OSD_COORDINATES_W - lat_extents.width)/2,  #define OSD_NAV_H  (100)
1205                     OSD_COORDINATES_OFFSET - lat_extents.y_bearing);  
1206      cairo_show_text (cr, latitude);  static void
1207      cairo_move_to (cr,  osd_render_nav(osm_gps_map_osd_t *osd)
1208                     (OSD_COORDINATES_W - lon_extents.width)/2,  {
1209                     OSD_COORDINATES_OFFSET - lon_extents.y_bearing +      osd_priv_t *priv = (osd_priv_t*)osd->priv;
1210                     OSD_COORDINATES_FONT_SIZE);  
1211      cairo_show_text (cr, longitude);      if(!priv->nav.surface || isnan(priv->nav.lat) || isnan(priv->nav.lon))
1212            return;
1213    
1214        /* first fill with transparency */
1215        cairo_t *cr = cairo_create(priv->nav.surface);
1216        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1217        cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.2);
1218        cairo_paint(cr);
1219        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
1220    
1221        cairo_select_font_face (cr, "Sans",
1222                                CAIRO_FONT_SLANT_NORMAL,
1223                                CAIRO_FONT_WEIGHT_BOLD);
1224        cairo_set_font_size (cr, OSD_COORDINATES_FONT_SIZE);
1225    
1226        char *latitude = osd_latitude_str(priv->nav.lat);
1227        char *longitude = osd_longitude_str(priv->nav.lon);
1228    
1229        cairo_text_extents_t lat_extents, lon_extents, name_extents;
1230        cairo_text_extents (cr, priv->nav.name, &name_extents);
1231        cairo_text_extents (cr, latitude, &lat_extents);
1232        cairo_text_extents (cr, longitude, &lon_extents);
1233    
1234        osd_render_text(cr,
1235                        (OSD_NAV_W - name_extents.width)/2,
1236                        OSD_COORDINATES_OFFSET - name_extents.y_bearing,
1237                        priv->nav.name);
1238    
1239        osd_render_text(cr,
1240                        (OSD_NAV_W - lat_extents.width)/2,
1241                        OSD_COORDINATES_OFFSET - lat_extents.y_bearing +
1242                        OSD_COORDINATES_FONT_SIZE,
1243                        latitude);
1244    
1245        osd_render_text(cr,
1246                        (OSD_NAV_W - lon_extents.width)/2,
1247                        OSD_COORDINATES_OFFSET - lon_extents.y_bearing +
1248                        2 * OSD_COORDINATES_FONT_SIZE,
1249                        longitude);
1250    
1251      g_free(latitude);      g_free(latitude);
1252      g_free(longitude);      g_free(longitude);
1253    
1254      cairo_destroy(cr);      cairo_destroy(cr);
1255  }  }
1256  #endif  // OSD_COORDINATES  
1257    void osm_gps_map_osd_clear_nav (OsmGpsMap *map) {
1258        g_return_if_fail (OSM_IS_GPS_MAP (map));
1259    
1260        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
1261        g_return_if_fail (osd);
1262    
1263        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1264        g_return_if_fail (priv);
1265    
1266        if(priv->nav.surface) {
1267            cairo_surface_destroy(priv->nav.surface);
1268            priv->nav.surface = NULL;
1269            priv->nav.lat = OSM_GPS_MAP_INVALID;
1270            priv->nav.lon = OSM_GPS_MAP_INVALID;
1271            if(priv->nav.name) g_free(priv->nav.name);
1272        }
1273        osm_gps_map_redraw(map);
1274    }
1275    
1276    void
1277    osm_gps_map_osd_draw_nav (OsmGpsMap *map, float latitude, float longitude,
1278                              char *name) {
1279        g_return_if_fail (OSM_IS_GPS_MAP (map));
1280    
1281        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
1282        g_return_if_fail (osd);
1283    
1284        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1285        g_return_if_fail (priv);
1286    
1287        osm_gps_map_osd_clear_nav (map);
1288    
1289        /* allocate balloon surface */
1290        priv->nav.surface =
1291            cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1292                                       OSD_NAV_W+2, OSD_NAV_H+2);
1293    
1294        priv->nav.lat = latitude;
1295        priv->nav.lon = longitude;
1296        priv->nav.name = g_strdup(name);
1297    
1298        osd_render_nav(osd);
1299    
1300        osm_gps_map_redraw(map);
1301    }
1302    
1303    #endif // OSD_NAV
1304    
1305    
1306  #ifdef OSD_CROSSHAIR  #ifdef OSD_CROSSHAIR
1307    
# Line 1518  osd_render(osm_gps_map_osd_t *osd) Line 1630  osd_render(osm_gps_map_osd_t *osd)
1630      osd_render_crosshair(osd);      osd_render_crosshair(osd);
1631  #endif  #endif
1632    
1633    #ifdef OSD_NAV
1634        osd_render_nav(osd);
1635    #endif
1636    
1637  #ifdef OSD_COORDINATES  #ifdef OSD_COORDINATES
1638      osd_render_coordinates(osd);      osd_render_coordinates(osd);
1639  #endif  #endif
# Line 1597  osd_draw(osm_gps_map_osd_t *osd, GdkDraw Line 1713  osd_draw(osm_gps_map_osd_t *osd, GdkDraw
1713      cairo_paint(cr);      cairo_paint(cr);
1714  #endif  #endif
1715    
1716    #ifdef OSD_NAV
1717        if(priv->nav.surface) {
1718            x =  OSD_X;
1719            if(x < 0) x += osd->widget->allocation.width - OSD_NAV_W;
1720            y = (osd->widget->allocation.height - OSD_NAV_H)/2;
1721    
1722            cairo_set_source_surface(cr, priv->nav.surface, x, y);
1723            cairo_paint(cr);
1724        }
1725    #endif
1726    
1727  #ifdef OSD_COORDINATES  #ifdef OSD_COORDINATES
1728      x = -OSD_X;      x = -OSD_X;
1729      y = -OSD_Y;      y = -OSD_Y;
# Line 1688  osd_free(osm_gps_map_osd_t *osd) Line 1815  osd_free(osm_gps_map_osd_t *osd)
1815           cairo_surface_destroy(priv->crosshair.surface);           cairo_surface_destroy(priv->crosshair.surface);
1816  #endif  #endif
1817    
1818    #ifdef OSD_NAV
1819        if (priv->nav.surface)
1820             cairo_surface_destroy(priv->nav.surface);
1821    #endif
1822    
1823  #ifdef OSD_COORDINATES  #ifdef OSD_COORDINATES
1824      if (priv->coordinates.surface)      if (priv->coordinates.surface)
1825           cairo_surface_destroy(priv->coordinates.surface);           cairo_surface_destroy(priv->coordinates.surface);
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