Fix:gui_internal:Format coordinates properly on Android Lollipop

Signed-off-by: mvglasow <michael -at- vonglasow.com>

1 files changed, 26 insertions, 1 deletions

diff --git a/navit/gui/internal/gui_internal_command.c b/navit/gui/internal/gui_internal_command.c
index 2c9ac2f64..62d7a0f35 100644
--- a/navit/gui/internal/gui_internal_command.c
+++ b/navit/gui/internal/gui_internal_command.c
@@ -39,6 +39,15 @@
 
 extern char *version;
 
+/**
+ * @brief Converts a WGS84 coordinate pair to its string representation.
+ *
+ * This function takes a coordinate pair with latitude and longitude in degrees and converts them to a
+ * string of the form {@code 45°28'0" N 9°11'26" E}.
+ *
+ * @param gc A WGS84 coordinate pair
+ * @param sep The separator character to insert between latitude and longitude
+ */
 static char *
 coordinates_geo(const struct coord_geo *gc, char sep)
 {
@@ -46,6 +55,7 @@ coordinates_geo(const struct coord_geo *gc, char sep)
 	int lat_deg,lat_min,lat_sec;
 	int lng_deg,lng_min,lng_sec;
 	struct coord_geo g=*gc;
+	char *ret;
 
 	if (g.lat < 0) {
 		g.lat=-g.lat;
@@ -61,7 +71,22 @@ coordinates_geo(const struct coord_geo *gc, char sep)
 	lng_sec=fmod(g.lng*3600+0.5,60);
 	lng_min=fmod(g.lng*60-lng_sec/60.0+0.5,60);
 	lng_deg=g.lng-lng_min/60.0-lng_sec/3600.0+0.5;;
-	return g_strdup_printf("%d°%d'%d\" %c%c%d°%d'%d\" %c",lat_deg,lat_min,lat_sec,latc,sep,lng_deg,lng_min,lng_sec,lngc);
+
+	/* Don't use g_strdup_printf for the full string because it has issues with extended ANSI characters
+	 * (notably the degree sign, 0xb0) on Android Lollipop.
+	 */
+	ret = g_strjoin(NULL,
+			g_strdup_printf("%d", lat_deg), "°",
+			g_strdup_printf("%d", lat_min), "'",
+			g_strdup_printf("%d", lat_sec), "\" ",
+			g_strnfill(1, latc),
+			g_strnfill(1, sep),
+			g_strdup_printf("%d", lng_deg), "°",
+			g_strdup_printf("%d", lng_min), "'",
+			g_strdup_printf("%d", lng_sec), "\" ",
+			g_strnfill(1, lngc),
+			NULL);
+	return ret;
 }
 
 char *