Fix #691: wrong GPS

https://github.com/BestImageViewer/geeqie/issues/691

European locales use a comma as a decimal separator.
The XMP spec. specifies a dot as a decimal separator.

diff --git a/src/metadata.c b/src/metadata.c
index e2e3611..98232ff 100644 (file)
--- a/src/metadata.c
+++ b/src/metadata.c
@@ -19,6 +19,8 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#include <locale.h>
+
 #include "main.h"
 #include "metadata.h"
 
@@ -859,6 +861,7 @@ gboolean metadata_write_GPS_coord(FileData *fd, const gchar *key, gdouble value)
        char *coordinate;
        char *ref;
        gboolean ok = TRUE;
+       char *old_locale, *saved_locale;
 
        param = value;
        if (param < 0)
@@ -883,8 +886,20 @@ gboolean metadata_write_GPS_coord(FileData *fd, const gchar *key, gdouble value)
 
        if (ok)
                {
+               /* Avoid locale problems with commas and decimal points in numbers */
+               old_locale = setlocale(LC_ALL, NULL);
+               saved_locale = strdup(old_locale);
+               if (saved_locale == NULL)
+                       {
+                       return FALSE;
+                       }
+               setlocale(LC_ALL, "C");
+
                coordinate = g_strdup_printf("%i,%lf,%s", deg, min, ref);
                metadata_write_string(fd, key, coordinate );
+
+               setlocale(LC_ALL, saved_locale);
+               free(saved_locale);
                g_free(coordinate);
                }