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[geeqie.git] / src / metadata.c

diff --git a/src/metadata.c b/src/metadata.c
index 8c8e9ab..26d8350 100644 (file)
--- a/src/metadata.c
+++ b/src/metadata.c
@@ -833,6 +833,46 @@ gboolean metadata_append_string(FileData *fd, const gchar *key, const char *valu
                }
 }
 
+gboolean metadata_write_GPS_coord(FileData *fd, const gchar *key, gdouble value)
+{
+       gint deg;
+       gdouble min;
+       gdouble param;
+       char *coordinate;
+       char *ref;
+       gboolean ok = TRUE;
+
+       param = value;
+       if (param < 0)
+               param = -param;
+       deg = param;
+       min = (param * 60) - (deg * 60);
+       if (g_strcmp0(key, "Xmp.exif.GPSLongitude") == 0)
+               if (value < 0)
+                       ref = "W";
+               else
+                       ref = "E";
+       else if (g_strcmp0(key, "Xmp.exif.GPSLatitude") == 0)
+               if (value < 0)
+                       ref = "S";
+               else
+                       ref = "N";
+       else
+               {
+               log_printf("unknown GPS parameter key '%s'\n", key);
+               ok = FALSE;
+               }
+
+       if (ok)
+               {
+               coordinate = g_strdup_printf("%i,%lf,%s", deg, min, ref);
+               metadata_write_string(fd, key, coordinate );
+               g_free(coordinate);
+               }
+
+       return ok;
+}
+
 gboolean metadata_append_list(FileData *fd, const gchar *key, const GList *values)
 {
        GList *list = metadata_read_list(fd, key, METADATA_PLAIN);