[tracker] Writeback N/E/S/W notation for GPS coordinates

[Philip Van Hoof <pvanhoof src gnome org>]

commit 789cc72e0333c280583089de6a1e0099ebbf9060
Author: Philip Van Hoof <philip codeminded be>
Date:   Tue Nov 15 13:41:27 2011 +0100

    Writeback N/E/S/W notation for GPS coordinates
    
    Fixes NB#291088.

 src/tracker-writeback/tracker-writeback-xmp.c |   30 +++++++++++++++++++++++-
 1 files changed, 28 insertions(+), 2 deletions(-)
---
diff --git a/src/tracker-writeback/tracker-writeback-xmp.c b/src/tracker-writeback/tracker-writeback-xmp.c
index c3e3ed8..1b91b2e 100644
--- a/src/tracker-writeback/tracker-writeback-xmp.c
+++ b/src/tracker-writeback/tracker-writeback-xmp.c
@@ -501,12 +501,38 @@ writeback_xmp_update_file_metadata (TrackerWritebackFile     *wbf,
 
 				xmp_delete_property (xmp, NS_EXIF, "GPSLongitude");
 				if (longitude != NULL) {
-					xmp_set_property (xmp, NS_EXIF, "GPSLongitude", longitude, 0);
+					double coord = atof (longitude);
+					double degrees, minutes;
+					gchar *val;
+
+					minutes = modf (coord, &degrees);
+
+					val = g_strdup_printf ("%3d,%f%c",
+					                       (int) fabs(degrees),
+					                       minutes,
+					                       coord >= 0 ? 'E' : 'W');
+
+					xmp_set_property (xmp, NS_EXIF, "GPSLongitude", val, 0);
+
+					g_free (val);
 				}
 
 				xmp_delete_property (xmp, NS_EXIF, "GPSLatitude");
 				if (latitude != NULL) {
-					xmp_set_property (xmp, NS_EXIF, "GPSLatitude", latitude, 0);
+					double coord = atof (latitude);
+					double degrees, minutes;
+					gchar *val;
+
+					minutes = modf (coord, &degrees);
+
+					val = g_strdup_printf ("%3d,%f%c",
+					                       (int) fabs(degrees),
+					                       minutes,
+					                       coord >= 0 ? 'N' : 'S');
+
+					xmp_set_property (xmp, NS_EXIF, "GPSLatitude", val, 0);
+
+					g_free (val);
 				}
 			}
 		}