[gegl] ui: readded rotate code that fell through cracks

[Øyvind Kolås <ok src gnome org>]

commit dfbbec2ca2b49bc1ca026ff458dad8e5289eaee2
Author: Øyvind Kolås <pippin gimp org>
Date:   Tue Oct 13 15:00:38 2015 +0200

    ui: readded rotate code that fell through cracks

 bin/mrg-ui.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/bin/mrg-ui.c b/bin/mrg-ui.c
index 286ed54..ad23a7f 100644
--- a/bin/mrg-ui.c
+++ b/bin/mrg-ui.c
@@ -114,6 +114,7 @@ static char *suffix = "-gegl";
 
 void   gegl_meta_set (const char *path, const char *meta_data);
 char * gegl_meta_get (const char *path);
+GExiv2Orientation path_get_orientation (const char *path);
 
 static char *suffix_path (const char *path);
 static char *unsuffix_path (const char *path);
@@ -1805,4 +1806,19 @@ gegl_meta_get (const char *path)
   return ret;
 }
 
+GExiv2Orientation path_get_orientation (const char *path)
+{
+  GExiv2Orientation ret = 0;
+  GError *error = NULL;
+  GExiv2Metadata *e2m = gexiv2_metadata_new ();
+  gexiv2_metadata_open_path (e2m, path, &error);
+  if (!error)
+    ret = gexiv2_metadata_get_orientation (e2m);
+  /*else
+    g_warning ("%s", error->message);*/
+  gexiv2_metadata_free (e2m);
+  return ret;
+}
+
+
 #endif