[gegl] gegl: Comment GeglOperationContext struct

[Martin Nordholts <martinn src gnome org>]

commit e0acb4e66a47a38944f2c3f3688f19f51053855e
Author: Martin Nordholts <martinn src gnome org>
Date:   Fri May 14 16:35:34 2010 +0200

    gegl: Comment GeglOperationContext struct

 gegl/operation/gegl-operation-context.h |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/gegl/operation/gegl-operation-context.h b/gegl/operation/gegl-operation-context.h
index b52cdd9..6e781b5 100644
--- a/gegl/operation/gegl-operation-context.h
+++ b/gegl/operation/gegl-operation-context.h
@@ -24,6 +24,11 @@
 
 G_BEGIN_DECLS
 
+/**
+ * When a node in a GEGL graph does processing, it needs context such
+ * as inputs. This structure holds this stuff and is passed to the
+ * node during processing.
+ */
 struct _GeglOperationContext
 {
   GeglOperation *operation;