Fix PNG images.

[lilypond.git] / lily / context-scheme.cc

diff --git a/lily/context-scheme.cc b/lily/context-scheme.cc
index b62a83f2399a8fb36636a0c4976ffc26bb6ed20a..64f8dd8e15a0fdb3fbf9d2f8fd1821188395c231 100644 (file)
--- a/lily/context-scheme.cc
+++ b/lily/context-scheme.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1998--2011 Jan Nieuwenhuizen <janneke@gnu.org>
+  Copyright (C) 1998--2012 Jan Nieuwenhuizen <janneke@gnu.org>
   Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
@@ -211,3 +211,15 @@ LY_DEFINE (ly_context_events_below, "ly:context-events-below",
   Context *ctx = unsmob_context (context);
   return ctx->events_below ()->self_scm ();
 }
+
+LY_DEFINE (ly_make_event_class, "ly:make-event-class",
+           2, 0, 0, (SCM context, SCM type),
+           "Make an event class (a list of types) from the given @var{type}"
+           " within the global context containing @var{context}.")
+{
+  LY_ASSERT_SMOB (Context, context, 1);
+  LY_ASSERT_TYPE (ly_is_symbol, type, 2);
+
+  Context *ctx = unsmob_context (context);
+  return ctx->make_event_class (type);
+}