X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgrace-music.cc;h=f92d4ebb8c960548f99fb018cc2743f5c62d3109;hb=9f54b1d5cd8d05a70e6043e6e26c12aaad75c945;hp=50c0f155f64f45c8b4d459d0974535778cd3995e;hpb=ad7defd5f5a3d0151a711555c2d680c56ef559c7;p=lilypond.git

diff --git a/lily/grace-music.cc b/lily/grace-music.cc
index 50c0f155f6..f92d4ebb8c 100644
--- a/lily/grace-music.cc
+++ b/lily/grace-music.cc
@@ -1,27 +1,26 @@
-/*   
-  grace-music.cc --  implement Grace_music
-  
+/*
+  grace-music.cc -- implement Grace_music
+
   source file of the GNU LilyPond music typesetter
-  
-  (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
 
-#include "grace-music.hh"
+  (c) 1999--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
 
-void
-Grace_music::compress (Moment)
-{
-  
-}
+#include "music.hh"
+#include "music-wrapper.hh"
 
-Moment
-Grace_music::length_mom () const
+class Grace_music
 {
-  return 0;
-}
+public:
+  DECLARE_SCHEME_CALLBACK (start_callback, (SCM));
+};
 
-Grace_music::Grace_music (Music *p)
-  : Music_wrapper (p)
+MAKE_SCHEME_CALLBACK (Grace_music, start_callback, 1);
+SCM
+Grace_music::start_callback (SCM m)
 {
+  Moment *l = unsmob_moment (Music_wrapper::length_callback (m));
+  Moment gl;
+  gl.grace_part_ = -(l->main_part_ + l->grace_part_);
+  return gl.smobbed_copy ();
 }