X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fcompletion-note-heads-engraver.cc;h=677ede56a6558b91dc76d06bd3462362314d144f;hb=47db9a3883d726ca53e2133a3b2298f78dd6a32e;hp=5775ef188a17e8bbd2cd3ab45c001115a1782d77;hpb=40aac0ae57ee113faa860ba221d83d9e6312173e;p=lilypond.git

diff --git a/lily/completion-note-heads-engraver.cc b/lily/completion-note-heads-engraver.cc
index 5775ef188a..677ede56a6 100644
--- a/lily/completion-note-heads-engraver.cc
+++ b/lily/completion-note-heads-engraver.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1997--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -109,15 +109,21 @@ Completion_heads_engraver::listen_note (Stream_event *ev)
 Moment
 Completion_heads_engraver::next_moment (Rational const &note_len)
 {
-  Moment *e = unsmob_moment (get_property ("measurePosition"));
-  Moment *l = unsmob_moment (get_property ("measureLength"));
+  Moment *e = Moment::unsmob (get_property ("measurePosition"));
+  Moment *l = Moment::unsmob (get_property ("measureLength"));
   if (!e || !l || !to_boolean (get_property ("timing")))
     {
       return Moment (0, 0);
     }
 
   Moment result = *l - *e;
-  Moment const *unit = unsmob_moment (get_property ("completionUnit"));
+  if (result < 0)
+    {
+      programming_error ("invalid measure position: "
+                         + e->to_string () + " of " + l->to_string ());
+      return 0;
+    }
+  Moment const *unit = Moment::unsmob (get_property ("completionUnit"));
 
   if (unit)
     {
@@ -156,7 +162,7 @@ Item *
 Completion_heads_engraver::make_note_head (Stream_event *ev)
 {
   Item *note = make_item ("NoteHead", ev->self_scm ());
-  Pitch *pit = unsmob_pitch (ev->get_property ("pitch"));
+  Pitch *pit = Pitch::unsmob (ev->get_property ("pitch"));
 
   int pos = pit->steps ();
   SCM c0 = get_property ("middleCPosition");
@@ -192,7 +198,7 @@ Completion_heads_engraver::process_music ()
     }
   else
     {
-      orig = unsmob_duration (note_events_[0]->get_property ("duration"));
+      orig = Duration::unsmob (note_events_[0]->get_property ("duration"));
       note_dur = *orig;
       SCM factor = get_property ("completionFactor");
       if (ly_is_procedure (factor))