X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fstem-engraver.cc;h=e21d796765ccd1cc1de4daf188b18be068e82d48;hb=4ca7755e47e3c2a52b866575463321321b957160;hp=d9d278799d9a584369a70a9c0bd83b5bb8327fe0;hpb=81223c5f14d0e6069653c07db04972d0a1241621;p=lilypond.git

diff --git a/lily/stem-engraver.cc b/lily/stem-engraver.cc
index d9d278799d..e21d796765 100644
--- a/lily/stem-engraver.cc
+++ b/lily/stem-engraver.cc
@@ -1,9 +1,20 @@
 /*
-  stem-engraver.cc -- implement Stem_engraver
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 1997--2006 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
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "engraver.hh"
@@ -23,9 +34,6 @@
 
 #include "translator.icc"
 
-/**
-   Make stems upon receiving noteheads.
-*/
 class Stem_engraver : public Engraver
 {
   Grob *stem_;
@@ -61,14 +69,14 @@ Stem_engraver::make_stem (Grob_info gi)
   if (tremolo_ev_)
     {
       /* Stem tremolo is never applied to a note by default,
-	 is must me requested.  But there is a default for the
+	 it must be requested.  But there is a default for the
 	 tremolo value:
 
 	 c4:8 c c:
 
-	 the first and last (quarter) note bothe get one tremolo flag.  */
+	 the first and last (quarter) note both get one tremolo flag.  */
       int requested_type
-	= scm_to_int (tremolo_ev_->get_property ("tremolo-type"));
+	= robust_scm2int (tremolo_ev_->get_property ("tremolo-type"), 0);
       SCM f = get_property ("tremoloFlags");
       if (!requested_type)
 	{
@@ -126,12 +134,14 @@ Stem_engraver::acknowledge_rhythmic_head (Grob_info gi)
   if (!stem_)
     make_stem (gi);
 
-  if (Stem::duration_log (stem_) != d->duration_log ())
+  int ds = Stem::duration_log (stem_);
+
+  if (ds != d->duration_log ())
     {
-      // FIXME: 
-      gi.event_cause ()->origin ()->warning (_f ("adding note head to incompatible stem (type = %d)",
-						 1 << Stem::duration_log (stem_)));
-      gi.event_cause ()->origin ()->warning (_f ("maybe input should specify polyphonic voices"));
+      gi.event_cause ()->origin ()->warning (_f ("adding note head to incompatible stem (type = %d/%d)",
+						 ds < 0 ? 1 << -ds : 1,
+						 ds > 0 ? 1 << ds : 1));
+      gi.event_cause ()->origin ()->warning (_ ("maybe input should specify polyphonic voices"));
     }
 
   Stem::add_head (stem_, gi.grob ());
@@ -171,20 +181,19 @@ Stem_engraver::listen_tremolo (Stream_event *ev)
 ADD_ACKNOWLEDGER (Stem_engraver, rhythmic_head);
 
 ADD_TRANSLATOR (Stem_engraver,
-
-		/* doc */ "Create stems and single-stem tremolos.  It also works together with "
-		"the beam engraver for overriding beaming.",
+		/* doc */
+		"Create stems and single-stem tremolos.  It also works"
+		" together with the beam engraver for overriding beaming.",
 
 		/* create */
 		"Stem "
 		"StemTremolo ",
-		
-		/* accept */
-		"tremolo-event",
 
 		/* read */
 		"tremoloFlags "
 		"stemLeftBeamCount "
 		"stemRightBeamCount ",
 
-		/* write */ "");
+		/* write */
+		""
+		);