X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fpitched-trill-engraver.cc;h=18482faabd4569f5b0b1ce40e13b950e00287153;hb=5be4c57cff4ebd477b2b3d0899d6725794da77f0;hp=3104b48ce02b1ba3ad1b0224eb5de04edf2c3d79;hpb=ac6c83f047635535d0481a15654c13e776334dc6;p=lilypond.git

diff --git a/lily/pitched-trill-engraver.cc b/lily/pitched-trill-engraver.cc
index 3104b48ce0..18482faabd 100644
--- a/lily/pitched-trill-engraver.cc
+++ b/lily/pitched-trill-engraver.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2005--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 2005--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "engraver.hh"
@@ -80,9 +80,22 @@ Pitched_trill_engraver::make_trill (Stream_event *ev)
   SCM key = scm_cons (scm_from_int (p->get_octave ()),
 		      scm_from_int (p->get_notename ()));
 
+  int bn = measure_number (context());
+
   SCM handle = scm_assoc (key, keysig);
+  if (handle != SCM_BOOL_F)
+    {
+      bool same_bar = (bn == robust_scm2int (scm_caddr (handle), 0));
+      bool same_alt
+	= (p->get_alteration () == robust_scm2rational (scm_cadr (handle), 0));
+
+      if (!same_bar || (same_bar && !same_alt))
+	handle = SCM_BOOL_F;
+    }
+
   bool print_acc
-    = (handle == SCM_BOOL_F) || p->get_alteration () == Rational (0);
+    = (handle == SCM_BOOL_F) || p->get_alteration () == Rational (0)
+    || (ev->get_property ("force-accidental") == SCM_BOOL_T);
 
   if (trill_head_)
     {