X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fchord-tremolo-engraver.cc;h=82eba5cec150bf6d743f63cd44d1bbbb80dc72e2;hb=79d5be4a62e43ea14042cba8787a589fc9f3340b;hp=b0f17352baa49915e771c4b92d8d23f1fe34b60e;hpb=cc676c5aadd45985251b5d60fa23eed1ed98f6e6;p=lilypond.git

diff --git a/lily/chord-tremolo-engraver.cc b/lily/chord-tremolo-engraver.cc
index b0f17352ba..82eba5cec1 100644
--- a/lily/chord-tremolo-engraver.cc
+++ b/lily/chord-tremolo-engraver.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2000--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 2000--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
   		 Erik Sandberg <mandolaerik@gmail.com>
 */
 
@@ -73,15 +73,19 @@ Chord_tremolo_engraver::listen_tremolo_span (Stream_event *ev)
   Direction span_dir = to_dir (ev->get_property ("span-direction"));
   if (span_dir == START)
     {
-      repeat_ = ev;
-      int type = scm_to_int (ev->get_property ("tremolo-type"));
-      /* e.g. 1 for type 8, 2 for type 16 */
-      flags_ = intlog2 (type) - 2;
-      expected_beam_count_ = scm_to_int (ev->get_property ("expected-beam-count"));
-      beam_dir_ = RIGHT;
+      if (ASSIGN_EVENT_ONCE (repeat_, ev))
+	{
+	  int type = scm_to_int (ev->get_property ("tremolo-type"));
+	  /* e.g. 1 for type 8, 2 for type 16 */
+	  flags_ = intlog2 (type) - 2;
+	  expected_beam_count_ = scm_to_int (ev->get_property ("expected-beam-count"));
+	  beam_dir_ = RIGHT;
+	}
     }
   else if (span_dir == STOP)
     {
+      if (!repeat_)
+	ev->origin ()->warning (_ ("No tremolo to end"));
       repeat_ = 0;
       beam_ = 0;
       expected_beam_count_ = 0;
@@ -104,6 +108,7 @@ Chord_tremolo_engraver::finalize ()
   if (beam_)
     {
       repeat_->origin ()->warning (_ ("unterminated chord tremolo"));
+      announce_end_grob (beam_, SCM_EOL);
       beam_->suicide ();
     }
 }
@@ -121,15 +126,18 @@ Chord_tremolo_engraver::acknowledge_stem (Grob_info info)
 	beam_->set_property ("gap-count", scm_from_int (flags_ - expected_beam_count_));
 
       if (beam_dir_ == RIGHT)
-        beam_dir_ = LEFT;
-
-      if (info.ultimate_music_cause ()->is_mus_type ("rhythmic-event"))
+	{
+	  beam_dir_ = LEFT;
+	  announce_end_grob (beam_, s->self_scm ());
+	}
+      
+      if (info.ultimate_event_cause ()->in_event_class ("rhythmic-event"))
 	Beam::add_stem (beam_, s);
       else
 	{
 	  string s = _ ("stem must have Rhythmic structure");
-	  if (info.music_cause ())
-	    info.music_cause ()->origin ()->warning (s);
+	  if (info.event_cause ())
+	    info.event_cause ()->origin ()->warning (s);
 	  else
 	    ::warning (s);
 	}
@@ -138,8 +146,15 @@ Chord_tremolo_engraver::acknowledge_stem (Grob_info info)
 
 ADD_ACKNOWLEDGER (Chord_tremolo_engraver, stem);
 ADD_TRANSLATOR (Chord_tremolo_engraver,
-		/* doc */ "Generates beams for tremolo repeats.",
-		/* create */ "Beam",
-		/* accept */ "tremolo-span-event",
-		/* read */ "",
-		/* write */ "");
+		/* doc */
+		"Generate beams for tremolo repeats.",
+
+		/* create */
+		"Beam ",
+
+		/* read */
+		"",
+
+		/* write */
+		""
+		);