X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fchord-tremolo-engraver.cc;h=9e48a1a4908d5a21bf0c0e59a9242483979f4dd3;hb=a6a51abfd0195a3cf7d6ea095cf69808852f21ce;hp=3855c350d73e8e15b7e0faaa37d008ed902b0d6a;hpb=0b25807868f2e1f3372a8fb5e19d9036dec53ecc;p=lilypond.git

diff --git a/lily/chord-tremolo-engraver.cc b/lily/chord-tremolo-engraver.cc
index 3855c350d7..9e48a1a490 100644
--- a/lily/chord-tremolo-engraver.cc
+++ b/lily/chord-tremolo-engraver.cc
@@ -62,18 +62,18 @@ protected:
 protected:
   virtual void finalize ();
   void process_music ();
-  DECLARE_TRANSLATOR_LISTENER (tremolo_span);
-  DECLARE_ACKNOWLEDGER (stem);
+  void listen_tremolo_span (Stream_event *);
+  void acknowledge_stem (Grob_info);
 };
 
-Chord_tremolo_engraver::Chord_tremolo_engraver ()
+Chord_tremolo_engraver::Chord_tremolo_engraver (Context *c)
+  : Engraver (c)
 {
   beam_ = 0;
   repeat_ = 0;
   previous_stem_ = 0;
 }
 
-IMPLEMENT_TRANSLATOR_LISTENER (Chord_tremolo_engraver, tremolo_span);
 void
 Chord_tremolo_engraver::listen_tremolo_span (Stream_event *ev)
 {
@@ -158,7 +158,13 @@ Chord_tremolo_engraver::acknowledge_stem (Grob_info info)
     }
 }
 
-ADD_ACKNOWLEDGER (Chord_tremolo_engraver, stem);
+void
+Chord_tremolo_engraver::boot ()
+{
+  ADD_LISTENER (Chord_tremolo_engraver, tremolo_span);
+  ADD_ACKNOWLEDGER (Chord_tremolo_engraver, stem);
+}
+
 ADD_TRANSLATOR (Chord_tremolo_engraver,
                 /* doc */
                 "Generate beams for tremolo repeats.",