Issue 4938 (2/3) Refactor handling of MIDI control changes

[lilypond.git] / lily / lyric-engraver.cc

diff --git a/lily/lyric-engraver.cc b/lily/lyric-engraver.cc
index bc576bf3ccc669f23fbea53df01ce072c069549b..08c9306693a303f83ed31dc1c51c62c013d08422 100644 (file)
--- a/lily/lyric-engraver.cc
+++ b/lily/lyric-engraver.cc
@@ -36,7 +36,7 @@ class Lyric_engraver : public Engraver
 protected:
   void stop_translation_timestep ();
   void process_music ();
-  DECLARE_TRANSLATOR_LISTENER (lyric);
+  void listen_lyric (Stream_event *);
 
 public:
   TRANSLATOR_DECLARATIONS (Lyric_engraver);
@@ -56,7 +56,6 @@ Lyric_engraver::Lyric_engraver ()
   event_ = 0;
 }
 
-IMPLEMENT_TRANSLATOR_LISTENER (Lyric_engraver, lyric);
 void
 Lyric_engraver::listen_lyric (Stream_event *ev)
 {
@@ -158,7 +157,7 @@ get_current_note_head (Context *voice)
       // here.  Not with this mechanism.
       if ((*end_mom == end_from_now)
           && dynamic_cast<Item *> (g)
-          && Note_head::has_interface (g))
+          && has_interface<Note_head> (g))
         {
           return g;
         }
@@ -194,6 +193,12 @@ Lyric_engraver::stop_translation_timestep ()
   event_ = 0;
 }
 
+void
+Lyric_engraver::boot ()
+{
+  ADD_LISTENER (Lyric_engraver, lyric);
+}
+
 ADD_TRANSLATOR (Lyric_engraver,
                 /* doc */
                 "Engrave text for lyrics.",