X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmetronome-engraver.cc;h=6cd2bfde25e73ff844e875ba6fc6b12519a2bc08;hb=90e4d7057f3857da049dfda3d130017d4719bd6b;hp=279f8f721cef5e99618f8792f0933de2e46c1638;hpb=e0af94bb8939bc6f4998db6294010baa77139092;p=lilypond.git

diff --git a/lily/metronome-engraver.cc b/lily/metronome-engraver.cc
index 279f8f721c..6cd2bfde25 100644
--- a/lily/metronome-engraver.cc
+++ b/lily/metronome-engraver.cc
@@ -46,14 +46,15 @@ protected:
   void stop_translation_timestep ();
   void process_music ();
 
-  DECLARE_ACKNOWLEDGER (break_aligned);
-  DECLARE_ACKNOWLEDGER (break_alignment);
-  DECLARE_ACKNOWLEDGER (grob);
+  void acknowledge_break_aligned (Grob_info);
+  void acknowledge_break_alignment (Grob_info);
+  void acknowledge_grob (Grob_info);
 
-  DECLARE_TRANSLATOR_LISTENER (tempo_change);
+  void listen_tempo_change (Stream_event *);
 };
 
-Metronome_mark_engraver::Metronome_mark_engraver ()
+Metronome_mark_engraver::Metronome_mark_engraver (Context *c)
+  : Engraver (c)
 {
   text_ = 0;
   support_ = 0;
@@ -61,7 +62,6 @@ Metronome_mark_engraver::Metronome_mark_engraver ()
   tempo_ev_ = 0;
 }
 
-IMPLEMENT_TRANSLATOR_LISTENER (Metronome_mark_engraver, tempo_change);
 void
 Metronome_mark_engraver::listen_tempo_change (Stream_event *ev)
 {
@@ -138,9 +138,9 @@ Metronome_mark_engraver::stop_translation_timestep ()
             first notational element of the measure if no time
             signature is present in that measure).
           */
-          if (Grob *mc = Grob::unsmob (get_property ("currentMusicalColumn")))
+          if (Grob *mc = unsmob<Grob> (get_property ("currentMusicalColumn")))
             text_->set_parent (mc, X_AXIS);
-          else if (Grob *cc = Grob::unsmob (get_property ("currentCommandColumn")))
+          else if (Grob *cc = unsmob<Grob> (get_property ("currentCommandColumn")))
             text_->set_parent (cc, X_AXIS);
         }
       text_->set_object ("side-support-elements",
@@ -168,9 +168,15 @@ Metronome_mark_engraver::process_music ()
     }
 }
 
-ADD_ACKNOWLEDGER (Metronome_mark_engraver, break_aligned);
-ADD_ACKNOWLEDGER (Metronome_mark_engraver, break_alignment);
-ADD_ACKNOWLEDGER (Metronome_mark_engraver, grob);
+
+void
+Metronome_mark_engraver::boot ()
+{
+  ADD_LISTENER (Metronome_mark_engraver, tempo_change);
+  ADD_ACKNOWLEDGER (Metronome_mark_engraver, break_aligned);
+  ADD_ACKNOWLEDGER (Metronome_mark_engraver, break_alignment);
+  ADD_ACKNOWLEDGER (Metronome_mark_engraver, grob);
+}
 
 ADD_TRANSLATOR (Metronome_mark_engraver,
                 /* doc */