X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgrob-pq-engraver.cc;h=a9fa75eda51d9708252519adc7f7e34b89ad9927;hb=a6a51abfd0195a3cf7d6ea095cf69808852f21ce;hp=d3cd356a0444317df1c329205dcb0261aa448da0;hpb=5af7cd44435fd26fade6e700a3912630e1553a87;p=lilypond.git

diff --git a/lily/grob-pq-engraver.cc b/lily/grob-pq-engraver.cc
index d3cd356a04..a9fa75eda5 100644
--- a/lily/grob-pq-engraver.cc
+++ b/lily/grob-pq-engraver.cc
@@ -24,8 +24,6 @@
 
 #include "translator.icc"
 
-using std::vector;
-
 struct Grob_pq_entry
 {
   Grob *grob_;
@@ -44,7 +42,7 @@ public:
   TRANSLATOR_DECLARATIONS (Grob_pq_engraver);
 protected:
   virtual void initialize ();
-  DECLARE_ACKNOWLEDGER (grob);
+  void acknowledge_grob (Grob_info);
   void start_translation_timestep ();
   void stop_translation_timestep ();
   void process_acknowledged ();
@@ -52,7 +50,8 @@ protected:
   vector<Grob_pq_entry> started_now_;
 };
 
-Grob_pq_engraver::Grob_pq_engraver ()
+Grob_pq_engraver::Grob_pq_engraver (Context *c)
+  : Engraver (c)
 {
 }
 
@@ -146,11 +145,16 @@ Grob_pq_engraver::start_translation_timestep ()
       busy = scm_cdr (busy);
     }
 
-  if (start_busy != busy)
+  if (!scm_is_eq (start_busy, busy))
     context ()->set_property ("busyGrobs", busy);
 }
 
-ADD_ACKNOWLEDGER (Grob_pq_engraver, grob);
+void
+Grob_pq_engraver::boot ()
+{
+  ADD_ACKNOWLEDGER (Grob_pq_engraver, grob);
+}
+
 ADD_TRANSLATOR (Grob_pq_engraver,
                 /* doc */
                 "Administrate when certain grobs (e.g., note heads) stop"