* lily/include/translator.icc (ADD_ACKNOWLEDGER): new macro.

[lilypond.git] / lily / chord-tremolo-engraver.cc

diff --git a/lily/chord-tremolo-engraver.cc b/lily/chord-tremolo-engraver.cc
index 50d4e382cd6f0ab3b4be1cd451847bf57e4b66aa..d4221afd207d764ff189a2485b13d9cdb9f0143b 100644 (file)
--- a/lily/chord-tremolo-engraver.cc
+++ b/lily/chord-tremolo-engraver.cc
@@ -13,13 +13,14 @@
 #include "engraver-group-engraver.hh"
 #include "warn.hh"
 #include "misc.hh"
-#include "note-head.hh"
 #include "spanner.hh"
 #include "item.hh"
 #include "chord-tremolo-iterator.hh"
 #include "stem-tremolo.hh"
 #include "math.h" // ceil
 
+#include "translator.icc"
+
 /**
 
 This acknowledges repeated music with "tremolo" style.  It typesets
@@ -57,10 +58,10 @@ protected:
 protected:
   virtual void finalize ();
   virtual bool try_music (Music *);
-  virtual void acknowledge_grob (Grob_info);
-  virtual void stop_translation_timestep ();
-  virtual void start_translation_timestep ();
-  virtual void process_music ();
+  PRECOMPUTED_VIRTUAL void stop_translation_timestep ();
+  PRECOMPUTED_VIRTUAL void start_translation_timestep ();
+  PRECOMPUTED_VIRTUAL void process_music ();
+  DECLARE_ACKNOWLEDGER(stem);
 };
 
 Chord_tremolo_engraver::Chord_tremolo_engraver ()
@@ -140,11 +141,11 @@ Chord_tremolo_engraver::typeset_beam ()
 }
 
 void
-Chord_tremolo_engraver::acknowledge_grob (Grob_info info)
+Chord_tremolo_engraver::acknowledge_stem (Grob_info info)
 {
-  if (beam_ && Stem::has_interface (info.grob_))
+  if (beam_)
     {
-      Grob *s = info.grob_;
+      Grob *s = info.grob ();
 
       if (start_mom_ == now_mom ())
        Stem::set_beaming (s, flags_, RIGHT);
@@ -170,14 +171,15 @@ Chord_tremolo_engraver::acknowledge_grob (Grob_info info)
        }
     }
   else if (repeat_
-          && flags_ && !body_is_sequential_ && Stem::has_interface (info.grob_))
+          && flags_
+          && !body_is_sequential_)
     {
       stem_tremolo_ = make_item ("StemTremolo", repeat_->self_scm ());
       stem_tremolo_->set_property ("flag-count",
                                   scm_int2num (flags_));
-      stem_tremolo_->set_property ("stem",
-                                  info.grob_->self_scm ());
-      stem_tremolo_->set_parent (info.grob_, X_AXIS);
+      stem_tremolo_->set_object ("stem",
+                                  info.grob ()->self_scm ());
+      stem_tremolo_->set_parent (info.grob (), X_AXIS);
     }
 }
 
@@ -206,10 +208,12 @@ Chord_tremolo_engraver::stop_translation_timestep ()
   typeset_beam ();
 }
 
+
+ADD_ACKNOWLEDGER(Chord_tremolo_engraver,stem);
 ADD_TRANSLATOR (Chord_tremolo_engraver,
                /* descr */ "Generates beams for  tremolo repeats.",
                /* creats*/ "Beam",
                /* accepts */ "repeated-music",
-               /* acks  */ "stem-interface note-head-interface",
+               /* acks  */ "",
                /* reads */ "",
                /* write */ "");