Web-ja: update introduction

[lilypond.git] / lily / grob-pq-engraver.cc

diff --git a/lily/grob-pq-engraver.cc b/lily/grob-pq-engraver.cc
index 00217ceaf9a9fe1409a8b45160234b1d0ca9515a..a9fa75eda51d9708252519adc7f7e34b89ad9927 100644 (file)
--- a/lily/grob-pq-engraver.cc
+++ b/lily/grob-pq-engraver.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 2001--2010  Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 2001--2015  Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -22,6 +22,8 @@
 #include "grob.hh"
 #include "warn.hh"
 
+#include "translator.icc"
+
 struct Grob_pq_entry
 {
   Grob *grob_;
@@ -29,7 +31,7 @@ struct Grob_pq_entry
 };
 
 bool
-operator< (Grob_pq_entry const &a, Grob_pq_entry const &b)
+operator < (Grob_pq_entry const &a, Grob_pq_entry const &b)
 {
   return a.end_ < b.end_;
 }
@@ -40,15 +42,16 @@ 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 ();
-  
+
   vector<Grob_pq_entry> started_now_;
 };
 
-Grob_pq_engraver::Grob_pq_engraver ()
+Grob_pq_engraver::Grob_pq_engraver (Context *c)
+  : Engraver (c)
 {
 }
 
@@ -59,12 +62,12 @@ Grob_pq_engraver::initialize ()
 }
 
 LY_DEFINE (ly_grob_pq_less_p, "ly:grob-pq<?",
-          2, 0, 0, (SCM a, SCM b),
-          "Compare two grob priority queue entries."
-          "  This is an internal function.")
+           2, 0, 0, (SCM a, SCM b),
+           "Compare two grob priority queue entries."
+           "  This is an internal function.")
 {
-  if (Moment::compare (*unsmob_moment (scm_car (a)),
-                      *unsmob_moment (scm_car (b))) < 0)
+  if (Moment::compare (*unsmob<Moment> (scm_car (a)),
+                       *unsmob<Moment> (scm_car (b))) < 0)
     return SCM_BOOL_T;
   else
     return SCM_BOOL_F;
@@ -82,7 +85,7 @@ Grob_pq_engraver::acknowledge_grob (Grob_info gi)
       Moment l = get_event_length (ev, n);
 
       if (!l.to_bool ())
-       return;
+        return;
 
       Moment end = n + l;
 
@@ -103,8 +106,8 @@ Grob_pq_engraver::process_acknowledged ()
   for (vsize i = 0; i < started_now_.size (); i++)
     {
       *tail = scm_acons (started_now_[i].end_.smobbed_copy (),
-                        started_now_[i].grob_->self_scm (),
-                        SCM_EOL);
+                         started_now_[i].grob_->self_scm (),
+                         SCM_EOL);
       tail = SCM_CDRLOC (*tail);
     }
 
@@ -121,7 +124,7 @@ Grob_pq_engraver::stop_translation_timestep ()
   Moment now = now_mom ();
   SCM start_busy = get_property ("busyGrobs");
   SCM busy = start_busy;
-  while (scm_is_pair (busy) && *unsmob_moment (scm_caar (busy)) == now)
+  while (scm_is_pair (busy) && *unsmob<Moment> (scm_caar (busy)) == now)
     busy = scm_cdr (busy);
 
 }
@@ -133,32 +136,36 @@ Grob_pq_engraver::start_translation_timestep ()
 
   SCM start_busy = get_property ("busyGrobs");
   SCM busy = start_busy;
-  while (scm_is_pair (busy) && *unsmob_moment (scm_caar (busy)) < now)
+  while (scm_is_pair (busy) && *unsmob<Moment> (scm_caar (busy)) < now)
     {
       /*
-       The grob-pq-engraver is not water tight, and stuff like
-       tupletSpannerDuration confuses it.
+        The grob-pq-engraver is not water tight, and stuff like
+        tupletSpannerDuration confuses it.
       */
       busy = scm_cdr (busy);
     }
 
-  if (start_busy != busy)
+  if (!scm_is_eq (start_busy, busy))
     context ()->set_property ("busyGrobs", busy);
 }
 
-#include "translator.icc"
-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"
-               " playing.",
+                /* doc */
+                "Administrate when certain grobs (e.g., note heads) stop"
+                " playing.",
 
-               /* create */
-               "",
+                /* create */
+                "",
 
-               /* read */
-               "busyGrobs ",
+                /* read */
+                "busyGrobs ",
 
-               /* write */
-               "busyGrobs "
-               );
+                /* write */
+                "busyGrobs "
+               );