Run `make grand-replace'.

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

diff --git a/lily/grob-pq-engraver.cc b/lily/grob-pq-engraver.cc
index 542880c184d6808d185e9ae82a692440add911a0..6e6cead34eece87b2817658c6ab04e7a456e3092 100644 (file)
--- a/lily/grob-pq-engraver.cc
+++ b/lily/grob-pq-engraver.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2001--2005  Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 2001--2008  Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "context.hh"
@@ -11,15 +11,30 @@
 #include "grob.hh"
 #include "warn.hh"
 
+struct Grob_pq_entry
+{
+  Grob *grob_;
+  Moment end_;
+};
+
+bool
+operator< (Grob_pq_entry const &a, Grob_pq_entry const &b)
+{
+  return a.end_ < b.end_;
+}
+
 class Grob_pq_engraver : public Engraver
 {
 public:
   TRANSLATOR_DECLARATIONS (Grob_pq_engraver);
 protected:
   virtual void initialize ();
-  virtual void acknowledge_grob (Grob_info);
-  virtual void start_translation_timestep ();
-  virtual void stop_translation_timestep ();
+  DECLARE_ACKNOWLEDGER (grob);
+  void start_translation_timestep ();
+  void stop_translation_timestep ();
+  void process_acknowledged ();
+  
+  vector<Grob_pq_entry> started_now_;
 };
 
 Grob_pq_engraver::Grob_pq_engraver ()
@@ -32,9 +47,10 @@ Grob_pq_engraver::initialize ()
   context ()->set_property ("busyGrobs", SCM_EOL);
 }
 
-LY_DEFINE (ly_grob_pq_less_p, "ly:grob-pq-less?",
+LY_DEFINE (ly_grob_pq_less_p, "ly:grob-pq<?",
           2, 0, 0, (SCM a, SCM b),
-          "Compare 2 grob priority queue entries. Internal")
+          "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)
@@ -46,32 +62,46 @@ LY_DEFINE (ly_grob_pq_less_p, "ly:grob-pq-less?",
 void
 Grob_pq_engraver::acknowledge_grob (Grob_info gi)
 {
-  Music *m = gi.music_cause ();
+  Stream_event *ev = gi.event_cause ();
 
-  if (m
+  if (ev
       && !gi.grob ()->internal_has_interface (ly_symbol2scm ("multi-measure-interface")))
     {
       Moment n = now_mom ();
-      Moment l = m->get_length ();
+      Moment l = get_event_length (ev, n);
 
       if (!l.to_bool ())
        return;
 
-      if (n.grace_part_)
-       {
-         l.grace_part_ = l.main_part_;
-         l.main_part_ = 0;
-       }
-
       Moment end = n + l;
-      SCM lst = scm_acons (end.smobbed_copy (),
-                          gi.grob ()->self_scm (),
-                          SCM_EOL);
 
-      SCM busy = get_property ("busyGrobs");
-      busy = scm_merge_x (lst, busy, ly_grob_pq_less_p_proc);
-      context ()->set_property ("busyGrobs", busy);
+      Grob_pq_entry e;
+      e.grob_ = gi.grob ();
+      e.end_ = end;
+
+      started_now_.push_back (e);
+    }
+}
+
+void
+Grob_pq_engraver::process_acknowledged ()
+{
+  vector_sort (started_now_, less<Grob_pq_entry> ());
+  SCM lst = SCM_EOL;
+  SCM *tail = &lst;
+  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);
+      tail = SCM_CDRLOC (*tail);
     }
+
+  SCM busy = get_property ("busyGrobs");
+  busy = scm_merge_x (lst, busy, ly_grob_pq_less_p_proc);
+  context ()->set_property ("busyGrobs", busy);
+
+  started_now_.clear ();
 }
 
 void
@@ -81,12 +111,8 @@ Grob_pq_engraver::stop_translation_timestep ()
   SCM start_busy = get_property ("busyGrobs");
   SCM busy = start_busy;
   while (scm_is_pair (busy) && *unsmob_moment (scm_caar (busy)) == now)
-    {
-      busy = scm_cdr (busy);
-    }
+    busy = scm_cdr (busy);
 
-  if (start_busy != busy)
-    context ()->set_property ("busyGrobs", busy);
 }
 
 void
@@ -109,15 +135,19 @@ Grob_pq_engraver::start_translation_timestep ()
     context ()->set_property ("busyGrobs", busy);
 }
 
+#include "translator.icc"
+ADD_ACKNOWLEDGER (Grob_pq_engraver, grob);
 ADD_TRANSLATOR (Grob_pq_engraver,
+               /* doc */
+               "Administrate when certain grobs (e.g., note heads) stop"
+               " playing.",
+
+               /* create */
+               "",
 
-               /* descr */ "Administrate when certain grobs (eg. note heads) stop playing; this \
-engraver is a sort-of a failure, since it doesn't handle all sorts of \
-borderline cases very well. \
-",
+               /* read */
+               "busyGrobs ",
 
-               /* creats*/ "",\
-               /* accepts */ "",\
-               /* acks  */ "grob-interface",\
-               /* reads */ "busyGrobs",\
-               /* write */ "busyGrobs");
+               /* write */
+               "busyGrobs "
+               );