X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ffootnote-engraver.cc;h=ea5c4781b55532da20566082a7e6b2dc5b386349;hb=97a0169312a260933246ab224e4f8b0969871dd5;hp=7539bf95039e3ff33be4d8cd93086ab2bad28a50;hpb=9cc7f76cb53f6f22844619efff966d13d4790327;p=lilypond.git

diff --git a/lily/footnote-engraver.cc b/lily/footnote-engraver.cc
index 7539bf9503..ea5c4781b5 100644
--- a/lily/footnote-engraver.cc
+++ b/lily/footnote-engraver.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 2011 Mike Solomon <mike@apollinemike.com>
+  Copyright (C) 2011--2015 Mike Solomon <mike@mikesolomon.org>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -19,10 +19,13 @@
 
 #include "engraver.hh"
 
+#include "music.hh"
 #include "stream-event.hh"
+#include "international.hh"
 #include "item.hh"
 #include "pointer-group-interface.hh"
 #include "spanner.hh"
+#include "system.hh"
 
 #include "translator.icc"
 
@@ -30,51 +33,44 @@ class Footnote_engraver : public Engraver
 {
   TRANSLATOR_DECLARATIONS (Footnote_engraver);
 
-  DECLARE_TRANSLATOR_LISTENER (footnote);
-  DECLARE_ACKNOWLEDGER (grob);
-  DECLARE_END_ACKNOWLEDGER (grob);
-  vector<Stream_event *> events_;
+  void acknowledge_grob (Grob_info);
+  void acknowledge_end_grob (Grob_info);
+
   vector<Drul_array<Spanner *> > annotated_spanners_;
 
-  void stop_translation_timestep ();
+  void finalize ();
 
-  void footnotify (Grob *, Stream_event *);
+  void footnotify (Grob *, SCM);
 };
 
-IMPLEMENT_TRANSLATOR_LISTENER (Footnote_engraver, footnote);
 void
-Footnote_engraver::listen_footnote (Stream_event *ev)
+Footnote_engraver::finalize ()
 {
-  events_.push_back (ev);
+  annotated_spanners_.clear ();
 }
 
-void
-Footnote_engraver::stop_translation_timestep ()
-{
-  events_.clear ();
-}
-
-Footnote_engraver::Footnote_engraver ()
+Footnote_engraver::Footnote_engraver (Context *c)
+  : Engraver (c)
 {
 }
 
 void
-Footnote_engraver::footnotify (Grob *g, Stream_event *event)
+Footnote_engraver::footnotify (Grob *g, SCM cause)
 {
   Spanner *s = dynamic_cast<Spanner *>(g);
 
   if (s)
     {
-      Spanner *b = make_spanner ("FootnoteSpanner", event->self_scm ());
+      Spanner *b = make_spanner ("FootnoteSpanner", cause);
       b->set_parent (s, Y_AXIS);
       b->set_parent (s, X_AXIS);
-      Grob *bound = unsmob_grob (get_property ("currentMusicalColumn"));
+      Grob *bound = unsmob<Grob> (get_property ("currentMusicalColumn"));
       b->set_bound (LEFT, bound);
-      annotated_spanners_.push_back (Drul_array<Spanner *> (s,b));
+      annotated_spanners_.push_back (Drul_array<Spanner *> (s, b));
     }
   else
     {
-      Grob *b = make_item ("FootnoteItem", event->self_scm ());
+      Grob *b = make_item ("FootnoteItem", cause);
       b->set_parent (g, Y_AXIS);
       b->set_parent (g, X_AXIS);
     }
@@ -83,20 +79,22 @@ Footnote_engraver::footnotify (Grob *g, Stream_event *event)
 void
 Footnote_engraver::acknowledge_grob (Grob_info info)
 {
-  Stream_event *cause = info.event_cause ();
+  Music *mus = unsmob<Music> (info.grob ()->get_property ("footnote-music"));
 
-  SCM arts = cause ? cause->get_property ("articulations") : SCM_EOL;
-  for (SCM s = arts; scm_is_pair (s); s = scm_cdr (s))
+  if (mus)
     {
-      Stream_event *e = unsmob_stream_event (scm_car (s));
-      if (e->in_event_class ("footnote-event"))
-	  footnotify (info.grob (), e);
-    }
+      if (!mus->is_mus_type ("footnote-event"))
+        {
+          mus->origin ()->programming_error (_ ("Must be footnote-event."));
+          return;
+        }
 
-  for (vsize i = 0; i < events_.size (); i++)
-    {
-      if (info.grob ()->name () == ly_symbol2string (events_[i]->get_property ("symbol")))
-	footnotify (info.grob (), events_[i]);
+      footnotify (info.grob (), mus->to_event ()->unprotect ());
+
+      // This grob has exhausted its footnote
+      info.grob ()->set_property ("footnote-music", SCM_EOL);
+
+      return;
     }
 }
 
@@ -110,27 +108,32 @@ Footnote_engraver::acknowledge_end_grob (Grob_info info)
       {
         if (annotated_spanners_[i][LEFT] == s)
           {
-            Grob *bound = unsmob_grob (get_property ("currentMusicalColumn"));
+            Grob *bound = unsmob<Grob> (get_property ("currentMusicalColumn"));
             annotated_spanners_[i][RIGHT]->set_bound (RIGHT, bound);
             break;
           }
       }
 }
 
-ADD_ACKNOWLEDGER (Footnote_engraver, grob);
-ADD_END_ACKNOWLEDGER (Footnote_engraver, grob);
+
+void
+Footnote_engraver::boot ()
+{
+  ADD_ACKNOWLEDGER (Footnote_engraver, grob);
+  ADD_END_ACKNOWLEDGER (Footnote_engraver, grob);
+}
 
 ADD_TRANSLATOR (Footnote_engraver,
-	       /* doc */
-	       "Create footnote texts.",
+                /* doc */
+                "Create footnote texts.",
 
-	       /* create */
-	       "FootnoteItem "
-	       "FootnoteSpanner ",
+                /* create */
+                "FootnoteItem "
+                "FootnoteSpanner ",
 
-	       /*read*/
-	       "currentMusicalColumn ",
+                /*read*/
+                "currentMusicalColumn ",
 
-	       /*write*/
-	       ""
-	       );
+                /*write*/
+                ""
+               );