Web-ja: update introduction

[lilypond.git] / lily / rest-collision-engraver.cc

diff --git a/lily/rest-collision-engraver.cc b/lily/rest-collision-engraver.cc
index 9bb2770589e5645c679a9391fbd11483c7d28798..70984ae2ad1b9ddbe9516730fb443370c7b1f713 100644 (file)
--- a/lily/rest-collision-engraver.cc
+++ b/lily/rest-collision-engraver.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1997--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
@@ -32,6 +32,8 @@
 #include "stream-event.hh"
 #include "warn.hh"
 
+#include "translator.icc"
+
 class Rest_collision_engraver : public Engraver
 {
 protected:
@@ -43,7 +45,8 @@ public:
   TRANSLATOR_DECLARATIONS (Rest_collision_engraver);
 };
 
-Rest_collision_engraver::Rest_collision_engraver ()
+Rest_collision_engraver::Rest_collision_engraver (Context *c)
+  : Engraver (c)
 {
   rest_collision_ = 0;
 }
@@ -52,40 +55,37 @@ void
 Rest_collision_engraver::process_acknowledged ()
 {
   vsize rest_count = 0;
-  set<Grob*> columns;
+  set<Grob *> columns;
   Moment now = now_mom ();
 
   for (SCM s = get_property ("busyGrobs"); scm_is_pair (s); s = scm_cdr (s))
     {
-      Grob *g = unsmob_grob (scm_cdar (s));
-      Moment *m = unsmob_moment (scm_caar (s));
+      Grob *g = unsmob<Grob> (scm_cdar (s));
+      Moment *m = unsmob<Moment> (scm_caar (s));
       if (!g || !m)
-       continue;
-
-      if (Rhythmic_head::has_interface (g) && (*m) > now)
-       {
-         Grob *column = g->get_parent (X_AXIS);
-         if (!column)
-           {
-             g->warning (_ ("rhythmic head is not part of a rhythmic column"));
-             continue;
-           }
-
-         // Only include rests that start now. Include notes that started any time.
-         Paper_column *paper_column = dynamic_cast<Item*> (column)->get_column ();
-         if (!Rest::has_interface (g) || !paper_column || Paper_column::when_mom (paper_column) == now)
-           {
-             columns.insert (column);
-             rest_count += Note_column::has_rests (column);
-           }
-       }
+        continue;
+
+      if (has_interface<Rhythmic_head> (g) && (*m) > now)
+        {
+          Grob *column = g->get_parent (X_AXIS);
+          if (!column)
+              continue;
+
+          // Only include rests that start now. Include notes that started any time.
+          Paper_column *paper_column = dynamic_cast<Item *> (column)->get_column ();
+          if (!has_interface<Rest> (g) || !paper_column || Paper_column::when_mom (paper_column) == now)
+            {
+              columns.insert (column);
+              rest_count += Note_column::has_rests (column);
+            }
+        }
     }
 
   if (!rest_collision_ && rest_count && columns.size () > 1)
     {
       rest_collision_ = make_item ("RestCollision", SCM_EOL);
-      for (set<Grob*>::iterator i = columns.begin (); i != columns.end (); ++i)
-       Rest_collision::add_column (rest_collision_, *i);
+      for (set<Grob *>::iterator i = columns.begin (); i != columns.end (); ++i)
+        Rest_collision::add_column (rest_collision_, *i);
     }
 }
 
@@ -95,18 +95,22 @@ Rest_collision_engraver::stop_translation_timestep ()
   rest_collision_ = 0;
 }
 
-#include "translator.icc"
+void
+Rest_collision_engraver::boot ()
+{
+
+}
 
 ADD_TRANSLATOR (Rest_collision_engraver,
-               /* doc */
-               "Handle collisions of rests.",
+                /* doc */
+                "Handle collisions of rests.",
 
-               /* create */
-               "RestCollision ",
+                /* create */
+                "RestCollision ",
 
-               /* read */
-               "busyGrobs ",
+                /* read */
+                "busyGrobs ",
 
-               /* write */
-               ""
-               );
+                /* write */
+                ""
+               );