X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fbreak-align-engraver.cc;h=160f6fe7ec2b62244ba323960f08b605ac9249bf;hb=5d84bfad4626892bcffd05adcced53c8a2329047;hp=167f59de843cb95b714c773cae891baee91a4065;hpb=08560a1b8076630c4fc6cb9b902614d8b74fd6fc;p=lilypond.git

diff --git a/lily/break-align-engraver.cc b/lily/break-align-engraver.cc
index 167f59de84..160f6fe7ec 100644
--- a/lily/break-align-engraver.cc
+++ b/lily/break-align-engraver.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1999--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1999--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
@@ -40,8 +40,8 @@ protected:
   virtual void derived_mark () const;
 public:
   TRANSLATOR_DECLARATIONS (Break_align_engraver);
-  DECLARE_ACKNOWLEDGER (break_aligned);
-  DECLARE_ACKNOWLEDGER (break_alignable);
+  void acknowledge_break_aligned (Grob_info);
+  void acknowledge_break_alignable (Grob_info);
 };
 
 void
@@ -53,7 +53,8 @@ Break_align_engraver::stop_translation_timestep ()
   left_edge_ = 0;
 }
 
-Break_align_engraver::Break_align_engraver ()
+Break_align_engraver::Break_align_engraver (Context *c)
+  : Engraver (c)
 {
   column_alist_ = SCM_EOL;
   left_edge_ = 0;
@@ -118,7 +119,7 @@ Break_align_engraver::create_alignment (Grob_info inf)
   Context *origin = inf.origin_contexts (this)[0];
 
   Translator_group *tg = origin->implementation ();
-  Engraver *random_source = dynamic_cast<Engraver *> (unsmob_translator (scm_car (tg->get_simple_trans_list ())));
+  Engraver *random_source = unsmob<Engraver> (scm_car (tg->get_simple_trans_list ()));
   if (!random_source)
     random_source = this;
 
@@ -136,9 +137,9 @@ Break_align_engraver::add_to_group (SCM align_name, Item *item)
   SCM s = scm_assoc (align_name, column_alist_);
   Item *group = 0;
 
-  if (s != SCM_BOOL_F)
+  if (scm_is_true (s))
     {
-      Grob *e = unsmob_grob (scm_cdr (s));
+      Grob *e = unsmob<Grob> (scm_cdr (s));
       group = dynamic_cast<Item *> (e);
     }
   else
@@ -155,8 +156,13 @@ Break_align_engraver::add_to_group (SCM align_name, Item *item)
   Axis_group_interface::add_element (group, item);
 }
 
-ADD_ACKNOWLEDGER (Break_align_engraver, break_aligned);
-ADD_ACKNOWLEDGER (Break_align_engraver, break_alignable);
+void
+Break_align_engraver::boot ()
+{
+  ADD_ACKNOWLEDGER (Break_align_engraver, break_aligned);
+  ADD_ACKNOWLEDGER (Break_align_engraver, break_alignable);
+}
+
 ADD_TRANSLATOR (Break_align_engraver,
                 /* doc */
                 "Align grobs with corresponding @code{break-align-symbols}"