Web-ja: update introduction

[lilypond.git] / lily / bar-number-engraver.cc

diff --git a/lily/bar-number-engraver.cc b/lily/bar-number-engraver.cc
index 7b6af94f5f205768a4102256c7eba33d37387f7a..44f155df6e24298ca81a6f20c45b8b63904abd74 100644 (file)
--- a/lily/bar-number-engraver.cc
+++ b/lily/bar-number-engraver.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1997--2014 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
@@ -45,14 +45,13 @@ protected:
 
 protected:
   void stop_translation_timestep ();
-  DECLARE_TRANSLATOR_LISTENER (alternative);
-  DECLARE_ACKNOWLEDGER (break_alignment);
+  void listen_alternative (Stream_event *);
+  void acknowledge_break_alignment (Grob_info);
   void process_music ();
   void create_items ();
   TRANSLATOR_DECLARATIONS (Bar_number_engraver);
 };
 
-IMPLEMENT_TRANSLATOR_LISTENER (Bar_number_engraver, alternative);
 void
 Bar_number_engraver::listen_alternative (Stream_event *ev)
 {
@@ -62,8 +61,10 @@ Bar_number_engraver::listen_alternative (Stream_event *ev)
   alternative_event_ = ev;
   int current_barnumber = robust_scm2int (get_property ("currentBarNumber"), 0);
   Direction alternative_dir = robust_scm2dir (ev->get_property ("alternative-dir"), CENTER);
-  bool make_alternative = get_property ("alternativeNumberingStyle") == ly_symbol2scm ("numbers")
-                          || get_property ("alternativeNumberingStyle") == ly_symbol2scm ("numbers-with-letters");
+  bool make_alternative = scm_is_eq (get_property ("alternativeNumberingStyle"),
+                                     ly_symbol2scm ("numbers"))
+                          || scm_is_eq (get_property ("alternativeNumberingStyle"),
+                                        ly_symbol2scm ("numbers-with-letters"));
   if (make_alternative)
     {
       /*
@@ -100,7 +101,7 @@ Bar_number_engraver::process_music ()
           create_items ();
           SCM alternative_style = get_property ("alternativeNumberingStyle");
           string text_tag = "";
-          if (alternative_style == ly_symbol2scm ("numbers-with-letters"))
+          if (scm_is_eq (alternative_style, ly_symbol2scm ("numbers-with-letters")))
             {
               if (alternative_event_)
                 {
@@ -134,7 +135,8 @@ Bar_number_engraver::process_music ()
     }
 }
 
-Bar_number_engraver::Bar_number_engraver ()
+Bar_number_engraver::Bar_number_engraver (Context *c)
+  : Engraver (c)
 {
   text_ = 0;
   alternative_starting_bar_number_ = 0;
@@ -175,7 +177,13 @@ Bar_number_engraver::create_items ()
   text_ = make_item ("BarNumber", SCM_EOL);
 }
 
-ADD_ACKNOWLEDGER (Bar_number_engraver, break_alignment);
+
+void
+Bar_number_engraver::boot ()
+{
+  ADD_LISTENER (Bar_number_engraver, alternative);
+  ADD_ACKNOWLEDGER (Bar_number_engraver, break_alignment);
+}
 
 ADD_TRANSLATOR (Bar_number_engraver,
                 /* doc */