X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fparenthesis-engraver.cc;h=c9b9ec62a481047adb88ba7c5a432903ad1a5f27;hb=5d84bfad4626892bcffd05adcced53c8a2329047;hp=54e016f4d983a220fc106e451841ab1322bf8229;hpb=358d6e99ada8019268ade9ba9080b2d0d88eeb7a;p=lilypond.git

diff --git a/lily/parenthesis-engraver.cc b/lily/parenthesis-engraver.cc
index 54e016f4d9..c9b9ec62a4 100644
--- a/lily/parenthesis-engraver.cc
+++ b/lily/parenthesis-engraver.cc
@@ -1,18 +1,27 @@
 /*
-  parenthesis-engraver.cc -- implement Parenthesis_engraver
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2005--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 2005--2006 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
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "engraver.hh"
 
-#include "grob.hh"
 #include "item.hh"
 #include "pointer-group-interface.hh"
-#include "simple-closure.hh"
 #include "stream-event.hh"
 #include "warn.hh"
 
@@ -23,10 +32,11 @@ class Parenthesis_engraver : public Engraver
   TRANSLATOR_DECLARATIONS (Parenthesis_engraver);
 
 protected:
-  DECLARE_ACKNOWLEDGER (grob);
+  void acknowledge_grob (Grob_info);
 };
 
-Parenthesis_engraver::Parenthesis_engraver()
+Parenthesis_engraver::Parenthesis_engraver (Context *c)
+  : Engraver (c)
 {
 }
 
@@ -36,39 +46,50 @@ Parenthesis_engraver::acknowledge_grob (Grob_info info)
   if (Stream_event *ev = info.event_cause ())
     {
       if (to_boolean (ev->get_property ("parenthesize")))
-	{
-	  if (Item *victim = dynamic_cast<Item*> (info.grob ()))
-	    {
-	      Engraver *eng = dynamic_cast<Engraver*> (info.origin_translator ());
-	      Item *paren = eng->make_item ("ParenthesesItem", victim->self_scm ());
-	      Pointer_group_interface::add_grob (paren, ly_symbol2scm ("elements"), victim);
-
-	      paren->set_parent (victim, Y_AXIS);
-	      
-	      Real size = robust_scm2double (paren->get_property ("font-size"), 0.0)
-		+ robust_scm2double (victim->get_property ("font-size"), 0.0);
-	      paren->set_property ("font-size", scm_from_double (size));
-	      
-	      /*
-		TODO?
-
-		enlarge victim to allow for parentheses space? 
-	      */
-	    }
-	  else
-	    {
-	      programming_error ("Don't know how to parenthesize spanners.");
-	    }
-	}
+        {
+          if (Item *victim = dynamic_cast<Item *> (info.grob ()))
+            {
+              Engraver *eng = dynamic_cast<Engraver *> (info.origin_translator ());
+              Item *paren = eng->make_item ("ParenthesesItem", victim->self_scm ());
+              Pointer_group_interface::add_grob (paren, ly_symbol2scm ("elements"), victim);
+
+              paren->set_parent (victim, Y_AXIS);
+
+              Real size = robust_scm2double (paren->get_property ("font-size"), 0.0)
+                          + robust_scm2double (victim->get_property ("font-size"), 0.0);
+              paren->set_property ("font-size", scm_from_double (size));
+
+              /*
+                TODO?
+
+                enlarge victim to allow for parentheses space?
+              */
+            }
+          else
+            {
+              info.grob ()->warning ("Don't know how to parenthesize spanners.");
+            }
+        }
     }
 }
 
-ADD_ACKNOWLEDGER (Parenthesis_engraver, grob);
+void
+Parenthesis_engraver::boot ()
+{
+  ADD_ACKNOWLEDGER (Parenthesis_engraver, grob);
+}
+
 ADD_TRANSLATOR (Parenthesis_engraver,
-		/* doc */ "Parenthesize objects whose music cause has the @code{parenthesize} "
-		"property.",
-		
-		/* create */
-		"ParenthesesItem ",
-		/* read */ "",
-		/* write */ "");
+                /* doc */
+                "Parenthesize objects whose music cause has the"
+                " @code{parenthesize} property.",
+
+                /* create */
+                "ParenthesesItem ",
+
+                /* read */
+                "",
+
+                /* write */
+                ""
+               );