Web-ja: update introduction

[lilypond.git] / lily / figured-bass-continuation.cc

diff --git a/lily/figured-bass-continuation.cc b/lily/figured-bass-continuation.cc
index 2f97de6dac069d389ae0fd3362427138a7170d9c..bb84bb3c3ef73f510332a7c7f9222e6130e88fca 100644 (file)
--- a/lily/figured-bass-continuation.cc
+++ b/lily/figured-bass-continuation.cc
@@ -1,10 +1,21 @@
 /*
-  figured-bass-continuation.cc -- implement Figured_bass_continuation
+  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--2007 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 "line-interface.hh"
@@ -15,23 +26,21 @@
 #include "pointer-group-interface.hh"
 #include "axis-group-interface.hh"
 
-
 #include "horizontal-bracket.hh"
 
 struct Figured_bass_continuation
 {
-  DECLARE_GROB_INTERFACE();
-  
+
 public:
-  DECLARE_SCHEME_CALLBACK(print, (SCM));
-  DECLARE_SCHEME_CALLBACK(center_on_figures, (SCM));
+  DECLARE_SCHEME_CALLBACK (print, (SCM));
+  DECLARE_SCHEME_CALLBACK (center_on_figures, (SCM));
 };
 
 MAKE_SCHEME_CALLBACK (Figured_bass_continuation, center_on_figures, 1);
 SCM
 Figured_bass_continuation::center_on_figures (SCM grob)
 {
-  Spanner *me = dynamic_cast<Spanner*> (unsmob_grob (grob));
+  Spanner *me = unsmob<Spanner> (grob);
   extract_grob_set (me, "figures", figures);
   if (figures.empty ())
     return scm_from_double (0.0);
@@ -47,45 +56,44 @@ MAKE_SCHEME_CALLBACK (Figured_bass_continuation, print, 1);
 SCM
 Figured_bass_continuation::print (SCM grob)
 {
-  Spanner *me = dynamic_cast<Spanner*> (unsmob_grob (grob));
+  Spanner *me = unsmob<Spanner> (grob);
+
+  Real thick
+    = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"))
+      * robust_scm2double (me->get_property ("thickness"), 1);
 
-  Real thick =
-    me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"))
-    * robust_scm2double (me->get_property ("thickness"), 1);
-  
   Interval spanned;
-  Direction d = LEFT;
+
   Grob *common = me->get_bound (LEFT)->common_refpoint (me->get_bound (RIGHT),
-                                                       X_AXIS);
-  do
+                                                        X_AXIS);
+  for (LEFT_and_RIGHT (d))
     {
       Item *bound = me->get_bound (d);
-      Direction extdir =
-       (d == LEFT && to_boolean (bound->get_property ("implicit")))
-       ? LEFT : RIGHT;
+      Direction extdir
+        = (d == LEFT && to_boolean (bound->get_property ("implicit")))
+          ? LEFT : RIGHT;
 
-      spanned[d] 
-       = robust_relative_extent (bound, common, X_AXIS)[extdir]
-       - me->relative_coordinate (common, X_AXIS);
+      spanned[d]
+        = robust_relative_extent (bound, common, X_AXIS)[extdir]
+          - me->relative_coordinate (common, X_AXIS);
     }
-  while (flip (&d) !=  LEFT);
   spanned.widen (- robust_scm2double (me->get_property ("padding"), 0.2));
-  
+
   Stencil extender;
   if (!spanned.is_empty ())
     extender = Line_interface::make_line (thick,
-                                         Offset (spanned[LEFT], 0),
-                                         Offset (spanned[RIGHT], 0));
-  
+                                          Offset (spanned[LEFT], 0),
+                                          Offset (spanned[RIGHT], 0));
+
   return extender.smobbed_copy ();
 }
 
-ADD_INTERFACE(Figured_bass_continuation,
-             "Simple extender line between bounds.",
-             
-             /* props */
-             "thickness "
-             "padding "
-             "figures "
-             );
-             
+ADD_INTERFACE (Figured_bass_continuation,
+               "Simple extender line between bounds.",
+
+               /* properties */
+               "thickness "
+               "padding "
+               "figures "
+              );
+