Web-ja: update introduction

[lilypond.git] / lily / clef.cc

diff --git a/lily/clef.cc b/lily/clef.cc
index 589ca0856ec3ec45bf6ffd9419767baea31f13ce..6f9062190ef46f91b37ffbbc6b99f3cf01dd70f4 100644 (file)
--- a/lily/clef.cc
+++ b/lily/clef.cc
@@ -1,77 +1,79 @@
-
 /*
-  clef.cc -- implement Clef_item
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c)  1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.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 "clef.hh"
-#include "string.hh"
-#include "molecule.hh"
-#include "item.hh"
+
 #include "font-interface.hh"
+#include "international.hh"
+#include "item.hh"
+#include "stencil.hh"
 
-/*
- FIXME: should use symbol for #'style.
-*/
-MAKE_SCHEME_CALLBACK (Clef,before_line_breaking,1);
+MAKE_SCHEME_CALLBACK (Clef, calc_glyph_name, 1);
 SCM
-Clef::before_line_breaking (SCM smob)
+Clef::calc_glyph_name (SCM smob)
 {
-  Item * s = unsmob_item (smob);
+  Item *s = unsmob<Item> (smob);
+  SCM glyph = s->get_property ("glyph");
 
-  SCM glyph = s->get_grob_property ("glyph-name");
-  
-  if (gh_string_p (glyph))
-    {
-      String str = ly_scm2string (glyph);
-
-      if (to_boolean (s->get_grob_property ("non-default"))
-         && s->break_status_dir () != RIGHT
-         && !to_boolean (s->get_grob_property ("full-size-change")))
-       {
-         str += "_change";
-         s->set_grob_property ("glyph-name", ly_str02scm (str.ch_C ()));         
-       }
-    }
-  else
+  if (scm_is_string (glyph))
     {
-      s->suicide ();
-      return SCM_UNSPECIFIED;
+      string str = ly_scm2string (glyph);
+
+      if (to_boolean (s->get_property ("non-default"))
+          && s->break_status_dir () != RIGHT
+          && !to_boolean (s->get_property ("full-size-change")))
+        {
+          str += "_change";
+        }
+
+      return ly_string2scm (str);
     }
 
+  s->suicide ();
   return SCM_UNSPECIFIED;
 }
 
-bool
-Clef::has_interface (Grob* me)
-{
-  return me->has_interface (ly_symbol2scm ("clef-interface"));
-}
-
-
-
-MAKE_SCHEME_CALLBACK (Clef,brew_molecule,1)
+MAKE_SCHEME_CALLBACK (Clef, print, 1)
 SCM
-Clef::brew_molecule (SCM smob) 
+Clef::print (SCM smob)
 {
-  Grob * sc = unsmob_grob (smob);
-  SCM glyph = sc->get_grob_property ("glyph-name");
-  if (gh_string_p (glyph))
-    {
-      return Font_interface::get_default_font (sc)->find_by_name (String (ly_scm2string (glyph))).smobbed_copy ();
-    }
-  else
-    {
-      return SCM_EOL;
-    }
+  Grob *me = unsmob<Grob> (smob);
+  SCM glyph_scm = me->get_property ("glyph-name");
+  if (!scm_is_string (glyph_scm))
+    return SCM_EOL;
+
+  string glyph = string (ly_scm2string (glyph_scm));
+  Font_metric *fm = Font_interface::get_default_font (me);
+  Stencil out = fm->find_by_name (glyph);
+  if (out.is_empty ())
+    me->warning (_f ("clef `%s' not found", glyph.c_str ()));
+
+  return out.smobbed_copy ();
 }
 
+ADD_INTERFACE (Clef,
+               "A clef sign.",
 
-ADD_INTERFACE (Clef, "clef-interface",
-  "A clef sign",
-  "non-default full-size-change glyph-name");
+               /* properties */
+               "full-size-change "
+               "glyph "
+               "glyph-name "
+               "non-default "
+              );