lily/clef.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "clef.hh"
  21
  22 #include "font-interface.hh"
  23 #include "international.hh"
  24 #include "item.hh"
  25 #include "stencil.hh"
  26
  27 MAKE_SCHEME_CALLBACK (Clef, calc_glyph_name, 1);
  28 SCM
  29 Clef::calc_glyph_name (SCM smob)
  30 {
  31   Item *s = unsmob_item (smob);
  32   SCM glyph = s->get_property ("glyph");
  33
  34   if (scm_is_string (glyph))
  35     {
  36       string str = ly_scm2string (glyph);
  37
  38       if (to_boolean (s->get_property ("non-default"))
  39           && s->break_status_dir () != RIGHT
  40           && !to_boolean (s->get_property ("full-size-change")))
  41         {
  42           str += "_change";
  43         }
  44
  45       return ly_string2scm (str);
  46     }
  47
  48   s->suicide ();
  49   return SCM_UNSPECIFIED;
  50 }
  51
  52 MAKE_SCHEME_CALLBACK (Clef, print, 1)
  53 SCM
  54 Clef::print (SCM smob)
  55 {
  56   Grob *me = unsmob_grob (smob);
  57   SCM glyph_scm = me->get_property ("glyph-name");
  58   if (!scm_is_string (glyph_scm))
  59     return SCM_EOL;
  60
  61   string glyph = string (ly_scm2string (glyph_scm));
  62   Font_metric *fm = Font_interface::get_default_font (me);
  63   Stencil out = fm->find_by_name (glyph);
  64   if (out.is_empty ())
  65     me->warning (_f ("clef `%s' not found", glyph.c_str ()));
  66   return out.smobbed_copy ();
  67 }
  68
  69 ADD_INTERFACE (Clef,
  70                "A clef sign.",
  71
  72                /* properties */
  73                "full-size-change "
  74                "glyph "
  75                "glyph-name "
  76                "non-default "
  77                );
  78