2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2000--2015 Juergen Reuter <reuter@ipd.uka.de>
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.
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.
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/>.
22 - do not show if a clef change immediately follows in the next line
24 - decide: do or do not print custos if the next line starts with a rest
28 #include <cmath> // rint
32 #include "direction.hh"
33 #include "font-interface.hh"
34 #include "international.hh"
36 #include "note-head.hh"
37 #include "staff-symbol-referencer.hh"
42 MAKE_SCHEME_CALLBACK (Custos, print, 1);
44 Custos::print (SCM smob)
46 Item *me = (Item *)unsmob<Grob> (smob);
48 SCM scm_style = me->get_property ("style");
50 if (scm_is_symbol (scm_style))
51 style = ly_symbol2string (scm_style);
56 * Shall we use a common custos font character regardless if on
57 * staffline or not, or shall we use individual font characters
62 int neutral_pos = robust_scm2int (me->get_property ("neutral-position"), 0);
63 Direction neutral_direction
64 = to_dir (me->get_property ("neutral-direction"));
66 int pos = Staff_symbol_referencer::get_rounded_position (me);
68 string font_char = "custodes." + style + ".";
69 if (pos < neutral_pos)
71 else if (pos > neutral_pos)
73 else if (neutral_direction == UP)
75 else if (neutral_direction == DOWN)
77 else // auto direction; not yet supported -> use "d"
81 font_char += Staff_symbol_referencer::on_line (me, pos) ? "1" : "0";
86 = Font_interface::get_default_font (me)->find_by_name (font_char);
87 if (stencil.is_empty ())
89 me->warning (_f ("custos `%s' not found", font_char));
93 return stencil.smobbed_copy ();
96 ADD_INTERFACE (Custos,
97 "A custos object. @code{style} can have four valid values:"
98 " @code{mensural}, @code{vaticana}, @code{medicaea}, and"
99 " @code{hufnagel}. @code{mensural} is the default style.",