2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2007--2015 Han-Wen Nienhuys <hanwen@lilypond.org>
7 LilyPond is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 LilyPond is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
21 #include "all-font-metrics.hh"
23 #include "protected-scm.hh"
27 All_font_metrics *all_fonts_global = 0;
28 Protected_scm all_fonts_global_scm;
30 LY_DEFINE (ly_reset_all_fonts, "ly:reset-all-fonts", 0, 0, 0,
32 "Forget all about previously loaded fonts.")
34 all_fonts_global = new All_font_metrics (global_path.to_string ());
35 all_fonts_global_scm = all_fonts_global->unprotect ();
37 return SCM_UNSPECIFIED;
40 LY_DEFINE (ly_system_font_load, "ly:system-font-load", 1, 0, 0,
42 "Load the OpenType system font @file{@var{name}.otf}."
43 " Fonts loaded with this command must contain three"
44 " additional SFNT font tables called @code{LILC},"
45 " @code{LILF}, and @code{LILY}, needed for typesetting"
46 " musical elements. Currently, only the Emmentaler and"
47 " the Emmentaler-Brace fonts fulfill these requirements.\n"
49 "Note that only @code{ly:font-get-glyph} and derived"
50 " code (like @code{\\lookup}) can access glyphs from"
51 " the system fonts; text strings are handled exclusively"
52 " via the Pango interface.")
54 LY_ASSERT_TYPE (scm_is_string, name, 1);
56 string name_str = ly_scm2string (name);
57 Font_metric *fm = all_fonts_global->find_font (name_str);
59 return fm->self_scm ();