2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
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/>.
20 #include "engraver.hh"
23 LY_DEFINE (ly_engraver_make_grob, "ly:engraver-make-grob",
24 3, 0, 0, (SCM engraver, SCM grob_name, SCM cause),
25 "Create a grob originating from given @var{engraver} instance,"
26 " with given @var{grob-name}, a symbol."
27 " @var{cause} should either be another grob"
30 LY_ASSERT_SMOB (Engraver, engraver, 1);
31 LY_ASSERT_TYPE (ly_is_symbol, grob_name, 2);
32 LY_ASSERT_TYPE (ly_is_grob_cause, cause, 3);
34 Grob *g = Engraver::unsmob (engraver)->
35 internal_make_grob (grob_name, cause,
36 ly_symbol2string (grob_name).c_str (),
37 "scheme", 0, "scheme");
38 return g->self_scm ();
41 LY_DEFINE (ly_engraver_announce_end_grob, "ly:engraver-announce-end-grob",
42 3, 0, 0, (SCM engraver, SCM grob, SCM cause),
43 "Announce the end of a grob (i.e., the end of a spanner)"
44 " originating from given @var{engraver} instance, with"
45 " @var{grob} being a grob. @var{cause} should either"
46 " be another grob or a music event.")
48 LY_ASSERT_SMOB (Engraver, engraver, 1);
49 LY_ASSERT_SMOB (Grob, grob, 2);
50 LY_ASSERT_TYPE (ly_is_grob_cause, cause, 3);
52 Engraver::unsmob (engraver)->
53 announce_end_grob (Grob::unsmob (grob), cause);
55 return SCM_UNSPECIFIED;