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/*
This file is part of LilyPond, the GNU music typesetter.
Copyright (C) 2010--2015 Jan Nieuwenhuizen <janneke@gnu.org>
Han-Wen Nienhuys <hanwen@xs4all.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 "context.hh"
#include "context-mod.hh"
LY_DEFINE (ly_get_context_mods, "ly:get-context-mods",
1, 0, 0, (SCM contextmod),
"Returns the list of context modifications stored in"
" @var{contextmod}.")
{
Context_mod *tr = unsmob<Context_mod> (contextmod);
LY_ASSERT_SMOB (Context_mod, contextmod, 1);
return tr->get_mods ();
}
LY_DEFINE (ly_add_context_mod, "ly:add-context-mod",
2, 0, 0, (SCM contextmods, SCM modification),
"Adds the given context @var{modification} to the list"
" @var{contextmods} of context modifications.")
{
Context_mod *ctxmod = unsmob<Context_mod> (contextmods);
LY_ASSERT_SMOB (Context_mod, contextmods, 1);
ctxmod->add_context_mod (modification);
return SCM_UNSPECIFIED;
}
LY_DEFINE (ly_make_context_mod, "ly:make-context-mod",
0, 1, 0, (SCM mod_list),
"Creates a context modification, optionally initialized"
" via the list of modifications @var{mod-list}.")
{
if (!SCM_UNBNDP (mod_list))
{
LY_ASSERT_TYPE (ly_cheap_is_list, mod_list, 1);
return Context_mod (mod_list).smobbed_copy ();
}
else
return Context_mod ().smobbed_copy ();
}
LY_DEFINE (ly_context_mod_apply_x, "ly:context-mod-apply!",
2, 0, 0, (SCM context, SCM mod),
"Apply the context modification @var{mod} to @var{context}.")
{
LY_ASSERT_SMOB (Context, context, 1);
LY_ASSERT_SMOB (Context_mod, mod, 2);
apply_property_operations (unsmob<Context> (context),
unsmob<Context_mod> (mod)->get_mods ());
scm_remember_upto_here_1 (context);
return SCM_UNSPECIFIED;
}
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