/*
- stream-event.cc -- implement Scheme bindings for Stream_event
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2006--2014 Erik Sandberg <mandolaerik@gmail.com>
- (c) 2006 Erik Sandberg <mandolaerik@gmail.com>
+ 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 "stream-event.hh"
+LY_DEFINE (ly_stream_event_p, "ly:stream-event?",
+ 1, 0, 0, (SCM obj),
+ "Is @code{@var{obj}} a @code{Stream_event} object?")
+{
+ return scm_from_bool (Stream_event::unsmob (obj));
+}
+
LY_DEFINE (ly_make_stream_event, "ly:make-stream-event",
- 1, 0, 0, (SCM proplist),
- "Creates a stream event, with the given property list.\n" )
+ 1, 1, 0, (SCM cl, SCM proplist),
+ "Create a stream event of class @var{cl} with the given"
+ " mutable property list.")
{
- SCM_ASSERT_TYPE (scm_list_p (proplist), proplist, SCM_ARG1, __FUNCTION__, "association list");
- Stream_event *e = new Stream_event (proplist);
+ LY_ASSERT_TYPE (ly_is_pair, cl, 1);
+
+ /* should be scm_list_p, but scm_list_p is expensive. */
+ LY_ASSERT_TYPE (scm_is_pair, proplist, 2);
+
+ if (proplist == SCM_UNDEFINED)
+ proplist = SCM_EOL;
+
+ Stream_event *e = new Stream_event (cl, proplist);
return e->unprotect ();
}
-LY_DEFINE (ly_stream_event_property, "ly:stream-event-property",
- 2, 0, 0, (SCM sev, SCM sym),
- "Get the property @var{sym} of stream event @var{mus}.\n"
- "If @var{sym} is undefined, return @code{' ()}.\n")
+LY_DEFINE (ly_event_property, "ly:event-property",
+ 2, 1, 0, (SCM sev, SCM sym, SCM val),
+ "Get the property @var{sym} of stream event @var{sev}."
+ " If @var{sym} is undefined, return @var{val} or"
+ " @code{'()} if @var{val} is not specified.")
+{
+ LY_ASSERT_TYPE (Stream_event::unsmob, sev, 1)
+ return ly_prob_property (sev, sym, val);
+}
+
+LY_DEFINE (ly_event_set_property_x, "ly:event-set-property!",
+ 3, 0, 0, (SCM ev, SCM sym, SCM val),
+ "Set property @var{sym} in event @var{ev} to @var{val}.")
+{
+ LY_ASSERT_TYPE (Stream_event::unsmob, ev, 1);
+ LY_ASSERT_TYPE (ly_is_symbol, sym, 2);
+
+ return ly_prob_set_property_x (ev, sym, val);
+}
+
+LY_DEFINE (ly_event_deep_copy, "ly:event-deep-copy",
+ 1, 0, 0, (SCM m),
+ "Copy @var{m} and all sub expressions of@tie{}@var{m}.")
{
- Stream_event *e = unsmob_stream_event (sev);
- SCM_ASSERT_TYPE (e, sev, SCM_ARG1, __FUNCTION__, "stream event");
- SCM_ASSERT_TYPE (scm_is_symbol (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
+ SCM copy = m;
+ if (Stream_event *ev = Stream_event::unsmob (m))
+ {
+ ev = ev->clone ();
+ copy = ev->unprotect ();
+ }
+ else if (scm_is_pair (m))
+ copy = scm_cons (ly_event_deep_copy (scm_car (m)),
+ ly_event_deep_copy (scm_cdr (m)));
- return e->internal_get_property (sym);
+ return copy;
}