source file of the GNU LilyPond music typesetter
- (c) 2006 Erik Sandberg <mandolaerik@gmail.com>
+ (c) 2006--2007 Erik Sandberg <mandolaerik@gmail.com>
*/
#include "stream-event.hh"
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),
+ "Creates a stream event of class @var{cl} with the given mutable property list.\n" )
{
- SCM_ASSERT_TYPE (scm_list_p (proplist), proplist, SCM_ARG1, __FUNCTION__, "association list");
- Stream_event *e = new Stream_event (proplist);
+ SCM_ASSERT_TYPE (scm_is_symbol (cl), cl, SCM_ARG1, __FUNCTION__, "symbol");
+
+ /* should be scm_list_p, but scm_list_p is expensive. */
+ SCM_ASSERT_TYPE (scm_is_pair (proplist), proplist, SCM_ARG2, __FUNCTION__, "association list");
+
+ if (proplist == SCM_UNDEFINED)
+ proplist = SCM_EOL;
+
+ Stream_event *e = new Stream_event (cl, proplist);
return e->unprotect ();
}
LY_DEFINE (ly_event_property, "ly: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")
+ "If @var{sym} is undefined, return @code{'()}.\n")
{
Stream_event *e = unsmob_stream_event (sev);
SCM_ASSERT_TYPE (e, sev, SCM_ARG1, __FUNCTION__, "stream event");
return e->internal_get_property (sym);
}
+
+LY_DEFINE (ly_event_set_property, "ly:event-set-property!",
+ 3, 0, 0, (SCM ev, SCM sym, SCM val),
+ "Set property @var{sym} in event @var{ev} to @var{val}."){
+ Stream_event *sc = unsmob_stream_event (ev);
+ SCM_ASSERT_TYPE (sc, ev, SCM_ARG1, __FUNCTION__, "event");
+ 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 @var{m}")
+{
+ SCM copy = m;
+ if (Stream_event *ev = unsmob_stream_event (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 copy;
+}