X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;ds=sidebyside;f=lily%2Fstream-event-scheme.cc;h=ea9365496187c371bbe721be6b72906b1b8586f2;hb=3ee0df13c3fe001cef0bef15adcbadfb2c394fd8;hp=bdccd1483b7c26d2d50bc930448fd2a3516bcc66;hpb=2a8dcc4faa8a16229774d3414eedbf46feceac84;p=lilypond.git

diff --git a/lily/stream-event-scheme.cc b/lily/stream-event-scheme.cc
index bdccd1483b..ea93654961 100644
--- a/lily/stream-event-scheme.cc
+++ b/lily/stream-event-scheme.cc
@@ -9,15 +9,21 @@
 #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");
+  if (proplist != SCM_UNDEFINED)
+    {
+      SCM_ASSERT_TYPE (scm_list_p (proplist), proplist, SCM_ARG2, __FUNCTION__, "association list");
+    }
+  else
+    proplist = SCM_EOL;
+  Stream_event *e = new Stream_event (cl, proplist);
   return e->unprotect ();
 }
 
-LY_DEFINE (ly_stream_event_property, "ly:stream-event-property", 
+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")
@@ -28,3 +34,11 @@ LY_DEFINE (ly_stream_event_property, "ly:stream-event-property",
 
   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);
+}