add missing file

libs/ardour/scene_change.cc

@@ -0,0 +1,45 @@
+/*
+    Copyright (C) 2014 Paul Davis
+
+    This program 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 2 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "ardour/midi_scene_change.h"
+
+#include "i18n.h"
+
+using namespace PBD;
+using namespace ARDOUR;
+
+std::string SceneChange::xml_node_name = X_("SceneChange");
+
+boost::shared_ptr<SceneChange>
+SceneChange::factory (const XMLNode& node, int version)
+{
+	const XMLProperty* prop = node.property (X_("type"));
+
+	if (prop->value() == X_("MIDI")) {
+		return boost::shared_ptr<SceneChange> (new MIDISceneChange (node, version));
+	}
+
+	return boost::shared_ptr<SceneChange>();
+}
+
+void
+SceneChange::set_time (framepos_t t)
+{
+	_time = t;
+}