Serialization of edges.

git-svn-id: http://svn.drobilla.net/lad/machina@335 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 63 insertions, 0 deletions

diff --git a/src/engine/Edge.cpp b/src/engine/Edge.cpp
new file mode 100644
index 0000000..16bc202
--- /dev/null
+++ b/src/engine/Edge.cpp
@@ -0,0 +1,63 @@
+/* This file is part of Machina.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ * 
+ * Machina 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.
+ * 
+ * Machina 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 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#include <raul/RDFWriter.h>
+#include "machina/Node.hpp"
+#include "machina/Edge.hpp"
+
+namespace Machina {
+
+
+void
+Edge::write_state(Raul::RDFWriter& writer)
+{
+	using Raul::RdfId;
+
+	if (!_id)
+		set_id(writer.blank_id());
+
+	writer.write(_id,
+			RdfId(RdfId::RESOURCE, "rdf:type"),
+			RdfId(RdfId::RESOURCE, "machina:Edge"));
+
+	SharedPtr<Node> src = _src.lock();
+	SharedPtr<Node> dst = _dst;
+
+	if (!src || !dst)
+		return;
+
+	if (!src->id())
+		src->set_id(writer.blank_id());
+
+	if (!dst->id())
+		dst->set_id(writer.blank_id());
+
+	writer.write(_id,
+			RdfId(RdfId::RESOURCE, "machina:tail"),
+			src->id());
+
+	writer.write(_id,
+			RdfId(RdfId::RESOURCE, "machina:head"),
+			dst->id());
+	
+	writer.write(_id,
+			RdfId(RdfId::RESOURCE, "machina:probability"),
+			_probability.get());
+}
+
+
+} // namespace Machina