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diff --git a/ingen/client/ConnectionModel.hpp b/ingen/client/ConnectionModel.hpp
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+/* This file is part of Ingen.
+ * Copyright 2007-2011 David Robillard <http://drobilla.net>
+ *
+ * Ingen 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.
+ *
+ * Ingen 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef INGEN_CLIENT_CONNECTIONMODEL_HPP
+#define INGEN_CLIENT_CONNECTIONMODEL_HPP
+
+#include <cassert>
+
+#include "raul/Path.hpp"
+#include "raul/SharedPtr.hpp"
+
+#include "ingen/Connection.hpp"
+#include "ingen/client/PortModel.hpp"
+
+namespace Ingen {
+namespace Client {
+
+class ClientStore;
+
+/** Class to represent a port->port connections in the engine.
+ *
+ * \ingroup IngenClient
+ */
+class ConnectionModel : public Connection
+{
+public:
+	SharedPtr<PortModel> src_port() const { return _src_port; }
+	SharedPtr<PortModel> dst_port() const { return _dst_port; }
+
+	const Raul::Path& src_port_path() const { return _src_port->path(); }
+	const Raul::Path& dst_port_path() const { return _dst_port->path(); }
+
+private:
+	friend class ClientStore;
+
+	ConnectionModel(SharedPtr<PortModel> src, SharedPtr<PortModel> dst)
+		: _src_port(src)
+		, _dst_port(dst)
+	{
+		assert(_src_port);
+		assert(_dst_port);
+		assert(_src_port->parent());
+		assert(_dst_port->parent());
+		assert(_src_port->path() != _dst_port->path());
+	}
+
+	const SharedPtr<PortModel> _src_port;
+	const SharedPtr<PortModel> _dst_port;
+};
+
+} // namespace Client
+} // namespace Ingen
+
+#endif // INGEN_CLIENT_CONNECTIONMODEL_HPP