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diff --git a/src/engine/machina/MachineBuilder.hpp b/src/engine/machina/MachineBuilder.hpp
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+++ b/src/engine/machina/MachineBuilder.hpp
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+/* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef MACHINA_MACHINEBUILDER_HPP
+#define MACHINA_MACHINEBUILDER_HPP
+
+#include <list>
+#include <raul/types.h>
+#include <raul/SharedPtr.h>
+
+namespace Machina {
+
+class Machine;
+class Node;
+
+
+class MachineBuilder {
+public:
+	MachineBuilder(SharedPtr<Machine> machine);
+
+	void set_time(Raul::BeatTime time) { _time = time; }
+
+	void event(Raul::BeatTime time_offset, size_t size, unsigned char* buf);
+	
+	void reset();
+	void resolve();
+
+	SharedPtr<Machine> finish();
+
+private:
+	bool is_delay_node(SharedPtr<Node> node) const;
+
+	SharedPtr<Node>
+	connect_nodes(SharedPtr<Machine> m,
+                  SharedPtr<Node>    tail, Raul::BeatTime tail_end_time,
+     	          SharedPtr<Node>    head, Raul::BeatTime head_start_time);
+	
+	typedef std::list<SharedPtr<Node> > ActiveList;
+	ActiveList _active_nodes;
+	
+	typedef std::list<std::pair<Raul::BeatTime, SharedPtr<Node> > > PolyList;
+	PolyList _poly_nodes;
+	
+	Raul::BeatTime     _time;
+
+	SharedPtr<Machine> _machine;
+	SharedPtr<Node>    _initial_node;
+	SharedPtr<Node>    _connect_node;
+	Raul::BeatTime     _connect_node_end_time;
+};
+
+
+} // namespace Machina
+
+#endif // MACHINA_MACHINEBUILDER_HPP