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diff --git a/src/progs/ingenuity/Controller.h b/src/progs/ingenuity/Controller.h
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+/* This file is part of Om.  Copyright (C) 2006 Dave Robillard.
+ * 
+ * Om 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.
+ * 
+ * Om 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 CONTROLLER_H
+#define CONTROLLER_H
+
+#include <cassert>
+#include <string>
+#include <list>
+#include <glibmm.h>
+#include "PluginModel.h"
+#include "OSCModelEngineInterface.h"
+
+namespace LibOmClient {
+class PatchModel;
+class NodeModel;
+class PatchLibrarian;
+}
+
+using std::string; using std::list;
+using namespace LibOmClient;
+
+namespace OmGtk {
+
+class PatchController;
+class Loader;
+
+	
+/** Singleton engine controller for the entire app.
+ *
+ * This is hardly more than a trivial wrapper for OSCModelEngineInterface, suggesting something
+ * needs a rethink around here..
+ *
+ * This needs to be either eliminated or the name changed to OmController.  Probably
+ * best to keep around in case multiple engine control support comes around?
+ *
+ * \ingroup OmGtk
+ */
+class Controller : public OSCModelEngineInterface
+{
+public:
+	~Controller();
+
+	void attach();
+	
+	//void register_client_and_wait();
+
+	void set_engine_url(const string& url);
+
+	void create_node_from_model(const NodeModel* nm);
+
+	void load_patch(PatchModel* model, bool wait = true, bool merge = false);
+	void save_patch(PatchModel* model, const string& filename, bool recursive);
+
+	void create_patch_from_model(const PatchModel* pm);
+
+	//void lash_restore_finished();
+
+	void set_patch_path(const string& path);
+
+	/*
+	void push_added_node(NodeModel* nm) { m_added_nodes.push_back(nm); }
+	NodeModel* yank_added_node(const string& path);
+
+	void push_added_patch(PatchModel* pm) { m_added_patches.push_back(pm); }
+	PatchModel* yank_added_patch(const string& path);
+	*/
+
+	static void instantiate(const string& engine_url)
+	{ if (!_instance) _instance = new Controller(engine_url); }
+
+	inline static Controller& instance() { assert(_instance); return *_instance; }
+
+private:
+	Controller(const string& engine_url);
+	static Controller* _instance;
+	
+	PatchLibrarian*   m_patch_librarian;
+	Loader*           m_loader;
+
+	/** Used to cache added nodes so client can remember some values when the
+	 * new node notification comes (location, etc).  Used to prevent the node
+	 * jumping locations during the delay between new node and the module-x/y
+	 * metadata notifications */
+	//list<NodeModel*> m_added_nodes;
+
+	/** Used to cache added patches in the same was as m_added_nodes.  Used to
+	 * rember filename so File->Save can work without prompting (filename can't
+	 * be sent to the server as metadata, because a client on another machine
+	 * doesn't want that information) */
+	//list<PatchModel*> m_added_patches;
+};
+
+
+} // namespace OmGtk
+
+#endif // CONTROLLER_H