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diff --git a/gtk2_ardour/automation_controller.h b/gtk2_ardour/automation_controller.h
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+/*
+    Copyright (C) 2007 Paul Davis 
+	Author: Dave Robillard
+
+    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.
+
+*/
+
+#ifndef __ardour_gtk_automation_controller_h__
+#define __ardour_gtk_automation_controller_h__
+
+#include <boost/shared_ptr.hpp>
+#include <gtkmm.h>
+#include <gtkmm2ext/barcontroller.h>
+
+namespace ARDOUR {
+	class Session;
+	class AutomationList;
+	class AutomationControl;
+}
+
+
+class AutomationController : public Gtkmm2ext::BarController {
+public:
+	static boost::shared_ptr<AutomationController> create(
+			ARDOUR::Session& s,
+			boost::shared_ptr<ARDOUR::AutomationList> al,
+			boost::shared_ptr<ARDOUR::AutomationControl> ac);
+
+	~AutomationController();
+	
+	boost::shared_ptr<ARDOUR::AutomationControl> controllable() { return _controllable; }
+	
+	void update_label(char* label, int label_len);
+	void display_effective_value();
+	void value_adjusted();
+
+private:
+	AutomationController(boost::shared_ptr<ARDOUR::AutomationControl> ac, Gtk::Adjustment* adj);
+	void start_touch();
+	void end_touch();
+
+	bool                                         _ignore_change;
+	boost::shared_ptr<ARDOUR::AutomationControl> _controllable;
+	Gtk::Adjustment*                             _adjustment;
+	sigc::connection                             _screen_update_connection;
+};
+
+
+#endif /* __ardour_gtk_automation_controller_h__ */