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diff --git a/src/libs/gui/ControlPanel.hpp b/src/libs/gui/ControlPanel.hpp
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+/* This file is part of Ingen.
+ * Copyright (C) 2007 Dave 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 CONTROLPANEL_H
+#define CONTROLPANEL_H
+
+#include <vector>
+#include <string>
+#include <iostream>
+#include <utility> // for pair<>
+#include <sigc++/sigc++.h>
+#include <gtkmm.h>
+#include <libglademm/xml.h>
+#include <libglademm.h>
+#include <raul/Path.hpp>
+#include "ControlGroups.hpp"
+
+
+using std::vector; using std::string; using std::pair;
+using std::cerr; using std::cout; using std::endl;
+
+namespace Ingen { namespace Client {
+	class PortModel;
+	class NodeModel;
+} }
+using namespace Ingen::Client;
+
+namespace Ingen {
+namespace GUI {
+
+
+/** A group of controls for a node (or patch).
+ *
+ * Used by both NodeControlWindow and the main window (for patch controls).
+ *
+ * \ingroup GUI
+ */
+class ControlPanel : public Gtk::HBox {
+public:
+	ControlPanel(BaseObjectType* cobject, const Glib::RefPtr<Gnome::Glade::Xml>& glade_xml);
+	virtual ~ControlPanel();
+	
+	void init(SharedPtr<NodeModel> node, size_t poly);
+
+	ControlGroup* find_port(const Path& path) const;
+
+	void add_port(SharedPtr<PortModel> port);
+	void remove_port(const Path& path);
+
+	void enable_port(const Path& path);
+	void disable_port(const Path& path);
+	
+	size_t        num_controls() const { return _controls.size(); }
+	pair<int,int> ideal_size()   const { return _ideal_size; }
+	
+	// Callback for ControlGroup
+	void value_changed(SharedPtr<PortModel> port_path, float val);
+	
+private:
+	void all_voices_selected();
+	void specific_voice_selected();
+	void voice_selected();
+
+	bool _callback_enabled;
+	
+	pair<int,int> _ideal_size;
+
+	vector<ControlGroup*>    _controls;
+	Gtk::VBox*               _control_box;
+	Gtk::Box*                _voice_control_box;
+	Gtk::RadioButton*        _all_voices_radio;
+	Gtk::RadioButton*        _specific_voice_radio;
+	Gtk::SpinButton*         _voice_spinbutton;
+};
+
+
+} // namespace GUI
+} // namespace Ingen
+
+#endif // CONTROLPANEL_H