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diff --git a/indra/newview/lloutputmonitorctrl.h b/indra/newview/lloutputmonitorctrl.h
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+/** 
+ * @file lloutputmonitorctrl.h
+ * @brief LLOutputMonitorCtrl base class
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLOUTPUTMONITORCTRL_H
+#define LL_LLOUTPUTMONITORCTRL_H
+
+#include "v4color.h"
+#include "llview.h"
+
+class LLTextBox;
+class LLUICtrlFactory;
+
+//
+// Classes
+//
+
+class LLOutputMonitorCtrl
+: public LLView
+{
+public:
+	struct Params : public LLInitParam::Block<Params, LLView::Params>
+	{
+		Optional<bool>	draw_border;
+
+		Params()
+		{
+			draw_border = true;
+			name = "output_monitor";
+			follows.flags(FOLLOWS_LEFT|FOLLOWS_TOP);
+			mouse_opaque = false;
+		};
+	};
+protected:
+	bool	mBorder;
+	LLOutputMonitorCtrl(const Params&);
+	friend class LLUICtrlFactory;
+
+public:
+	virtual ~LLOutputMonitorCtrl();
+
+	// llview overrides
+	virtual void	draw();
+
+	void			setPower(F32 val);
+	F32				getPower(F32 val) const { return mPower; }
+	
+	bool			getIsMuted() const { return mIsMuted; }
+	void			setIsMuted(bool val) { mIsMuted = val; }
+
+private:
+	static LLColor4	sColorMuted;
+	static LLColor4	sColorNormal;
+	static LLColor4	sColorOverdriven;
+	static LLColor4	sColorBound;
+	static S32		sRectsNumber;
+	static F32		sRectWidthRatio;
+	static F32		sRectHeightRatio;
+	
+	F32				mPower;
+	bool			mIsMuted;
+};
+
+#endif