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diff --git a/indra/llui/lltooltip.h b/indra/llui/lltooltip.h
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+/** 
+ * @file lltooltip.h
+ * @brief LLToolTipMgr class definition and related classes
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * 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_LLTOOLTIP_H
+#define LL_LLTOOLTIP_H
+
+// Library includes
+#include "llsingleton.h"
+#include "llinitparam.h"
+#include "llview.h"
+
+//
+// Classes
+//
+class LLToolTipView : public LLView
+{
+public:
+	struct Params : public LLInitParam::Block<Params, LLView::Params>
+	{
+		Params()
+		{
+			mouse_opaque = false;
+		}
+	};
+	LLToolTipView(const LLToolTipView::Params&);
+	/*virtual*/ BOOL handleHover(S32 x, S32 y, MASK mask);
+	/*virtual*/ BOOL handleMouseDown(S32 x, S32 y, MASK mask);
+	/*virtual*/ BOOL handleMiddleMouseDown(S32 x, S32 y, MASK mask);
+	/*virtual*/ BOOL handleRightMouseDown(S32 x, S32 y, MASK mask);
+	/*virtual*/ BOOL handleScrollWheel( S32 x, S32 y, S32 clicks );
+
+	/*virtual*/ void onMouseLeave(S32 x, S32 y, MASK mask);
+
+	void drawStickyRect();
+
+	/*virtual*/ void draw();
+};
+
+struct LLToolTipPosParams : public LLInitParam::Block<LLToolTipPosParams>
+{
+	Mandatory<S32>		x, 
+						y;
+	LLToolTipPosParams()
+	:	x("x"),
+		y("y")
+	{}
+};
+
+struct LLToolTipParams : public LLInitParam::Block<LLToolTipParams>
+{
+	typedef boost::function<void(void)> click_callback_t;
+
+	Mandatory<std::string>		message;
+	
+	Optional<LLToolTipPosParams>	pos;
+	Optional<F32>					delay_time,
+									visible_time;
+	Optional<LLRect>				sticky_rect;
+	Optional<S32>					width;
+	Optional<LLUIImage*>			image;
+
+	Optional<click_callback_t>		click_callback;
+
+	LLToolTipParams();
+	LLToolTipParams(const std::string& message);
+};
+
+class LLToolTipMgr : public LLSingleton<LLToolTipMgr>
+{
+	LOG_CLASS(LLToolTipMgr);
+public:
+	LLToolTipMgr();
+	void show(const LLToolTipParams& params);
+	void show(const std::string& message);
+
+	void enableToolTips();
+	void hideToolTips();
+	bool toolTipVisible();
+	LLRect getToolTipRect();
+
+	LLRect getStickyRect();
+
+private:
+	class LLToolTip* createToolTip(const LLToolTipParams& params);
+
+	bool				mToolTipsBlocked;
+	class LLToolTip*	mToolTip;
+	std::string			mLastToolTipMessage;
+	LLRect				mToolTipStickyRect;
+};
+
+//
+// Globals
+//
+
+extern LLToolTipView *gToolTipView;
+
+#endif