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diff --git a/indra/newview/llchatitemscontainerctrl.h b/indra/newview/llchatitemscontainerctrl.h
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+/** 
+ * @file llchatitemscontainer.h
+ * @brief chat history scrolling panel implementation
+ *
+ * $LicenseInfo:firstyear=2004&license=viewergpl$
+ * 
+ * Copyright (c) 2004-2009, 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_LLCHATITEMSCONTAINER_H_
+#define LL_LLCHATITEMSCONTAINER_H_
+
+#include "llpanel.h"
+#include "llscrollbar.h"
+#include "string"
+#include "llchat.h"
+
+typedef enum e_show_item_header
+{
+	CHATITEMHEADER_SHOW_ONLY_NAME = 0,
+	CHATITEMHEADER_SHOW_ONLY_ICON = 1,
+	CHATITEMHEADER_SHOW_BOTH
+} EShowItemHeader;
+
+class LLChatItemCtrl: public LLPanel
+{
+protected:
+	LLChatItemCtrl(){};
+public:
+	
+
+	~LLChatItemCtrl(){}
+	
+	static LLChatItemCtrl* createInstance();
+
+	void	draw();
+
+	const LLChat& getMessage() const { return mOriginalMessage;}
+	
+	void	addText		(const std::string& message);
+	void	setMessage	(const LLChat& msg);
+	void	setWidth		(S32 width);
+	void	snapToMessageHeight	();
+
+	bool	canAddText	();
+
+	void	onMouseLeave	(S32 x, S32 y, MASK mask);
+	void	onMouseEnter	(S32 x, S32 y, MASK mask);
+	BOOL	handleMouseDown	(S32 x, S32 y, MASK mask);
+
+	virtual BOOL postBuild();
+
+	void	reshape		(S32 width, S32 height, BOOL called_from_parent = TRUE);
+
+	void	setHeaderVisibility(EShowItemHeader e);
+	BOOL	handleRightMouseDown(S32 x, S32 y, MASK mask);
+private:
+	
+	std::string appendTime	();
+
+private:
+	LLChat mOriginalMessage;
+
+	std::vector<std::string> mMessages;
+};
+
+class LLChatItemsContainerCtrl: public LLPanel
+{
+public:
+	struct Params 
+	:	public LLInitParam::Block<Params, LLPanel::Params>
+	{
+		Params(){};
+	};
+
+	LLChatItemsContainerCtrl(const Params& params);
+
+
+	~LLChatItemsContainerCtrl(){}
+
+	void	addMessage	(const LLChat& msg);
+
+	void	draw();
+
+	void	reshape					(S32 width, S32 height, BOOL called_from_parent = TRUE);
+
+	void	onScrollPosChangeCallback(S32, LLScrollbar*);
+
+	virtual BOOL postBuild();
+
+	BOOL	handleMouseDown	(S32 x, S32 y, MASK mask);
+	BOOL	handleKeyHere	(KEY key, MASK mask);
+	BOOL	handleScrollWheel( S32 x, S32 y, S32 clicks );
+
+	void	scrollToBottom	();
+
+	void	setHeaderVisibility(EShowItemHeader e);
+	EShowItemHeader	getHeaderVisibility() const { return mEShowItemHeader;};
+
+
+private:
+	void	reformatHistoryScrollItems(S32 width);
+	void	arrange					(S32 width, S32 height);
+
+	S32		calcRecuiredHeight		();
+	S32		getRecuiredHeight		() const { return mInnerRect.getHeight(); }
+
+	void	updateLayout			(S32 width, S32 height);
+
+	void	show_hide_scrollbar		(S32 width, S32 height);
+
+	void	showScrollbar			(S32 width, S32 height);
+	void	hideScrollbar			(S32 width, S32 height);
+
+	void	panelSetLeftTopAndSize	(LLView* panel, S32 left, S32 top, S32 width, S32 height);
+	void	panelShiftVertical		(LLView* panel,S32 delta);
+	void	shiftPanels				(S32 delta);
+
+private:
+	std::vector<LLChatItemCtrl*> mItems;
+
+	EShowItemHeader mEShowItemHeader;
+
+	LLRect			mInnerRect;
+	LLScrollbar*	mScrollbar;
+
+};
+
+#endif
+
+