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/** 
 * @file llscrolllistitem.h
 * @brief Scroll lists are composed of rows (items), each of which 
 * contains columns (cells).
 *
 * $LicenseInfo:firstyear=2007&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#ifndef LLSCROLLLISTITEM_H
#define LLSCROLLLISTITEM_H

#include "llpointer.h"		// LLPointer<>
#include "llsd.h"
#include "v4color.h"
#include "llinitparam.h"
#include "llscrolllistcell.h"
#include "llcoord.h"

#include <vector>

class LLCheckBoxCtrl;
class LLResizeBar;
class LLScrollListCtrl;
class LLScrollColumnHeader;
class LLUIImage;

//---------------------------------------------------------------------------
// LLScrollListItem
//---------------------------------------------------------------------------
class LLScrollListItem
{
	friend class LLScrollListCtrl;
public:
	struct Params : public LLInitParam::Block<Params>
	{
		Optional<bool>		enabled;
		Optional<void*>		userdata;
		Optional<LLSD>		value;
		Optional<LLSD>		alt_value;
		
		Ignored				name; // use for localization tools
		Ignored				type; 
		Ignored				length; 

		Multiple<LLScrollListCell::Params> columns;

		Params()
		:	enabled("enabled", true),
			value("value"),
			alt_value("alt_value"),
			name("name"),
			type("type"),
			length("length"),
			columns("columns")
		{
			addSynonym(columns, "column");
			addSynonym(value, "id");
		}
	};

	virtual ~LLScrollListItem();

	void	setSelected( bool b );
	bool	getSelected() const				{ return mSelected; }

	void	setEnabled( bool b )			{ mEnabled = b; }
	bool	getEnabled() const 				{ return mEnabled; }

	void	setHighlighted( bool b );
	bool	getHighlighted() const			{ return mHighlighted; }

	void	setSelectedCell( S32 cell );
	S32		getSelectedCell() const			{ return mSelectedIndex; }

	void	setHoverCell( S32 cell );
	S32		getHoverCell() const			{ return mHoverIndex; }

	void	setUserdata( void* userdata )	{ mUserdata = userdata; }
	void*	getUserdata() const 			{ return mUserdata; }

	virtual LLUUID	getUUID() const			{ return mItemValue.asUUID(); }
	LLSD	getValue() const				{ return mItemValue; }
	LLSD	getAltValue() const				{ return mItemAltValue; }
	
	void	setRect(LLRect rect)			{ mRectangle = rect; }
	LLRect	getRect() const					{ return mRectangle; }

	void	addColumn( const LLScrollListCell::Params& p );

	void	setNumColumns(S32 columns);

	void	setColumn( S32 column, LLScrollListCell *cell );
	
	S32		getNumColumns() const;

	LLScrollListCell *getColumn(const S32 i) const;

	std::string getContentsCSV() const;

	virtual void draw(const LLRect& rect,
					  const LLColor4& fg_color,
					  const LLColor4& hover_color, // highlight/hover selection of whole item or cell
					  const LLColor4& select_color, // highlight/hover selection of whole item or cell
					  const LLColor4& highlight_color, // highlights contents of cells (ex: text)
					  S32 column_padding);

protected:
	LLScrollListItem( const Params& );

private:
	bool	mSelected;
    bool	mHighlighted;
    S32		mHoverIndex;
	S32		mSelectedIndex;
	bool	mEnabled;
	void*	mUserdata;
	LLSD	mItemValue;
	LLSD	mItemAltValue;
	std::vector<LLScrollListCell *> mColumns;
	LLRect  mRectangle;
};

#endif