/** 
 * @file lltoolselectland.h
 * @brief LLToolSelectLand class header file
 *
 * $LicenseInfo:firstyear=2002&license=viewerlgpl$
 * 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 LL_LLTOOLSELECTLAND_H
#define LL_LLTOOLSELECTLAND_H

#include "lltool.h"
#include "v3dmath.h"

class LLParcelSelection;

class LLToolSelectLand
:	public LLTool, public LLSingleton<LLToolSelectLand>
{
	LLSINGLETON(LLToolSelectLand);
	virtual ~LLToolSelectLand();

public:
	/*virtual*/ bool		handleMouseDown(S32 x, S32 y, MASK mask);
	/*virtual*/ bool		handleDoubleClick(S32 x, S32 y, MASK mask);
	/*virtual*/ bool		handleMouseUp(S32 x, S32 y, MASK mask);
	/*virtual*/ bool		handleHover(S32 x, S32 y, MASK mask);
	/*virtual*/ void		render();				// draw the select rectangle
	/*virtual*/ BOOL		isAlwaysRendered()		{ return TRUE; }

	/*virtual*/ void		handleSelect();
	/*virtual*/ void		handleDeselect();

protected:
	BOOL			outsideSlop(S32 x, S32 y, S32 start_x, S32 start_y);
	void			roundXY(LLVector3d& vec);

protected:
	LLVector3d		mDragStartGlobal;		// global coords
	LLVector3d		mDragEndGlobal;			// global coords
	BOOL			mDragEndValid;			// is drag end a valid point in the world?

	S32				mDragStartX;			// screen coords, from left
	S32				mDragStartY;			// screen coords, from bottom

	S32				mDragEndX;
	S32				mDragEndY;

	BOOL			mMouseOutsideSlop;		// has mouse ever gone outside slop region?

	LLVector3d		mWestSouthBottom;		// global coords, from drag
	LLVector3d		mEastNorthTop;			// global coords, from drag

	LLSafeHandle<LLParcelSelection> mSelection;		// hold on to a parcel selection
};


#endif