/*

* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:   Definition of THuiLayoutPrivateData.

*

*/

#ifndef HUILAYOUTDATA_H_

#define HUILAYOUTDATA_H_

// Private structure

//

/**

 * TScrollState contains information about the scrolling state of the

 * layout. This is only used when scrolling is enabled. Most layouts

 * don't use this.

 */

class TScrollState

    {

public:

    TScrollState() : iOffset(), iVirtualSize(0, 0) {}

    THuiTimedPoint iOffset;

    /** Size of the layout considering the placement of children and outer

        borders. This may be larger than the size of the layout on the

        screen. Used when scrolling. */

    TSize iVirtualSize;

    };

struct CHuiLayout::THuiLayoutPrivateData

    {

public:

    THuiLayoutPrivateData() : 

        iInnerPadding(0, 0),

            iScroll(NULL),

            iTransitionTime(0),

            iBaseUnit(THuiMetric(), THuiMetric()) // defaults to [1px, 1px]

    {    

        }

public:

    /** Visuals that are children of the layout. None of these is owned by

        by the layout. */

    RPointerArray<CHuiVisual> iChildren;

    /** Inner horizontal padding. */

    //TInt16 iXPadding;

    /** Inner vertical padding. */

    //TInt16 iYPadding;

    /** Inner paddings (horizontal and vertical). */

    THuiXYMetric iInnerPadding;

    /** State of scrolling. */

    TScrollState* iScroll;

    /** Used to store the local transition time */

    TInt iTransitionTime;

    /** Metric for the layout's base measurement unit. The positions and sizes

        of the children of this layout are interpreted as multiples of this

        base unit. */

    THuiXYMetric iBaseUnit;

    CHuiCanvasGc *iGc;

    };

#endif /* HUILAYOUTDATA_H_ */