/*

* Copyright (c) 2007 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:  Active Palette Checkerboard Styler*

*/

/**

 * @file ActivePalette2CheckerboardStyler.h

 * Active Palette Checkerboard Styler

 */

#ifndef _ACTIVE_PALETTE_2_CHECKERBOARD_STYLER_H

#define _ACTIVE_PALETTE_2_CHECKERBOARD_STYLER_H

#include "ActivePalette2Styler.h"

/**

 * Renders the checkerboard drawing style 2D AP

 */

class CActivePalette2CheckerboardStyler : public CActivePalette2Styler

    {

public:    

    /**

     * 2-stage construction

     * @return The newly-created object

     */

    static CActivePalette2CheckerboardStyler* NewL();

    /**

     * Destructor

     */

    ~CActivePalette2CheckerboardStyler();

/// @name From CActivePalette2Styler

//@{

    void ConstructL();    

    virtual void DrawItem(TInt aScreenPos, CFbsBitmap* aIcon, CFbsBitmap* aMask, TInt aOffsetFrame, TInt aOffsetTotal);

    virtual void DrawGap(TInt aScreenPos, TInt aOffsetFrame, TInt aOffsetTotal);

    virtual void AnimItem(TInt aScreenPos, CFbsBitmap* aIcon, CFbsBitmap* aMask);

    virtual void DrawTopScrollArrowSection(TBool aShowArrow);

    virtual void DrawBottomScrollArrowSection(TBool aShowArrow);

//@}

    void LoadAndScaleCheckerboardL( CFbsBitmap* aTargetBitmap, const TDesC& aFileName, TInt32 aId, TInt32 aMaskId, TSize aSize );

private:

    /// The mask for the top section

	CFbsBitmap* iAPTopSectionMask;

/**

 * @name Alternate masks

 * A note about different masks: as the checkerboard pattern repeats over an even number of pixels,

 * and the difference in y-positions of two consecutive items is odd, two masks are required for some elements.

 * For example, to keep the pattern consistent, you should use ItemMaskA, GapMaskA, ItemMaskB, GapMaskB, BottomSectionMaskB

 */

//@{

    /// Item mask for even items. Owned

	CFbsBitmap* iAPItemMaskA;

    /// Item mask for odd items. Owned

	CFbsBitmap* iAPItemMaskB;

    /// Gap mask for even items. Owned

	CFbsBitmap* iAPGapMaskA;

    /// Gap mask for odd items. Owned

	CFbsBitmap* iAPGapMaskB;

	/// Bottom section mask for when the total number of items is odd. Owned

	CFbsBitmap* iAPBottomSectionMaskA;

	/// Bottom section mask for when the total number of items is even. Owned

	CFbsBitmap* iAPBottomSectionMaskB;

//@}	

    TBool iLineCheckerCounter;

    };

#endif // _ACTIVE_PALETTE_2_CHECKERBOARD_STYLER_H