/*

* Copyright (c) 2006 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:  1 bit format, 2 distinct color values, stored as a byte.

*

*/

#ifndef TMIDGRAY1_H

#define TMIDGRAY1_H

//  INCLUDES

#include "TMIDFormatConverter.h"

//  CONSTANTS

const TInt KPixelsInByteGray1 = 8;

const TInt KGray1Shift = 3;

//  CLASS DEFINITION

/**

 * 1 bit format, 2 distinct color values (on/off), stored as

 * a byte. 8 pixel values in a single byte, packed as close

 * as possible.

 */

NONSHARABLE_CLASS(TMIDGray1): public TMIDFormatConverter

{

public: //  initialization

    void InitializeL(const TMIDBitmapParameters& aParameters);

public: // from TMIDFormatConverter

    // Convert from internal to int

    TUint32 ConvertInternal(const TMIDInternalARGB& aInternal);

    // Convert from int to internal

    void Convert(TMIDInternalARGB& aResult, TUint32 aColor) const;

    // Get pixel from current position

    void GetPixel(TMIDInternalARGB& aResult) const;

    // Get alpha which is in same format as bitmap

    TUint8 GetAlpha() const;

    // Plot pixel to current position

    void PlotPixel(const TMIDInternalARGB& aInternal);

    // Plot pixel with alpha

    void PlotPixelWithAlpha(const TMIDInternalARGB& aInternal);

    // Set bitmap

    void SetBitmap(TUint32* aBitmap)

    {

        iBitmap = (TUint8*)aBitmap;

    }

    // Get bitmap

    TUint32* Bitmap()

    {

        return (TUint32*)iBitmap;

    }

protected: // from TMIDFormatConverter

    // checks how many pixels is occupied and is last pixel in that limit

    TBool CheckSize(TInt aPixelSize, TInt aLastDrawnPixelOffset);

private:

    TUint8* iBitmap;

};

#endif // TMIDGRAY1_H