/*

* 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:  Used to get basic manipulations to the bitmaps.

*

*/

//  INCLUDE FILES

#include <e32std.h>

#include "TMIDTransformer.h"

void TMIDTransformer::Transform(TRect& aDrawRect, TInt aTransform)

{

    iSize = aDrawRect.Size();

    iTransform = aTransform;

    TInt rotates(aTransform & KRotates);

    if (rotates == KRotate90 || rotates == KRotate270)

    {

        aDrawRect.SetSize(TSize(aDrawRect.Height(), aDrawRect.Width()));

    }

}

TInt TMIDTransformer::Transform(const TPoint& aMovement)

{

    TInt error(KErrNone);

    TInt hFlip(1);

    TInt vFlip(1);

    TInt flip(iTransform & KFlips);

    if ((flip & KFlipVertical) != 0)

    {

        vFlip = -1;

    }

    if ((flip & KFlipHorizontal) != 0)

    {

        hFlip = -1;

    }

    TInt rotates(iTransform & KRotates);

    switch (rotates)

    {

    case KRotate90:

    {

        iXMove.SetXY(0, 1 * hFlip);

        iYMove.SetXY(-1 * vFlip, 0);

        if (vFlip == -1)

        {

            iBitPosition.iX = aMovement.iY;

        }

        else

        {

            iBitPosition.iX = iSize.iWidth - aMovement.iY - 1;

        }

        if (hFlip == -1)

        {

            iBitPosition.iY = iSize.iHeight - aMovement.iX - 1;

        }

        else

        {

            iBitPosition.iY = aMovement.iX;

        }

        break;

    }

    case KRotate180:

    {

        iXMove.SetXY(-1 * hFlip, 0);

        iYMove.SetXY(0, -1 * vFlip);

        if (hFlip == -1)

        {

            iBitPosition.iX = aMovement.iX;

        }

        else

        {

            iBitPosition.iX = iSize.iWidth - aMovement.iX - 1;

        }

        if (vFlip == -1)

        {

            iBitPosition.iY = aMovement.iY;

        }

        else

        {

            iBitPosition.iY = iSize.iHeight - aMovement.iY - 1;

        }

        break;

    }

    case KRotate270:

    {

        iXMove.SetXY(0, -1 * hFlip);

        iYMove.SetXY(1 * vFlip, 0);

        if (vFlip == -1)

        {

            iBitPosition.iX = iSize.iWidth - aMovement.iY - 1;

        }

        else

        {

            iBitPosition.iX = aMovement.iY;

        }

        if (hFlip == -1)

        {

            iBitPosition.iY = aMovement.iX;

        }

        else

        {

            iBitPosition.iY = iSize.iHeight - aMovement.iX - 1;

        }

        break;

    }

    // No rotate, so rotate angle is 0

    case 0:

    {

        iXMove.SetXY(1 * hFlip, 0);

        iYMove.SetXY(0, 1 * vFlip);

        if (hFlip == -1)

        {

            iBitPosition.iX = iSize.iWidth - aMovement.iX - 1;

        }

        else

        {

            iBitPosition.iX = aMovement.iX;

        }

        if (vFlip == -1)

        {

            iBitPosition.iY = iSize.iHeight - aMovement.iY - 1;

        }

        else

        {

            iBitPosition.iY = aMovement.iY;

        }

        break;

    }

    default:

    {

        error = KErrGeneral;

        break;

    }

    }

    iPoint = iBitPosition;

    return error;

}