/*

* Copyright (c) 2010 Ixonos Plc.

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the "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:

* Ixonos Plc

*

* Description:  

*

*/

#ifndef __MIMAGEFILTER_H__

#define __MIMAGEFILTER_H__

#include <e32base.h>

class TBlock

{

public:

    TBlock() {};

    TBlock (const TRect & aRect) 

    {

        iRect = aRect;

        iWidth = aRect.iBr.iX - aRect.iTl.iX;

        iHeight = aRect.iBr.iY - aRect.iTl.iY;

        iDataLength = iWidth * iHeight;

        iData = new (ELeave) TUint32 [iDataLength];

        Mem::FillZ(iData, iDataLength * sizeof(TUint32));

    };

    ~TBlock() {delete[] iData;};

public:

    TRect       iRect;

    TInt        iWidth;

    TInt        iHeight;

    TInt        iDataLength;

    TUint32 *   iData;

protected:

};

class MImageFilter

	{

	public:

		virtual ~MImageFilter() {}

        virtual TRect Rect() = 0;

        virtual TReal Scale() = 0;

        virtual TSize ViewPortSize() = 0;

		virtual TBlock * GetBlockL ( const TRect & aRect ) = 0;

        virtual void SetParent( MImageFilter* aParent ) = 0;

		virtual void SetChild( MImageFilter* aChild ) = 0;

		virtual TInt CmdL( const TDesC16& aCmd ) = 0;

		virtual const char* Type() = 0;

		MImageFilter* iParent;

		MImageFilter* iChild;

	};

#endif