1 /*

     2 * Copyright (c) 2010 Ixonos Plc.

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - Initial contribution

    11 *

    12 * Contributors:

    13 * Ixonos Plc

    14 *

    15 * Description:  

    16 *

    17 */

    18 

    19 

    20 #ifndef __MIMAGEFILTER_H__

    21 #define __MIMAGEFILTER_H__

    22 

    23 #include <e32base.h>

    24 

    25 class TBlock

    26 {

    27 public:

    28 

    29     TBlock() {};

    30 

    31     TBlock (const TRect & aRect) 

    32     {

    33         iRect = aRect;

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

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

    36         iDataLength = iWidth * iHeight;

    37         iData = new (ELeave) TUint32 [iDataLength];

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

    39     };

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

    41 public:

    42     TRect       iRect;

    43     TInt        iWidth;

    44     TInt        iHeight;

    45     TInt        iDataLength;

    46     TUint32 *   iData;

    47 

    48 protected:

    49 

    50 };

    51 

    52 class MImageFilter

    53 	{

    54 	public:

    55 		virtual ~MImageFilter() {}

    56         virtual TRect Rect() = 0;

    57         virtual TReal Scale() = 0;

    58         virtual TSize ViewPortSize() = 0;

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

    60         virtual void SetParent( MImageFilter* aParent ) = 0;

    61 		virtual void SetChild( MImageFilter* aChild ) = 0;

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

    63 		virtual const char* Type() = 0;

    64 		MImageFilter* iParent;

    65 		MImageFilter* iChild;

    66 	};

    67 

    68 #endif