1 /*

     2 * Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "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 *

    14 * Description:  Image decoding and scaling utility class.

    15 *

    16 */

    17 

    18 

    19 #ifndef AKNSSRVWALLPAPERSCALING_H

    20 #define AKNSSRVWALLPAPERSCALING_H

    21 

    22 #include <imageconversion.h>

    23 #include <bitmaptransforms.h>

    24 #include <SVGRequestObserver.h>

    25 

    26 class CSvgEngineInterfaceImpl;

    27 class MSvgError;

    28 

    29 /*

    30 * SVG Image decoder.

    31 */

    32 NONSHARABLE_CLASS(CAknsSrvSVGImageDecoder) : public CBase, public MSvgRequestObserver

    33     {

    34     public:

    35         static CAknsSrvSVGImageDecoder* NewL();

    36         ~CAknsSrvSVGImageDecoder();

    37         void DecodeImageL( const TDesC& aFilename,

    38             const TSize& aTargetSize,

    39             CFbsBitmap*& aBitmap,

    40             CFbsBitmap*& aMask );

    41         void LeaveIfErrorL( MSvgError* aError );

    42     protected:

    43         CAknsSrvSVGImageDecoder();

    44         void ConstructL();

    45     private:

    46         void UpdateScreen();

    47         TBool ScriptCall( const TDesC& aScript,CSvgElementImpl* aCallerElement );

    48         TInt FetchImage( const TDesC& aUri, RFs& aSession, RFile& aFileHandle );

    49         void GetSmilFitValue( TDes& aSmilValue );

    50         void UpdatePresentation( const TInt32&  aNoOfAnimation );

    51         TInt FetchFont( const TDesC& aUri, RFs& aSession, RFile& aFileHandle );

    52     private:

    53         CFbsBitmap* iBitmap;

    54         CFbsBitmap* iMask;

    55         CFbsBitmap* iDummyBitmap;

    56         CSvgEngineInterfaceImpl* iSvgEngine;

    57     };

    58 

    59 /*

    60 * Non-SVG Image decoder.

    61 */

    62 NONSHARABLE_CLASS(CAknsSrvImageConverter) : public CActive

    63     {

    64     public:

    65         static CAknsSrvImageConverter* NewL();

    66         ~CAknsSrvImageConverter();

    67 

    68         static void DecodeImageL(

    69             RFs& aRFs,

    70             const TDesC& aFilename,

    71             const TSize& aTargetSize,

    72             CFbsBitmap*& aBitmap,

    73             CFbsBitmap*& aMask,

    74             const TSize& aMaxSize );

    75 

    76         void ScaleAndCropImageL(

    77             CFbsBitmap*& aBitmap,

    78             const TSize& aTargetSize );

    79         void DoCancel();

    80         void RunL();

    81 

    82     protected:

    83         CAknsSrvImageConverter();

    84         void ConstructL();

    85     private:

    86         void BeginWait();

    87         void EndWait();

    88 

    89     private:

    90         CBitmapScaler* iBitmapScaler;

    91         TInt iConversionError;

    92         CActiveSchedulerWait iWait;

    93         TBool iWaitActive;

    94     };

    95 

    96 #endif

    97