/*

* Copyright (c) 2006-2007 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:  Image decoding and scaling utility class.

*

*/

#ifndef AKNSSRVWALLPAPERSCALING_H

#define AKNSSRVWALLPAPERSCALING_H

#include <imageconversion.h>

#include <bitmaptransforms.h>

#include <SVGRequestObserver.h>

class CSvgEngineInterfaceImpl;

class MSvgError;

/*

* SVG Image decoder.

*/

NONSHARABLE_CLASS(CAknsSrvSVGImageDecoder) : public CBase, public MSvgRequestObserver

    {

    public:

        static CAknsSrvSVGImageDecoder* NewL();

        ~CAknsSrvSVGImageDecoder();

        void DecodeImageL( const TDesC& aFilename,

            const TSize& aTargetSize,

            CFbsBitmap*& aBitmap,

            CFbsBitmap*& aMask );

        void LeaveIfErrorL( MSvgError* aError );

    protected:

        CAknsSrvSVGImageDecoder();

        void ConstructL();

    private:

        void UpdateScreen();

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

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

        void GetSmilFitValue( TDes& aSmilValue );

        void UpdatePresentation( const TInt32&  aNoOfAnimation );

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

    private:

        CFbsBitmap* iBitmap;

        CFbsBitmap* iMask;

        CFbsBitmap* iDummyBitmap;

        CSvgEngineInterfaceImpl* iSvgEngine;

    };

/*

* Non-SVG Image decoder.

*/

NONSHARABLE_CLASS(CAknsSrvImageConverter) : public CActive

    {

    public:

        static CAknsSrvImageConverter* NewL();

        ~CAknsSrvImageConverter();

        static void DecodeImageL(

            RFs& aRFs,

            const TDesC& aFilename,

            const TSize& aTargetSize,

            CFbsBitmap*& aBitmap,

            CFbsBitmap*& aMask,

            const TSize& aMaxSize );

        void ScaleAndCropImageL(

            CFbsBitmap*& aBitmap,

            const TSize& aTargetSize );

        void DoCancel();

        void RunL();

    protected:

        CAknsSrvImageConverter();

        void ConstructL();

    private:

        void BeginWait();

        void EndWait();

    private:

        CBitmapScaler* iBitmapScaler;

        TInt iConversionError;

        CActiveSchedulerWait iWait;

        TBool iWaitActive;

    };

#endif