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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description :
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*
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*/
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#ifndef ACTIVITYGRAPHICFILESSCALING_H
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#define ACTIVITYGRAPHICFILESSCALING_H
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#ifndef __E32SVR_H__
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#define __E32SVR_H__
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#endif
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#ifndef SYMBIAN_ENABLE_PUBLIC_PLATFORM_HEADER_SPLIT
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#define SYMBIAN_ENABLE_PUBLIC_PLATFORM_HEADER_SPLIT
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#endif
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#include <bitmaptransforms.h>
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class CImageDecoder;
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class CFbsBitmap;
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class MImageReadyCallBack
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{
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public:
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virtual void ImageReadyCallBack(TInt error, const CFbsBitmap *bitmap ) = 0;
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};
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class CGraphicsSalingHandler : public CActive
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{
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public:
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enum TCurrentOperation{
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ENone = 0,
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EConvertBitmapFromFile = 1,
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EScale = 2
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};
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enum TKindOfScaling
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{
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EIgnoreAspectRatio = 0,
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EKeepAspectRatio = 1,
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EKeepAspectRatioByExpanding = 2,
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};
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~CGraphicsSalingHandler();
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static CGraphicsSalingHandler* NewL(MImageReadyCallBack &aNotify, RFs &aFs, const TDesC &aFileName, const TDesC8& aMimeType, const TSize &aNewSize, TKindOfScaling aKindOfScaling);
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static CGraphicsSalingHandler* NewLC(MImageReadyCallBack &aNotify, RFs &aFs, const TDesC &aFileName, const TDesC8& aMimeType, const TSize &aNewSize, TKindOfScaling aKindOfScaling);
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protected:
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void DoCancel();
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void RunL();
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TInt RunError(TInt);
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private:
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void ConstructL(RFs &aFs, const TDesC &aFileName, const TDesC8& aMimeType);
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CGraphicsSalingHandler(MImageReadyCallBack &aNotify, const TSize &aNewSize, TKindOfScaling aKindOfScaling);
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TSize Scaling();
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private:
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MImageReadyCallBack &mNotify;
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CImageDecoder *mImageDecoder;
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CFbsBitmap *mBitmapFromFile;
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CFbsBitmap *mBitmapOutput;
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CBitmapScaler *mBitmapScaler;
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TSize mNewSize;
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TBool mKindOfScaling;
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TCurrentOperation mCurrentOperation;
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};
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#endif // ACTIVITYGRAPHICFILESSCALING_H
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