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/*
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* Copyright (c) 2002 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: Image conversion class
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*
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*/
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#ifndef BTSU_IMAGE_CONVERTER_H
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#define BTSU_IMAGE_CONVERTER_H
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// INCLUDES
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#include <f32file.h>
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#include <badesca.h>
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// CONSTANTS
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// FORWARD DECLARATIONS
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class CImageDecoder;
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class CImageEncoder;
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class CFrameImageData;
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class CBitmapScaler;
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class CFbsBitmap;
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// CLASS DECLARATION
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/**
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* A class for executing simple image conversion tasks.
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*/
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NONSHARABLE_CLASS (CBTSUImageConverter) : public CActive
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{
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public: // Constructor and destructor
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/**
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* Two-phased constructor.
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* @param None.
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*/
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static CBTSUImageConverter* NewL();
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/**
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* Destructor.
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*/
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~CBTSUImageConverter();
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public: // New functions
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/**
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* Returns the pixel size of the given image.
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* @param aImageFile A file handle of image file.
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* @return The pixel size.
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*/
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TSize GetImageSizeL( RFile& aImageFile );
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/**
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* Create a thumbnail version of the source image.
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* @param aSourceFile A filehandle of sourcefile.
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* @param aDestFile Full path for the destination file.
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* @return None.
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*/
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void CreateThumbnailL( RFile& aSourceFile,
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const TDesC& aDestFile );
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/**
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* Finds a display name for the given mime type.
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* @param aMimeType Mime type
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* @return A pointer to the name.
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*/
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static HBufC* GetDisplayNameL( const TDesC8& aMimeType );
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private: // Functions from base classes
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/**
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* From CActive Get's called when a request is cancelled.
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* @return None.
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*/
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void DoCancel();
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/**
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* From CActive Get's called when a request is completed.
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* @return None.
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*/
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void RunL();
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private:
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/**
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* C++ default constructor.
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*/
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CBTSUImageConverter();
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/**
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* Symbian 2nd phase constructor.
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*/
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void ConstructL();
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/**
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* Decode image.
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* @param aSourceFile A filehandle of source file.
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* @return None
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*/
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void DecodeImageL( RFile& aSourceFile );
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/**
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* Encode image.
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* @param aDestFile Full path for the destination file.
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* @param aThumbnail ETrue enables thumbnail creation
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* @return None
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*/
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void EncodeImageL( const TDesC& aDestFile,
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const TBool& aThumbnail = EFalse );
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/**
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* Scale image.
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* @return None
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*/
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void ScaleImageL();
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/**
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* Reset internal state.
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* @return None.
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*/
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void Reset();
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private: // Data
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CImageDecoder* iDecoder;
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CImageEncoder* iEncoder;
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CBitmapScaler* iScaler;
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CFrameImageData* iFrameImageData;
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CFbsBitmap* iFrameBitmap;
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CFbsBitmap* iScaledBitmap;
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RFs iFileSession;
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CActiveSchedulerWait iWait;
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};
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#endif // BTSU_IMAGE_CONVERTER_H
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