author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 11 Jun 2010 13:48:51 +0300 | |
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permissions | -rw-r--r-- |
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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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/** |
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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 |