phonebookui/Phonebook2/ccapplication/ccamycardplugin/inc/ccappmycardimageloader.h
author Pat Downey <patd@symbian.org>
Wed, 01 Sep 2010 12:29:52 +0100
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Revert incorrect RCL_3 drop: Revision: 201033 Kit: 201035
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/*
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* Copyright (c) 2009-2009 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:  Implementation of MyCard image loader
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*
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*/
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#ifndef CCAPPMYCARDIMAGELOADER_H
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#define CCAPPMYCARDIMAGELOADER_H
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#include <CCAppImageDecoding.h>
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class MVPbkStoreContact;
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class CCCAppImageDecoding;
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class CFbsBitmap;
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/**
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 * MyCard image loading observer class
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 */
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class MMyCardImageLoaderObserver
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{
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public:
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    /**
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     * Notification method to report loaded images to observer.
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     * 
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	 * @param aThumbnail loaded contact thumbnail. Ownership transferred to
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	 *        observer.
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     */
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    virtual void ThumbnailReady( CFbsBitmap* aThumbnail ) = 0;
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    /**
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     * Notification method to report failed load requests
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     * 
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     * @param aError Generic symbian error code
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     */
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    virtual void ThumbnailLoadError( TInt aError ) = 0;
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protected:
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    virtual ~MMyCardImageLoaderObserver() {}
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};
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/**
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 *  Contact image loader
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 *
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 *  @lib ccappmycardplugin.dll
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 *  @since S60 9.2
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 */
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NONSHARABLE_CLASS( CCCAppMyCardImageLoader ) : 
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    public CBase,
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    public MCCAppImageDecodingObserver
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{
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public:
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    /**
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     * Two-phased constructor.
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     */
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    static CCCAppMyCardImageLoader* NewL(
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        MMyCardImageLoaderObserver& aObserver );
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    /**
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     * Destructor.
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     */
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    ~CCCAppMyCardImageLoader();
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public: // Interface
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    /**
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     * Start loading contacts image. Will cancel any previous requests.
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     * Once loading is complete the new image is delivered to observer 
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     * with a call to MMyCardImageLoaderObserver::ThumbnailReady.
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     * 
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     * @param aContact source contact for the image
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     */
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    void LoadContactImageL( 
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            MVPbkStoreContact& aContact, 
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            const TSize& aThumbnailSize );
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    /**
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     * Start loading contacts image. Will cancel any previous requests.
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     * Once loading is complete the new image is delivered to observer 
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     * with a call to MMyCardImageLoaderObserver::ThumbnailReady.
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     * 
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     * @param aImageData source data for the image
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     * @param aImageFileName filename of the image
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     */
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    void LoadImageL( 
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        const TDesC8& aImageData,
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        const TDesC& aImageFileName,
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        const TSize& aThumbnailSize );
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    void ResizeImageL( const TSize& aThumbnailSize );
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private:    // From MCCAppImageDecodingObserver
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    void BitmapReadyL( CFbsBitmap* aBitmap );
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private: // constructors
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    /**
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     * Constructor
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     */
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    inline CCCAppMyCardImageLoader(
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        MMyCardImageLoaderObserver& aObserver );
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private: // data
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	/// Not own. Observer
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	MMyCardImageLoaderObserver& iObserver;
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	/// Own.
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	HBufC8* iImageBuffer;
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    /// Own.
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    HBufC* iImageFileName;
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    /// Own
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    CCCAppImageDecoding* iImageDecoding;
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};
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#endif // CCAPPMYCARDIMAGELOADER_H
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// End of File