author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 10:12:17 +0200 | |
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child 3 | 04ab22b956c2 |
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: |
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* Class which loads a thumbnail from a contact field. |
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* |
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*/ |
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#ifndef __CPbkThumbnailManager_H__ |
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#define __CPbkThumbnailManager_H__ |
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// INCLUDES |
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#include <e32base.h> |
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// CONSTANTS |
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/// Size of thumbnail images stored to Phonebook contacts |
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#define KPbkPersonalImageSize TSize(80,96) |
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// FORWARD DECLARATIONS |
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class CPbkContactEngine; |
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class MPbkThumbnailOperation; |
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class MPbkThumbnailGetObserver; |
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class CPbkContactItem; |
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class MPbkThumbnailGetImageObserver; |
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class MPbkThumbnailSetObserver; |
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class CFbsBitmap; |
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class CPAlbImageData; |
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class TPbkImageLoadParameters; |
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// CLASS DECLARATION |
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/** |
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* Phonebook thumbnail manager. Contains operations for attaching, removing and |
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* querying thumbnail images connected to Phonebook contacts. |
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* |
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* All the Set* operations convert the image to full color (24 bits/pixel) |
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* JPEG format and scale it to KPbkPersonalImageSize before connecting the |
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* image to a contact. Scaling does not change image's aspect ratio. |
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* If the original image is in JPEG format and its size is <=KPbkPersonalImageSize |
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* a copy of the original image is stored directly. |
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* |
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* @see MPbkThumbnailOperation |
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* @see MPbkThumbnailGetObserver |
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* @see MPbkThumbnailSetObserver |
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*/ |
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class CPbkThumbnailManager : public CBase |
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{ |
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public: // Interface |
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/** |
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* Creates and returns a new thumbnail manager. |
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* @param aEngine Phonebook contact engine |
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*/ |
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IMPORT_C static CPbkThumbnailManager* NewL(CPbkContactEngine& aEngine); |
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/** |
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* Destructor. |
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*/ |
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~CPbkThumbnailManager(); |
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/** |
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* Gets a thumbnail bitmap from a contact asynchronously. |
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* |
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* @param aObserver Observer for this operation. |
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* @param aContactItem Contact to retrieve the thumbnail from. |
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* @return a thumbnail operation object. Caller deletes the object |
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* when the operation is done or needs to be canceled. |
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*/ |
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IMPORT_C MPbkThumbnailOperation* GetThumbnailAsyncL( |
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MPbkThumbnailGetObserver& aObserver, |
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const CPbkContactItem& aContactItem); |
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/** |
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* Gets a parameterized thumbnail bitmap |
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* from a contact asynchronously. |
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* |
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* @param aObserver Observer for this operation. |
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* @param aContactItem Contact to retrieve the thumbnail from. |
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* @param aParams Parameters for bitmap, see TPbkImageLoadParameters. |
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* NOTE: iFrameNumber parameter has no meaning. |
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* |
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* @return a thumbnail operation object. Caller deletes the object |
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* when the operation is done or needs to be canceled. |
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* @see TPbkImageLoadParameters |
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*/ |
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IMPORT_C MPbkThumbnailOperation* GetThumbnailAsyncL( |
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MPbkThumbnailGetObserver& aObserver, |
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const CPbkContactItem& aContactItem, |
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TPbkImageLoadParameters& aParams); |
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/** |
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* Gets a thumbnail image from a contact asynchronously. |
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* |
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* @param aObserver Observer for this operation. |
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* @param aContactItem Contact to retrieve the thumbnail from. |
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* @return a thumbnail operation object. Caller deletes the object |
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* when the operation is done or needs to be canceled. |
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*/ |
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IMPORT_C MPbkThumbnailOperation* GetThumbnailImageAsyncL( |
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MPbkThumbnailGetImageObserver& aObserver, |
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const CPbkContactItem& aContactItem); |
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|
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/** |
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* Sets a thumbnail image for a contact asynchronously. |
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* |
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* @param aObserver Observer for this operation. |
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* @param aContactItem Contact to set the thumbnail to. |
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* @param aBitmap Bitmap to set as the thumbnail for aContact. |
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* @return a thumbnail operation object. Caller deletes the object |
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* when the operation is done or needs to be canceled. |
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*/ |
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IMPORT_C MPbkThumbnailOperation* SetThumbnailAsyncL( |
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MPbkThumbnailSetObserver& aObserver, |
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CPbkContactItem& aContactItem, |
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const CFbsBitmap& aBitmap); |
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|
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/** |
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* Sets a thumbnail image for a contact asynchronously. |
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* |
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* @param aObserver Observer for this operation. |
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* @param aContactItem Contact to set the thumbnail to. |
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* @param aImageBuffer Image buffer to set as the thumbnail for aContact. |
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* @return a thumbnail operation object. Caller deletes the object |
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* when the operation is done or needs to be canceled. |
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*/ |
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IMPORT_C MPbkThumbnailOperation* SetThumbnailAsyncL( |
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MPbkThumbnailSetObserver& aObserver, |
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CPbkContactItem& aContactItem, |
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const TDesC8& aImageBuffer); |
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|
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/** |
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* Sets a thumbnail image for a contact asynchronously. |
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* |
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* @param aObserver Observer for this operation. |
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* @param aContactItem Contact to set the thumbnail to. |
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* @param aFileName File name for a image to set as the thumbnail for aContact. |
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* @return a thumbnail operation object. Caller deletes the object |
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* when the operation is done or needs to be canceled. |
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*/ |
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IMPORT_C MPbkThumbnailOperation* SetThumbnailAsyncL( |
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MPbkThumbnailSetObserver& aObserver, |
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CPbkContactItem& aContactItem, |
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const TDesC& aFileName); |
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|
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/** |
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* Returns true if aContactItem has a thumbnail image attached to it. |
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* @param aContactItem Contact that is queried for thumbnail. |
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* @return ETrue if given contact has a thumbnail, EFalse otherwise. |
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*/ |
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IMPORT_C TBool HasThumbnail(const CPbkContactItem& aContactItem) const; |
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|
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/** |
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* Removes any thumbnail image from aContactItem. |
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* @param aContactItem Contact whose thumbnail is removed. |
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*/ |
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IMPORT_C void RemoveThumbnail(CPbkContactItem& aContactItem); |
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|
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private: // Implementation |
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CPbkThumbnailManager(CPbkContactEngine& aEngine); |
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void ConstructL(); |
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|
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private: // Data members |
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/// Ref: contact engine |
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CPbkContactEngine& iEngine; |
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}; |
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|
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|
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/** |
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* Abstract asynchronous thumbnail operation. The operation can be cancelled by |
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* deleting it. |
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* |
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* @see CPbkThumbnailManager |
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*/ |
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class MPbkThumbnailOperation |
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{ |
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public: // Interface |
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/** |
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* Destructor. Cancels this thumbnail operation and releases any |
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* resources held by it. |
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*/ |
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virtual ~MPbkThumbnailOperation() =0; |
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}; |
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|
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inline MPbkThumbnailOperation::~MPbkThumbnailOperation() |
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{ |
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} |
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#endif // __CPbkThumbnailManager_H__ |
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|
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// End of File |