author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 08:45:44 +0200 | |
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child 2 | 7d9067c6fcb1 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008-2009 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 : Class header for preview thumbnail in list view |
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* |
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*/ |
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#ifndef _GLXPREVIEWTHUMBNAILBINDING_H_ |
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#define _GLXPREVIEWTHUMBNAILBINDING_H_ |
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#include "glxbinding.h" // The binding is created by the binding set factory. |
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#include "glxmedialistiterator.h" // Interface for going through items in the list in a non-sequential order |
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#include "mglxmedialistobserver.h" // Observes for changes in media list |
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#include <memory> |
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class GlxThumbnailVariantType; |
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class CGlxThumbnailContext; // Fetch context to retrieve thumbnails |
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/** |
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* Observer interface |
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*/ |
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class MPreviewTNObserver |
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{ |
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public: |
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virtual void PreviewTNReadyL(CFbsBitmap* aBitmap, CFbsBitmap* aMask, TInt aIndex) = 0; |
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}; |
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// CLASS DECLARATION |
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/** |
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* Implementation of preview thumbnail binding for the |
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* list view. |
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* |
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*/ |
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NONSHARABLE_CLASS(CGlxPreviewThumbnailBinding) : public CBase, |
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public MGlxMediaListObserver |
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{ |
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public: |
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/** |
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* Two phase construction |
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* @param aMulTag Mul field that the binding corresponds to |
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*/ |
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static CGlxPreviewThumbnailBinding* NewL (MPreviewTNObserver& aObserver); |
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/** |
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* Two phase construction |
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*/ |
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static CGlxPreviewThumbnailBinding* NewLC(MPreviewTNObserver& aObserver ); // takes ownership |
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/** |
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* Destructor |
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*/ |
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~CGlxPreviewThumbnailBinding(); |
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/** |
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* HasFirstThumbnail |
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*/ |
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TBool HasFirstThumbnail( const RArray< TMPXAttribute >& aAttributes ); |
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private: |
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/** |
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* Constructor |
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*/ |
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CGlxPreviewThumbnailBinding(MPreviewTNObserver& aObserver); |
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/** |
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* Two phase construction |
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*/ |
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void ConstructL(); |
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public: |
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void HandleItemChangedL(const CMPXCollectionPath& aPath, TBool aPopulateListTNs); |
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void StartTimer(TBool aPopulateListTNs); |
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// From MGlxMediaListObserver |
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void HandleItemAddedL( TInt aStartIndex, TInt aEndIndex, MGlxMediaList* aList ); |
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void HandleItemRemovedL( TInt aStartIndex, TInt aEndIndex, MGlxMediaList* aList ); |
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void HandleAttributesAvailableL( TInt aItemIndex, |
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const RArray<TMPXAttribute>& aAttributes, MGlxMediaList* aList ); |
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void HandleFocusChangedL( NGlxListDefs::TFocusChangeType aType, |
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TInt aNewIndex, TInt aOldIndex, MGlxMediaList* aList ); |
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void HandleItemSelectedL(TInt aIndex, TBool aSelected, MGlxMediaList* aList ); |
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void HandleMessageL( const CMPXMessage& aMessage, MGlxMediaList* aList ); |
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void HandleError( TInt aError ); |
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void HandleCommandCompleteL( CMPXCommand* aCommandResult, TInt aError, |
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MGlxMediaList* aList ); |
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void HandleMediaL( TInt aListIndex, MGlxMediaList* aList ); |
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void HandleItemModifiedL( const RArray<TInt>& aItemIndexes, MGlxMediaList* aList ); |
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private: |
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/** |
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* IsTimeL |
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*/ |
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static TInt IsTimeL( TAny* aSelf ); |
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/** |
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* TimerTickedL |
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*/ |
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void TimerTickedL(); |
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private: |
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MPreviewTNObserver& iObserver; |
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// Timer that checks for the time expiration |
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CPeriodic* iTimer; |
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//Medialist that holds the thumbnail information |
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MGlxMediaList* iMediaList; |
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// Thumbnail context |
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CGlxThumbnailContext* iThumbnailContext; |
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// for thumbnail context |
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TGlxSequentialIterator iThumbnailIterator; |
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// Preview thumbnail index |
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TInt iProgressIndex; |
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// flag that says whether timer has expired |
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TBool iTimerTicked; |
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//flag will be true, when initially the first thumbnails for all the |
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//items in the list are populated. |
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TBool iPopulateListTNs; |
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//it holds the initial number of thumbnail to be displayed |
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RArray<TInt> iPreviewItemCount; |
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TSize iGridIconSize; |
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// Holds the numbers of trials count,after which PreviewTNReady callback |
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// has to be called |
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TInt iTrialCount; |
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TInt iTrial; |
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}; |
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#endif //_GLXPREVIEWTHUMBNAILBINDING_H_ |