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/*
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* Copyright (c) 2007-2008 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: The effect control for the slideshow
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*
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*/
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#ifndef __CSHWEFFECTCONTROL_H__
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#define __CSHWEFFECTCONTROL_H__
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// INCLUDES
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#include <e32std.h>
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#include <e32base.h>
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#include <mglxvisuallistobserver.h>
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#include <mglxvisuallist.h>
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#include <glxlayoutsplitter.h>
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#include <glxsetvaluelayout.h>
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#include "shwevent.h"
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#include "shweventobserver.h"
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#include "shweventpublisherbase.h"
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#include "shwthumbnailloader.h"
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// FORWARD DECLARATIONS
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class MShwEffectManager;
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class MGlxVisualList;
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class MGlxMediaList;
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class MShwEffect;
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class CAlfVisual;
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class CShwTimer;
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// CLASS DECLARATION
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/**
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* CShwEffectControl
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*
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* @lib shwslideshowengine.lib
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* @internal reviewed 07/06/2007 by Loughlin
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*/
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NONSHARABLE_CLASS( CShwEffectControl )
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: public CShwEventPublisherBase,
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public MShwEventObserver,
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public MGlxVisualListObserver,
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public MShwThumbnailLoadObserver
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{
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private:
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/// effect control state
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enum TShwEffectState
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{
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EShwEffectStateInView = 1,
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EShwEffectStateInTransition
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};
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public: // Constructors and destructor
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/**
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* Constructor.
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* @param aEffectManager the owner and manager of the effects
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* @param aVisualList the visual list where to apply the effects
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* @param aMediaList the media list which is used for item loading
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* @param aScreenSize the screen size for the default layout
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*/
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static CShwEffectControl* NewL(
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MShwEffectManager& aEffectManager,
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MGlxVisualList& aVisualList,
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MGlxMediaList& aMediaList,
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TSize aScreenSize );
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/**
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* Destructor.
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*/
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~CShwEffectControl();
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private:
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/**
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* Constructor
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* See NewL for parameters
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*/
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CShwEffectControl(
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MShwEffectManager& aEffectManager,
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MGlxVisualList& aVisualList,
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MGlxMediaList& aMediaList,
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TSize aScreenSize );
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/**
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* 2nd stage constructor
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*/
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void ConstructL();
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public: // Callback API, dont use directly
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/**
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* This method is called when the transition is complete
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* @param aEffectControl, pointer to this object
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*/
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TInt SendTransitionReadyL();
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public: // From MShwEventObserver
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/// @ref MShwEventObserver::NotifyL
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void NotifyL( MShwEvent* aEvent );
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public: // from MGlxVisualListObserver
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/// @ref MGlxVisualListObserver::HandleFocusChangedL
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void HandleFocusChangedL(
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TInt aFocusIndex, TReal32 aItemsPerSecond,
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MGlxVisualList* aList, NGlxListDefs::TFocusChangeType aType );
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/// @ref MGlxVisualListObserver::HandleSizeChanged
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void HandleSizeChanged(
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const TSize& aSize, MGlxVisualList* aList );
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/// @ref MGlxVisualListObserver::HandleVisualRemoved
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void HandleVisualRemoved(
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const CAlfVisual* aVisual, MGlxVisualList* aList );
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/// @ref MGlxVisualListObserver::HandleVisualAddedL
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void HandleVisualAddedL(
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CAlfVisual* aVisual, TInt aIndex, MGlxVisualList* aList );
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private: // from MShwThumbnailLoadObserver
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/// @ref MShwThumbnailLoadObserver::HandleThumbnailLoadedL
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void HandleThumbnailLoadedL( TInt aIndex );
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/// @ref MShwThumbnailLoadObserver::HandleThumbnailLoadFailureL
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void HandleThumbnailLoadFailureL( TInt aIndex );
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/// @ref MShwThumbnailLoadObserver::HandleMediaListEmpty
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void HandleMediaListEmpty();
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private: // Implementation
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/**
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* Prepare view for given effect for focus index
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* and load the thumbnail in correct size
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* @param aEffect the effect
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*/
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void PrepareAndLoadImageToViewL();
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/**
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* StartView event handler
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* @param the start view event
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*/
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void HandleStartViewEventL( TShwEventStartView& aEvent );
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/**
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* StartTransition event handler
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* @param the start transition event
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*/
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void HandleStartTransitionEventL( TShwEventStartTransition& aEvent );
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/**
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* Pause event handler
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*/
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void HandlePauseEventL();
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/**
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* Resume event handler
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*/
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void HandleResumeEventL();
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/**
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* Next item event handler
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*/
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void HandleNextImageEventL();
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/**
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* Previous item event handler
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*/
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void HandlePreviousImageEventL();
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/**
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* Toogle Control Ui event handler
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*/
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void HandleToggleControlUiEventL();
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/**
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* Navigates the list and effects to given direction
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* @param the direction
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*/
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void NavigateListL( TInt aDirection );
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/**
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* Returns the next index to the left or right
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* @param the direction
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* @return the next index in the visual list
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*/
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TInt NextListIndex( TInt aDirection );
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private: // Implementation
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/// Ref: the effect manager
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MShwEffectManager& iEffectManager;
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/// Ref: the visual list
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MGlxVisualList& iVisualList;
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/// Ref: the media list
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MGlxMediaList& iMediaList;
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/// Own: the timer
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CShwTimer* iTransitionTimer;
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/// Own: the layout splitter
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TGlxLayoutSplitter iSplitter;
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/// Own: the default size layout
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TGlxSetValueLayout iDefaultIconLayout;
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/// Own: the default opacity layout
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TGlxSetValueLayout iPausedLayout;
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/// Own: the default layout when a visual is not visible
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TGlxSetValueLayout iNotVisibleLayout;
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/// Own: state flag to know if loop is started
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TBool iEffectLoopRestarted;
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/// Own: the context id
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TGlxViewContextId iContextId;
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/// Own: the thumbnail loader
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CShwThumbnailLoader* iThumbnailLoader;
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/// Ref: the previous effect (fading out)
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MShwEffect* iPreviousEffect;
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/// Ref: the current visual (shown in view)
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CAlfVisual* iCurrentVisual;
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/// Ref: the previous visual (fading out)
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CAlfVisual* iPreviousVisual;
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/// Own: current state
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TShwEffectState iState;
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/// Own: current view duration
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TInt iViewDuration;
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/// Own: flag to tell if user navigated during pause
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TBool iUserNavigated;
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RPointerArray<CAlfVisual> iPausedVisuals;
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TInt iFailedThumbnailIndex;
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/// Own: Flag to tell if HDMI decoding is completed
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TBool iHDMIFirstDecoded;
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/// Own: Flag to tell if TN ready received
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TBool iTNReadyReceived;
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};
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#endif // __CSHWEFFECTCONTROL_H__
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