photosgallery/viewframework/visuallistmanager/inc/glxvideoiconmanager.h
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     1 /*
       
     2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). 
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:    Icon manager for visuals
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 
       
    21 /**
       
    22  * @internal reviewed 31/07/2007 by Rowland Cook
       
    23  */
       
    24 /**
       
    25  * @internal reviewed 04/07/2007 by M Byrne
       
    26  */
       
    27 
       
    28 #ifndef C_GLXVIDEOICONMANAGER_H
       
    29 #define C_GLXVIDEOICONMANAGER_H
       
    30 
       
    31 #include <e32base.h>
       
    32 
       
    33 #include "glxiconmanager.h"
       
    34 
       
    35 class CAlfVisual;
       
    36 class CAlfTexture;
       
    37 
       
    38 /**
       
    39  *  CGlxVideoIconManager
       
    40  * 
       
    41  *  Icon manager for visuals
       
    42  *  Handles adding video overlay if required.
       
    43  *  
       
    44  * @author Dave Holland
       
    45  */
       
    46 NONSHARABLE_CLASS ( CGlxVideoIconManager )  : public CGlxIconManager
       
    47 	{
       
    48 public:
       
    49     /**
       
    50       * Static constructor
       
    51       * @param aMediaList reference to media list
       
    52       * @param aVisualList reference to associated visual list
       
    53       * @return pointer to CGlxVideoIconManager instance
       
    54       */
       
    55 	IMPORT_C static CGlxVideoIconManager* NewL(MGlxMediaList& aMediaList,
       
    56 	                                            MGlxVisualList& aVisualList);
       
    57 
       
    58 	/**
       
    59 	  * Destructor
       
    60 	  */
       
    61 	~CGlxVideoIconManager();
       
    62 	
       
    63 private: // From MGlxMediaListObserver    
       
    64     /// See @ref MGlxMediaListObserver::HandleAttributesAvailableL
       
    65     void HandleAttributesAvailableL(TInt aItemIndex,     
       
    66         const RArray<TMPXAttribute>& aAttributes, MGlxMediaList* aList);
       
    67             	
       
    68 private: // from MGlxVisualListObserver
       
    69     void HandleFocusChangedL( TInt aFocusIndex, TReal32 aItemsPerSecond, 
       
    70                 MGlxVisualList* aList, NGlxListDefs::TFocusChangeType aType );
       
    71 
       
    72 	/** @see MGlxVisualListObserver::HandleVisualAddedL */
       
    73 	void HandleVisualAddedL( CAlfVisual* aVisual, TInt aIndex, MGlxVisualList* aList );
       
    74 
       
    75 	
       
    76 private:
       
    77     /**
       
    78       * Constructor
       
    79       * @param aMediaList reference to media list
       
    80       * @param aVisualList reference to associated visual list
       
    81       */
       
    82 	CGlxVideoIconManager(MGlxMediaList& aMediaList, 
       
    83 	                            MGlxVisualList& aVisualList);
       
    84 	                            
       
    85     /**
       
    86       * 2nd phase constructor
       
    87       */	                            
       
    88 	void ConstructL();
       
    89 	
       
    90 	/**
       
    91 	  * Check if thumbnail attribute is present for specifed vis.
       
    92 	  * If not add icon if present or add default icon
       
    93 	  * @param aIndex index of item in media list
       
    94 	  */ 
       
    95     void AddIconIfVideoL( TInt aIndex );   
       
    96     
       
    97     
       
    98 private:
       
    99     // Texture for large video overlay not owned
       
   100     CAlfTexture*    iLargeVideoIcon;
       
   101     
       
   102     // Texture for small video overlay not owned
       
   103     CAlfTexture*    iSmallVideoIcon;
       
   104     
       
   105     // focus index
       
   106     TInt iFocusIndex;
       
   107 	};
       
   108 	
       
   109 #endif // C_GLXVIDEOICONMANAGER_H