ui/uiengine/medialists/src/glxcache.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 18 Aug 2010 09:48:53 +0300
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permissions -rw-r--r--
Revision: 201031 Kit: 201033
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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:    Cache implementation for media items sharing the same Id space
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*
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*/
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#include "glxcache.h"
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#include <glxassert.h>
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#include <mpxmediadrmdefs.h>			// for DRM attributes
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#include <mpxmediacontainerdefs.h>
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#include <mpxmediacollectiondetaildefs.h>
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#include <glxthumbnailattributeinfo.h>
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#include <glxtracer.h>
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#include <lbsposition.h>				//for TCoordinate
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#include "glxcachemanager.h"
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#include "glxmedialist.h"
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// -----------------------------------------------------------------------------
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// Constructor
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// -----------------------------------------------------------------------------
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//
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CGlxCache::CGlxCache( const TGlxIdSpaceId& aIdSpaceId, CGlxCacheManager* aCacheManager )
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        : iIdSpaceId( aIdSpaceId ), iCacheManager(aCacheManager)
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    {
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    TRACER("CGlxCache::CGlxCache");
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    }
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// -----------------------------------------------------------------------------
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// Destructor
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// -----------------------------------------------------------------------------
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//
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CGlxCache::~CGlxCache()
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    {
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    TRACER("CGlxCache::Destructor");
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    iItemPool.ResetAndDestroy();
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    }
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// -----------------------------------------------------------------------------
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// IdSpaceId
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// -----------------------------------------------------------------------------
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//
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TGlxIdSpaceId CGlxCache::IdSpaceId() const
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    {
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    TRACER("CGlxCache::IdSpaceId");
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    return iIdSpaceId;
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    }
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// -----------------------------------------------------------------------------
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// return a media object or null
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// -----------------------------------------------------------------------------
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//
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CGlxMedia* CGlxCache::Media( const TGlxMediaId& aId ) const
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	{
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	TRACER("CGlxCache::Media");
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    TInt index = iItemPool.FindInOrder(aId, (&MediaItemOrderByKey));
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    if ( KErrNotFound != index )
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        {
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        return iItemPool[index];
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        }
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    return NULL;
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    }
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// -----------------------------------------------------------------------------
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// FindItemForceCreateL
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// -----------------------------------------------------------------------------
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//
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CGlxMedia* CGlxCache::FindItemForceCreateL( const TGlxMediaId& aId )
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    {
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    TRACER("CGlxCache::FindItemForceCreateL");
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    CGlxMedia* media = Media( aId );
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    if ( !media )
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        {
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        media = CreateItemL( aId );
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        }
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    return media;	
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    }
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// -----------------------------------------------------------------------------
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// CreateItemL
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// -----------------------------------------------------------------------------
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//
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CGlxMedia* CGlxCache::CreateItemL(const TGlxMediaId& aId)
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    {
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    TRACER("CGlxCache::CreateItemL");
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    CGlxMedia* item = NULL;
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    iItemPool.ReserveL( iItemPool.Count() + 1 );
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    item = new (ELeave) CGlxMedia(aId);
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    TLinearOrder<CGlxMedia> orderer (&MediaItemOrderById);
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    iItemPool.InsertInOrder(item, orderer);
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	// Safe to fail, since if the media objects is not used by any lists,
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	// garbage collection will simply delete it
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	RPointerArray<CGlxMediaList>& mediaLists = CGlxMediaList::MediaListsL();
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   118
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	TInt count = mediaLists.Count();
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	item->ReserveUsersL(count);
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	for (TInt i = 0; i < count; i++) 
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		{
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		mediaLists[i]->OfferMedia(iIdSpaceId, item);
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		}
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    return item;    
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    }
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   128
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// -----------------------------------------------------------------------------
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// MediaUpdatedL
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// -----------------------------------------------------------------------------
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//
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void CGlxCache::MediaUpdatedL(const CMPXMedia& aMedia)
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    {
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    TRACER("CGlxCache::MediaUpdatedL");
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    if (aMedia.IsSupported(KMPXMediaArrayContents))
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        {
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        CMPXMediaArray* mediaArray = aMedia.ValueCObjectL<CMPXMediaArray>(KMPXMediaArrayContents);
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        CleanupStack::PushL(mediaArray);
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   141
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        TInt arrayCount = mediaArray->Count();
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		GLX_DEBUG2("CGlxCache::MediaUpdatedL() arrayCount=%d", arrayCount);
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        for (TInt count = 0; count < arrayCount; ++count)
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            {
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            UpdateMediaL(*((*mediaArray)[count]));
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            }
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   148
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        CleanupStack::PopAndDestroy(mediaArray);
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        }
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    else
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        {
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        UpdateMediaL(aMedia);
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        }
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    }
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   156
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// -----------------------------------------------------------------------------
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// UpdateMediaL
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// -----------------------------------------------------------------------------
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void CGlxCache::UpdateMediaL(const CMPXMedia& aMedia)
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    {
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    TRACER("CGlxCache::UpdateMediaL");
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    if ( !aMedia.IsSupported(KMPXMediaGeneralId) )
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        {
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        return;
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        }
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	// Copy/synchronize attributes
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    TGlxMediaId id ((TUint32)aMedia.ValueTObjectL<TMPXItemId>(KMPXMediaGeneralId));
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	GLX_DEBUG2("CGlxCache::UpdateMediaL() id=%d", id.Value());	
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	CGlxMedia* item = Media( id );
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   172
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	RArray<TMPXAttribute> newAttributes;
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	CleanupClosePushL(newAttributes);
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   175
	
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	if ( item )
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		{
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		GLX_DEBUG2("MGallery - CGlxCacheManager::HandleCollectionMediaL() existing item for item id %d", id.Value());
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		CopyNewAndModifiedL(*item, aMedia, newAttributes);
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    	}
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    else 
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    	{
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		GLX_DEBUG2("MGallery - CGlxCacheManager::HandleCollectionMediaL() new item for item id %d", id.Value());
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   184
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    	// This is a new item. Create a media object and offer it to all lists.
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    	// If the item is no longer needed by any list, then this is ok, since
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    	// garbage collection will delete the item
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    	// Add in id order.        	
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   189
    	item = CreateItemL(id);
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   190
    	
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		CopyNewAndModifiedL(*item, aMedia, newAttributes);
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   192
    	}
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   193
		
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	// Broadcast the new attributes to all observers of the item and the cache
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	if (newAttributes.Count() > 0)
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		{
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		TInt count = item->UserCount();
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		for (TInt i = 0; i < count; i++)
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   199
			{
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			item->User( i ).HandleAttributesAvailableL( item->IndexInUser( i ), newAttributes );
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   201
			}
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   202
			
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	    // Broadcast to cache observers
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		// iCacheManager->BroadcastAttributesAvailableL(iIdSpaceId, id, newAttributes, item);
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		}
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   206
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	CleanupStack::PopAndDestroy(&newAttributes);
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   208
    }
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   209
// -----------------------------------------------------------------------------
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// Deletes the media item
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// -----------------------------------------------------------------------------
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void CGlxCache::CleanupMedia(const TGlxMediaId& aMediaId)
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	{
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	TRACER("CGlxCache::CleanupMedia");
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    GLX_DEBUG2("CGlxCache::CleanupMedia -  aMediaId = %d", aMediaId.Value());
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    if(iCacheManager)
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        {
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        iCacheManager->CleanupMedia(aMediaId);
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   219
        }
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	}
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   221
    
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// -----------------------------------------------------------------------------
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// Handles modifications of item in cache
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// -----------------------------------------------------------------------------
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   225
void CGlxCache::HandleItemModified(const TGlxMediaId& aId, const RArray<TMPXAttribute>& aAttributes)
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	{
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	TRACER("CGlxCache::HandleItemModified");
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	TInt index = iItemPool.FindInOrder(aId, (&MediaItemOrderByKey));
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	if (index != KErrNotFound)
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		{
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		iItemPool[index]->HandleModified(aAttributes);
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		}
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	}
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// -----------------------------------------------------------------------------
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// Copies new and modified attributes from the provided media object
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// -----------------------------------------------------------------------------
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//
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void CGlxCache::CopyNewAndModifiedL(CGlxMedia& aTarget, const CMPXMedia& aSource, 
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        RArray<TMPXAttribute>& aNewAttributes)
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    {
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    TRACER("CGlxCache::CopyNewAndModifiedL");
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    CleanupClosePushL(aNewAttributes);
23
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    /// @todo This is all temporary until global chunk based CMPXMedia is available
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    TInt count = aSource.Count();
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	GLX_DEBUG2("CGlxCache::CopyNewAndModifiedL() Attribs count=%d", count);
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    aNewAttributes.ReserveL( count );
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    for (TInt i = 0; i < count; i++)
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        {
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        const TMPXAttribute& attrib = aSource.Attribute(i);
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        if (attrib == KMPXMediaGeneralId)
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            {
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   257
            // Ignore id
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   258
            __ASSERT_DEBUG((TUint32)aSource.ValueTObjectL<TMPXItemId>(attrib) == aTarget.Id().Value(), 
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                           Panic(EGlxPanicIllegalArgument)); // aMedia relates to another media object than this
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            }
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   261
        else 
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            {
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   263
            if (!aTarget.IsSupported(attrib)) 
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   264
                {
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   265
                TMPXAttributeType type = aSource.Type(i);
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   266
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   267
                if (type == EMPXTypeText) 
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                    {
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                    aTarget.SetTextValueL(attrib, aSource.ValueText(attrib));
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   270
                    }
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   271
                else if (type == EMPXTypeCObject) 
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                    {
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                    if ( KGlxMediaIdThumbnail == attrib.ContentId() )
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                        {
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                        // This is a thumbnail
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                        CFbsBitmap* thumbnail = iCacheManager->TempThumbnail();
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                        if ( thumbnail && iCacheManager->TempThumbnailId() == aTarget.Id() )
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                            {
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                            // Add new thumbnail attribute
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                            CGlxThumbnailAttribute* value =
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                                aSource.ValueNoNewLCObjectL<CGlxThumbnailAttribute>(attrib);
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                            CleanupStack::PushL(value);
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                            value->iBitmap = thumbnail;
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                            GLX_DEBUG3("CGlxCache::CopyNewAndModifiedL() TN Attrib w(%d) h(%d)", 
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					        	thumbnail->SizeInPixels().iWidth, thumbnail->SizeInPixels().iHeight);
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                            iCacheManager->SetTempThumbnailToNull();
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                            aTarget.SetCObjectValueL(attrib, value);
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   289
                            CleanupStack::Pop(value);
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   290
                            }
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   291
                        }
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   292
                    else
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   293
                        {
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   294
                        __DEBUG_ONLY(Panic(EGlxPanicNotImplemented)); // Add support for the attribute here
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   295
                        }
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   296
                    }
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   297
                else if (type == EMPXTypeTObject) 
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   298
                    {
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   299
                    if (attrib == KMPXMediaGeneralThumbnail1)
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   300
                        {
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   301
                        // Old thumbnail attribute - ignore
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   302
                        }
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   303
                    else if (attrib == KMPXMediaGeneralDate)
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   304
                        {
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   305
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt64>(attrib));
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   306
                        }
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   307
                    else if (attrib == KGlxMediaGeneralLastModifiedDate)
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diff changeset
   308
                        {
55
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   309
                        TTime modified = aSource.ValueTObjectL<TInt64>(attrib);
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   310
                        TTimeIntervalSeconds utcOffset = User::UTCOffset();
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diff changeset
   311
                        modified += utcOffset;
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diff changeset
   312
                        aTarget.SetTObjectValueL(attrib, modified);
23
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   313
                        }
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   314
                    else if (attrib == KMPXMediaGeneralSize)
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parents:
diff changeset
   315
                        {
55
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diff changeset
   316
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TUint>(attrib));
23
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   317
                        }
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   318
                    else if (attrib == KMPXMediaColDetailSpaceId)
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parents:
diff changeset
   319
                        {
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diff changeset
   320
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TGlxIdSpaceId>(attrib));
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parents:
diff changeset
   321
                        }
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parents:
diff changeset
   322
                    else if (attrib == KMPXMediaGeneralType)
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parents:
diff changeset
   323
                        {
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parents:
diff changeset
   324
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib));
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parents:
diff changeset
   325
                        }
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parents:
diff changeset
   326
                    else if (attrib == KMPXMediaGeneralCategory)
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parents:
diff changeset
   327
                        {
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parents:
diff changeset
   328
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib));
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diff changeset
   329
                        }
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parents:
diff changeset
   330
                    else if (attrib == KMPXMediaGeneralCount)
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parents:
diff changeset
   331
                        {
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parents:
diff changeset
   332
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib));
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parents:
diff changeset
   333
                        }
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parents:
diff changeset
   334
                    else if (attrib == KGlxMediaGeneralDimensions)
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parents:
diff changeset
   335
                        {
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parents:
diff changeset
   336
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TSize>(attrib));
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parents:
diff changeset
   337
                        }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   338
                    else if (attrib == KGlxMediaGeneralLocation)
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   339
                        {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   340
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TCoordinate>(attrib));
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   341
                        }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
                    else if (attrib == KMPXMediaGeneralDuration)
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
                        {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib));
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
                        }  
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
                    else if (attrib == KMPXMediaDrmProtected)
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
                        {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TBool>(attrib));
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
                        }                         
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
                    else if (attrib == KGlxMediaGeneralDRMRightsValid)
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
                        {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TBool>(attrib));
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
                        }                         
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
                    else if (attrib == KGlxMediaGeneralSystemItem)
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
                        {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TBool>(attrib));
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
                        }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
                    else if (attrib == KGlxMediaGeneralFramecount)
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
                        {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib));
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
                        }				         				
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
                    else if(attrib == KGlxMediaGeneralSlideshowableContent)
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
                        {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
                        aTarget.SetTObjectValueL(attrib, aSource.ValueTObjectL<TInt>(attrib));
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
                        }        				
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
                    else
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
                        {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
                        __DEBUG_ONLY(Panic(EGlxPanicNotImplemented)); // Add support for the attribute here
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
                        }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
                    }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
                else 
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
                    {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
                    __DEBUG_ONLY(Panic(EGlxPanicNotImplemented)); 
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
                    }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
                aNewAttributes.AppendL(attrib);
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
                }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
            }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
        }
55
fb37077c270f Revision: 201031
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 23
diff changeset
   380
    CleanupStack::Pop(&aNewAttributes);
23
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
    }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
// Delete
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
//
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
void CGlxCache::Delete( TInt aIndex ) 
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
    {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
    TRACER("CGlxCache::Delete");
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
    
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
    GLX_ASSERT_DEBUG( 0 <= aIndex && aIndex < iItemPool.Count(), 
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
        Panic(EGlxPanicIllegalArgument), "deleting attribute out of bounds");
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
        
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
    CGlxMedia* media = iItemPool[aIndex];
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
    
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
    // Cleanup the media from all users, example texture manager
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
    CleanupMedia(media->Id());
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
    
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
    GLX_DEBUG2("MGallery - CGlxCache::Delete() for item id %d", media->Id().Value());
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
    // notify users that the media object is about to be deleted. This allows
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
    // users to remove their references
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
    // (loop does not t iterate indexes, since the contents of the User array 
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
    // will change during calls to RemoveReferences, as users are removed)
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
    
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
    // safety check that RemoveReference actually removed the reference
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
    __DEBUG_ONLY( TInt _maxLoopCount = 1000 );
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
    
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
    while ( media->UserCount() > 0 )
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
        {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
        // The user must remove a reference and that will decrement the 
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
        // UserCount()
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
        media->User( 0 ).RemoveReference( media->IndexInUser( 0 ) );
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
        
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
        // protect against a bug that would cause hard-to-find infinite loop
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
        __DEBUG_ONLY( _maxLoopCount-- );
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
        GLX_ASSERT_DEBUG( _maxLoopCount != 0, Panic( EGlxPanicLogicError ),
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
            "infinite loop when removing a media object" );
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
        }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
    
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
    delete media;
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
    iItemPool.Remove( aIndex );
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
    }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
    
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
// Reserve space for a number of users, for all items in the cache
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
//
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
void CGlxCache::ReserveUsersL(TInt aCount)
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
    {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
    TRACER("CGlxCache::ReserveUsersL");
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
    
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
    TInt count = iItemPool.Count();
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
    for ( TInt i = 0; i < count ; ++i )
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
        {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
        iItemPool[i]->ReserveUsersL( aCount );
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
        }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
    }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
// MediaItemOrderById
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
//
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
TInt CGlxCache::MediaItemOrderById(const CGlxMedia& aItem1, const CGlxMedia& aItem2) 
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
	{
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
	TRACER("CGlxCache::MediaItemOrderById");
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
	
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
	// Cannot do aItem1.Id() - aItem2.Id(), since Id().Value() returns an unsigned value
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
	TGlxMediaId id1 = aItem1.Id();
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
	return MediaItemOrderByKey( &id1, aItem2 );
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
	}
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
// MediaItemOrderByKey
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
//
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
TInt CGlxCache::MediaItemOrderByKey(const TGlxMediaId* aMediaId, const CGlxMedia& aItem2) 
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
	{
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
	TRACER("CGlxCache::MediaItemOrderByKey");
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
	
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
	TGlxMediaId id2 = aItem2.Id();
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
	if (*aMediaId < id2) 
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
		{
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
		return -1;
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
		}
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
		
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
	if (*aMediaId > id2) 
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
		{
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
		return 1;
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
		}
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
	return 0;
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
	}
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
// Return count of media objects
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
//
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
TInt CGlxCache::Count()
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
    {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
    TRACER("CGlxCache::Count");
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
    
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
    return iItemPool.Count();
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
    }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
    
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
// Return media object by index
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
//
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
CGlxMedia& CGlxCache::Media( TInt aIndex )
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
    {
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   491
    TRACER("CGlxCache::Media");
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   492
    
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   493
    return *iItemPool[aIndex];
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   494
    }
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   495
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   496
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   497
// Return media index
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   498
// -----------------------------------------------------------------------------
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   499
//
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   500
TInt CGlxCache::FindMediaIndexInCache(TGlxMediaId aMediaId)
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   501
	{
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   502
	TRACER("CGlxCache::FindMediaIndexInCache");
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   503
	 
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   504
	return iItemPool.FindInOrder(aMediaId, (&MediaItemOrderByKey));
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   505
	}
74c9f037fd5d Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   506