author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 14 Sep 2010 21:19:17 +0300 | |
branch | RCL_3 |
changeset 27 | 34937ec34dac |
parent 26 | 5b3385a43d68 |
permissions | -rw-r--r-- |
26 | 1 |
/* |
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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 defination for preview thumbnail in list view |
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* |
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*/ |
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#include <mglxmedialist.h> |
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#include <glxthumbnailcontext.h> |
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#include <glxfilterfactory.h> // For TGlxFilterFactory |
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#include <glxthumbnailattributeinfo.h> |
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#include <glxuiutility.h> // For UiUtility instance |
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#include <glxtracer.h> |
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#include <glxlog.h> |
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#include <glxerrormanager.h> // For CGlxErrormanager |
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#include <glxuistd.h> // Fetch context priority def'ns |
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#include <mglxcache.h> |
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#include <ganes/HgDoubleGraphicList.h> |
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#include "glxpreviewthumbnailbinding.h" |
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#include "glxgeneraluiutilities.h" |
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const TInt KThumbnailsTimeTimeDelay(50000); |
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const TInt KWaitCount(30); |
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const TInt KPreviewThumbnailFetchCount(1); |
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// ---------------------------------------------------------------------------- |
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// NewL |
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// ---------------------------------------------------------------------------- |
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// |
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CGlxPreviewThumbnailBinding* CGlxPreviewThumbnailBinding::NewL( |
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MPreviewTNObserver& aObserver) |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::NewL"); |
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CGlxPreviewThumbnailBinding* self = CGlxPreviewThumbnailBinding::NewLC(aObserver); |
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CleanupStack::Pop(self); |
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return self; |
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} |
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// ---------------------------------------------------------------------------- |
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// NewLC |
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// ---------------------------------------------------------------------------- |
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// |
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CGlxPreviewThumbnailBinding* CGlxPreviewThumbnailBinding::NewLC( |
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MPreviewTNObserver& aObserver) |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::NewLC"); |
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CGlxPreviewThumbnailBinding* self = new(ELeave)CGlxPreviewThumbnailBinding(aObserver); |
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CleanupStack::PushL(self); |
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self->ConstructL(); |
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return self; |
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} |
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// ---------------------------------------------------------------------------- |
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// Constructor |
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// ---------------------------------------------------------------------------- |
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// |
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CGlxPreviewThumbnailBinding::CGlxPreviewThumbnailBinding( |
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MPreviewTNObserver& aObserver) |
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: iObserver(aObserver) |
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{ |
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} |
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// ---------------------------------------------------------------------------- |
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// ConstructL |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::ConstructL() |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::ConstructL"); |
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iTimer = CPeriodic::NewL( CActive::EPriorityStandard ); |
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CGlxUiUtility* uiUtility = CGlxUiUtility::UtilityL(); |
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CleanupClosePushL(*uiUtility); |
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iGridIconSize = uiUtility->GetGridIconSize(); |
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CleanupStack::PopAndDestroy(uiUtility); |
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// Filter that filters out any GIF, corrupted images |
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iPreviewFilter = TGlxFilterFactory::CreatePreviewTNFilterL(); |
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iThumbnailIterator.SetRange(KPreviewThumbnailFetchCount); |
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iThumbnailContext = new (ELeave) CGlxAttributeContext(&iThumbnailIterator); |
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TMPXAttribute tnAttr( KGlxMediaIdThumbnail, |
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GlxFullThumbnailAttributeId(ETrue, |
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iGridIconSize.iWidth,iGridIconSize.iHeight) ); |
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iThumbnailContext->SetDefaultSpec(iGridIconSize.iWidth, |
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iGridIconSize.iHeight); |
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iThumbnailContext->AddAttributeL(tnAttr); |
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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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CGlxPreviewThumbnailBinding::~CGlxPreviewThumbnailBinding() |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::~CGlxPreviewThumbnailBinding"); |
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// close any medialist that exist |
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if( iMediaList ) |
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{ |
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iMediaList->RemoveMediaListObserver( this ); |
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iMediaList->RemoveContext(iThumbnailContext); |
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iMediaList->Close(); |
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iMediaList = NULL; |
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} |
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delete iThumbnailContext; |
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delete iPreviewFilter; |
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// cancel any outstanding request of the timer |
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if(iTimer->IsActive()) |
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{ |
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iTimer->Cancel(); |
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} |
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delete iTimer; |
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iTimer = NULL; |
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} |
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// ---------------------------------------------------------------------------- |
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// TimerTickedL: we need to update only when required i.e, when the thumbnail count |
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// has not reached till the max limit to be shown |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::TimerTickedL() |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::TimerTickedL"); |
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if (!iMediaList) |
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{ |
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GLX_LOG_INFO("TimerTickedL() iMediaList == NULL!"); |
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return; |
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} |
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if (iMediaList->IsPopulated()) |
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{ |
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if (iMediaList->Count()) |
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{ |
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const TGlxMedia& item = iMediaList->Item(0); |
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TMPXAttribute thumbnailAttribute(KGlxMediaIdThumbnail, |
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GlxFullThumbnailAttributeId(ETrue, iGridIconSize.iWidth, |
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iGridIconSize.iHeight)); |
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const CGlxThumbnailAttribute* value = item.ThumbnailAttribute( |
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thumbnailAttribute); |
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if (value) |
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{ |
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CFbsBitmap* bitmap = new (ELeave) CFbsBitmap; |
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27
34937ec34dac
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
26
diff
changeset
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CleanupStack::PushL(bitmap); |
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ScaleBitmapToListSizeL(value->iBitmap, bitmap); |
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GLX_LOG_INFO1("iObserver.PreviewTNReadyL() iTrialCount=%d", iTrialCount); |
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iObserver.PreviewTNReadyL(bitmap, NULL); |
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27
34937ec34dac
Revision: 201033
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
26
diff
changeset
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CleanupStack::Pop(bitmap); |
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} |
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else |
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{ |
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TInt tnError = GlxErrorManager::HasAttributeErrorL( |
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item.Properties(), KGlxMediaIdThumbnail); |
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if (tnError != KErrNone || iTrialCount == KWaitCount) |
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{ |
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GLX_LOG_INFO1("TimerTickedL() tnError(%d) / Max Trialcount reached", tnError); |
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iObserver.PreviewTNReadyL(NULL, NULL); |
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iTrialCount = 0; |
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return; |
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} |
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iTrialCount++; |
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} |
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} |
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else |
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{ |
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// Media count is zero, |
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// Notify immedialtely to jump to the next item in the list |
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GLX_LOG_INFO("TimerTickedL() iMediaList->Count() = 0"); |
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iObserver.PreviewTNReadyL(NULL, NULL); |
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} |
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} |
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} |
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// ---------------------------------------------------------------------------- |
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// IsTimeL callback function invoked when timer expires |
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// ---------------------------------------------------------------------------- |
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// |
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TInt CGlxPreviewThumbnailBinding::IsTimeL( TAny* aSelf ) |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::IsTimeL"); |
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if (aSelf) |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::IsTimeL"); |
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CGlxPreviewThumbnailBinding* self = static_cast<CGlxPreviewThumbnailBinding*>(aSelf); |
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if(self) |
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{ |
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self->TimerTickedL(); |
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} |
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} |
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return KErrNone; |
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} |
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// ---------------------------------------------------------------------------- |
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// HandleItemChangedL |
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// This function basically closes the old medialist if any for ex. Tags, |
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// Captured.. and then opens a new medialist with teh required filter. |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::HandleItemChangedL(const CMPXCollectionPath& aPath, |
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TBool aIsRefreshNeeded, TBool aBackwardNavigation) |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::HandleItemChangedL"); |
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GLX_LOG_INFO("CGlxPreviewThumbnailBinding::HandleItemChangedL()"); |
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iTimerTicked = EFalse; |
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iIsRefreshNeeded = aIsRefreshNeeded; |
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// remove and close old medialist |
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if( iMediaList ) |
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{ |
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// Reset the trialCount to 0 while deleting the medialist |
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iTrialCount = 0; |
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iMediaList->RemoveMediaListObserver( this ); |
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iMediaList->RemoveContext(iThumbnailContext); |
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iMediaList->Close(); |
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iMediaList = NULL; |
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} |
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iMediaList = MGlxMediaList::InstanceL(aPath, KGlxIdNone, iPreviewFilter); |
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iMediaList->AddContextL(iThumbnailContext, KGlxFetchContextPriorityNormal); |
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// adding the medialist to observ any changes or updates done |
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iMediaList->AddMediaListObserverL(this); |
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if(aBackwardNavigation) |
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{ |
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//On backward navigation start the timer manually, since we do not |
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//get the attribute callback. |
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StartTimer(); |
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} |
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} |
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// ---------------------------------------------------------------------------- |
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// StartTimer - Starts the timer based on the flag populateListTN's |
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// where the flag will be true, when initially the first thumbnails in the list |
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// are populated. |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::StartTimer() |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::StartTimer"); |
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if (iTimer) |
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{ |
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iTimer->Cancel(); |
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} |
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iTimer->Start(KThumbnailsTimeTimeDelay, KThumbnailsTimeTimeDelay, |
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TCallBack(IsTimeL, this)); |
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} |
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// ---------------------------------------------------------------------------- |
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// StopTimer - Stop the timer |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::StopTimer() |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::StopTimer"); |
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if (iTimer && iTimer->IsActive()) |
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{ |
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iTimer->Cancel(); |
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} |
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} |
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// ---------------------------------------------------------------------------- |
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// HandleItemAddedL |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::HandleItemAddedL( TInt /*aStartIndex*/, TInt |
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/*aEndIndex*/, MGlxMediaList* /*aList*/ ) |
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{ |
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} |
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// ---------------------------------------------------------------------------- |
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// HandleItemRemoved |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::HandleItemRemovedL( TInt /*aStartIndex*/, TInt |
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/*aEndIndex*/, MGlxMediaList* /*aList*/ ) |
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{ |
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} |
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// ---------------------------------------------------------------------------- |
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// HandleAttributesAvailableL |
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// Inside this function we are going to append the index for which we have valid |
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// thumbnails and when the number of available thumbnails become equal to the |
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// number of slots where thumbnail to be shown we go for updating them to visual |
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// item. |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::HandleAttributesAvailableL( TInt aItemIndex, |
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const RArray<TMPXAttribute>& aAttributes, MGlxMediaList* /*aList*/ ) |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::HandleAttributesAvailableL"); |
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TMPXAttribute thumbnailAttribute(KGlxMediaIdThumbnail, |
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GlxFullThumbnailAttributeId( ETrue, iGridIconSize.iWidth, |
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iGridIconSize.iHeight ) ); |
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TIdentityRelation< TMPXAttribute > match ( &TMPXAttribute::Match ); |
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if (KErrNotFound != aAttributes.Find( thumbnailAttribute, match )) |
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{ |
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const TGlxMedia& item = iMediaList->Item( aItemIndex ); |
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const CGlxThumbnailAttribute* value = item.ThumbnailAttribute( |
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thumbnailAttribute ); |
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if (value) |
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{ |
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GLX_LOG_INFO("CGlxPreviewThumbnailBinding::HandleAttributesAvailableL()"); |
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StartTimer(); |
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} |
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} |
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} |
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// ---------------------------------------------------------------------------- |
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// HandleFocusChangedL |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::HandleFocusChangedL( NGlxListDefs:: |
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TFocusChangeType /*aType*/, TInt /*aNewIndex*/, TInt /*aOldIndex*/, |
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MGlxMediaList* /*aList*/ ) |
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{ |
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} |
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// ---------- ------------------------------------------------------------------ |
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// HandleItemSelected |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::HandleItemSelectedL(TInt /*aIndex*/, |
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TBool /*aSelected*/, MGlxMediaList* /*aList*/ ) |
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{ |
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} |
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// ---------------------------------------------------------------------------- |
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// HandleMessageL |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::HandleMessageL( const CMPXMessage& /*aMessage*/, |
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MGlxMediaList* /*aList*/ ) |
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{ |
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} |
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// ---------------------------------------------------------------------------- |
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// HandleError |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::HandleError( TInt /*aError*/ ) |
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{ |
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} |
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// ---------------------------------------------------------------------------- |
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// HandleCommandCompleteL |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::HandleCommandCompleteL( CMPXCommand* |
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/*aCommandResult*/, |
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TInt /*aError*/, MGlxMediaList* /*aList*/ ) |
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{ |
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} |
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// ---------------------------------------------------------------------------- |
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// HandleMediaL |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::HandleMediaL( TInt /*aListIndex*/, |
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MGlxMediaList* /*aList*/ ) |
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{ |
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} |
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// ---------------------------------------------------------------------------- |
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// HandleItemModifiedL |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::HandleItemModifiedL( const RArray<TInt>& |
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/*aItemIndexes*/, |
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MGlxMediaList* /*aList*/ ) |
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{ |
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} |
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// ---------------------------------------------------------------------------- |
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// HandlePopulatedL |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::HandlePopulatedL( MGlxMediaList* /*aList*/ ) |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::HandlePopulatedL()"); |
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GLX_LOG_INFO("CGlxPreviewThumbnailBinding::HandlePopulatedL()"); |
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// Do cache cleanup. If iIsRefreshNeeded is set, |
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// then clean up the item at 0th index |
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if (iIsRefreshNeeded) |
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{ |
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if (iMediaList && iMediaList->Count() > 0) |
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{ |
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GLX_LOG_INFO("**** Cache Cleanup ****"); |
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MGlxCache* cacheManager = MGlxCache::InstanceL(); |
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cacheManager->ForceCleanupMedia(iMediaList->IdSpaceId(0), |
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iMediaList->Item(0).Id()); |
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cacheManager->Close(); |
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} |
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} |
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//Start the timer |
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StartTimer(); |
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} |
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// ---------------------------------------------------------------------------- |
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// ScaleBitmapToListSizeL |
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// ---------------------------------------------------------------------------- |
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// |
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void CGlxPreviewThumbnailBinding::ScaleBitmapToListSizeL( |
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CFbsBitmap* aSrcBitmap, CFbsBitmap* aDestBitmap) |
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{ |
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TRACER("CGlxPreviewThumbnailBinding::ScaleBitmapToListSizeL()"); |
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TSize destSize = CHgDoubleGraphicList::PreferredImageSize(); |
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TSize srcSize = aSrcBitmap->SizeInPixels(); |
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if (destSize.iHeight * srcSize.iWidth < destSize.iWidth * srcSize.iHeight) |
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{ |
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// Source has taller aspect than target so reduce target width |
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destSize.iWidth = ((destSize.iHeight * srcSize.iWidth) |
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/ (srcSize.iHeight)); |
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} |
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else |
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{ |
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// Source has wider aspect than target so reduce target height |
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destSize.iHeight = (destSize.iWidth * srcSize.iHeight) |
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/ srcSize.iWidth; |
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} |
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aDestBitmap->Create(destSize, aSrcBitmap->DisplayMode()); |
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CFbsBitmapDevice* bitmapDevice = CFbsBitmapDevice::NewL(aDestBitmap); |
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CleanupStack::PushL(bitmapDevice); |
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CFbsBitGc* bitmapGc = CFbsBitGc::NewL(); |
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CleanupStack::PushL(bitmapGc); |
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bitmapGc->Activate(bitmapDevice); |
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bitmapGc->DrawBitmap(TRect(destSize), aSrcBitmap); |
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CleanupStack::PopAndDestroy(bitmapGc); |
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CleanupStack::PopAndDestroy(bitmapDevice); |
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} |