--- a/engine/collectionframework/thumbnailcreator/src/glxtngeneratethumbnailtask.cpp Mon Sep 27 15:13:20 2010 +0530
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,335 +0,0 @@
-/*
-* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - initial contribution.
-*
-* Contributors:
-*
-* Description: Classes for thumbnail-related tasks.
-*
-*/
-
-
-
-/**
- * @internal reviewed 31/07/2007 by Simon Brooks
- */
-
-#include "glxtngeneratethumbnailtask.h"
-
-#include <bitdev.h>
-#include <fbs.h>
-#include <glxassert.h>
-#include <glxlog.h>
-#include <glxtracer.h>
-#include <glxthumbnail.h>
-
-#include "glxtnfileinfo.h"
-#include "glxtnfileutility.h"
-#include "glxtnimageutility.h"
-#include "glxtnsavethumbnailtask.h"
-#include "glxtntaskmanager.h"
-#include "glxtnthumbnailrequest.h"
-#include "glxtnvideoutility.h"
-#include "mglxtnthumbnailcreatorclient.h"
-
-// -----------------------------------------------------------------------------
-// NewL
-// -----------------------------------------------------------------------------
-//
-CGlxtnGenerateThumbnailTask* CGlxtnGenerateThumbnailTask::NewL(
- const TGlxThumbnailRequest& aRequestInfo,
- CGlxtnFileUtility& aFileUtility, MGlxtnThumbnailCreatorClient& aClient)
- {
- TRACER("CGlxtnGenerateThumbnailTask::NewL()");
- CGlxtnGenerateThumbnailTask* task
- = new (ELeave) CGlxtnGenerateThumbnailTask(
- aRequestInfo, aFileUtility, aClient);
- CleanupStack::PushL(task);
- task->ConstructL(aRequestInfo.iBitmapHandle);
- CleanupStack::Pop( task );
- return task;
- }
-
-// -----------------------------------------------------------------------------
-// Constructor
-// -----------------------------------------------------------------------------
-//
-CGlxtnGenerateThumbnailTask::CGlxtnGenerateThumbnailTask(
- const TGlxThumbnailRequest& aRequestInfo,
- CGlxtnFileUtility& aFileUtility, MGlxtnThumbnailCreatorClient& aClient) :
- CGlxtnLoadThumbnailTask( KGlxtnTaskIdGenerateThumbnail,
- aRequestInfo, aFileUtility, aClient )
- {
- TRACER("CGlxtnGenerateThumbnailTask::CGlxtnGenerateThumbnailTask()");
- }
-
-// -----------------------------------------------------------------------------
-// ConstructL
-// -----------------------------------------------------------------------------
-//
-void CGlxtnGenerateThumbnailTask::ConstructL(TInt aBitmapHandle)
- {
- TRACER("CGlxtnGenerateThumbnailTask::ConstructL()");
- CGlxtnLoadThumbnailTask::ConstructL( aBitmapHandle );
-
- iImageUtility = new (ELeave) CGlxtnImageUtility(iFileUtility.FsSession());
- }
-
-// -----------------------------------------------------------------------------
-// Destructor
-// -----------------------------------------------------------------------------
-//
-CGlxtnGenerateThumbnailTask::~CGlxtnGenerateThumbnailTask()
- {
- TRACER("CGlxtnGenerateThumbnailTask::~CGlxtnGenerateThumbnailTask()");
- delete iImageUtility;
- delete iVideoUtility;
- delete iImage;
- }
-
-// -----------------------------------------------------------------------------
-// SetManager
-// -----------------------------------------------------------------------------
-//
-void CGlxtnGenerateThumbnailTask::SetManager(CGlxtnTaskManager* aManager)
- {
- TRACER("void CGlxtnGenerateThumbnailTask::SetManager()");
- iTaskManager = aManager;
- }
-
-// -----------------------------------------------------------------------------
-// DoStartL
-// -----------------------------------------------------------------------------
-//
-TBool CGlxtnGenerateThumbnailTask::DoStartL(TRequestStatus& aStatus)
- {
- TRACER("CGlxtnGenerateThumbnailTask::DoStartL()");
- iInfo = new (ELeave) CGlxtnFileInfo;
- Client().FetchFileInfoL(iInfo, ItemId(), &aStatus);
- iState = EStateFetchingUri;
-
- return ETrue; // Request has been issued
- }
-
-// -----------------------------------------------------------------------------
-// DoCancel
-// -----------------------------------------------------------------------------
-//
-void CGlxtnGenerateThumbnailTask::DoCancel()
- {
- TRACER("void CGlxtnGenerateThumbnailTask::DoCancel()");
- CGlxtnLoadThumbnailTask::DoCancel();
-
- iImageUtility->Cancel();
-
- if ( iVideoUtility )
- {
- iVideoUtility->Cancel();
- }
-
- iFileUtility.ClearBadFileMarker();
- }
-
-// -----------------------------------------------------------------------------
-// DoRunL
-// -----------------------------------------------------------------------------
-//
-TBool CGlxtnGenerateThumbnailTask::DoRunL(TRequestStatus& aStatus)
- {
- TRACER("TBool CGlxtnGenerateThumbnailTask::DoRunL()");
- TInt error = aStatus.Int();
-
- TBool active = EFalse;
-
- if ( KErrNone == error )
- {
- switch ( iState )
- {
- case EStateFetchingUri:
- {
- User::LeaveIfNull(iInfo);
- iBadFileMarkerNotNeededFlag = ETrue;
-
- iInfo->IdentifyFileL(iVideo, iProtected);
- // leave if file is DRM protected and client has no DRM
- // capablity
- if ( iProtected && !iDrmAllowed )
- {
- User::Leave(KErrAccessDenied);
- }
-
- if ( !LoadThumbnailL( aStatus ) )
- {
- iBadFileMarkerNotNeededFlag = EFalse;
- iFileUtility.CheckBadFileListL( iInfo->FilePath() );
- HighQualityDecodeL( aStatus );
- }
- active = ETrue;
- }
- break;
-
- case EStateLoading:
- active = HandleLoadedThumbnailL( aStatus );
- break;
-
- case EStateDecodingThumbnail:
- // Nothing to do
- break;
-
- case EStateDecodingImage:
- {
- iImageUtility->FreeDecoder();
-
- // Resize empty bitmap to required size
- TSize targetSize(iRequestedSize);
- iImageUtility->AdjustSize(targetSize, iImage->SizeInPixels());
- User::LeaveIfError(iThumbnail->Resize(targetSize));
-
- iImageUtility->FilterImageL(&aStatus, iImage, iImage, iThumbnail);
- iState = EStateFiltering;
- active = ETrue;
- }
- break;
-
- case EStateFiltering:
- {
- TSize targetSize(iRequestedSize);
- const TSize srcSize = iImage->SizeInPixels();
- iImageUtility->AdjustSize(targetSize, iImage->SizeInPixels());
- iImageUtility->ScaleImageL(aStatus, *iImage, srcSize, *iThumbnail, targetSize);
- iState = EStateScaling;
- active = ETrue;
- }
- break;
-
- case EStateScaling:
- {
- User::LeaveIfError(iThumbnail->SetDisplayMode(KGlxThumbnailDisplayMode));
-
- // Create task to save generated thumbnail
- if ( Storage() && !iInfo->iTemporary
- && !SizeRequiresDrmRights()
- && iFileUtility.IsPersistentSize(iRequestedSize) )
- {
- CGlxtnSaveThumbnailTask* task
- = CGlxtnSaveThumbnailTask::NewL(ItemId(), iInfo,
- iRequestedSize, iThumbnail, Storage());
- iThumbnail = NULL; // Task has ownership
- iInfo = NULL; // Task has ownership
- iTaskManager->AddTaskL(task);
- }
- break;
- }
-
- default:
- GLX_ASSERT_ALWAYS( EFalse, Panic( EGlxPanicIllegalState ),
- "CGlxtnGenerateThumbnailTask: Illegal state" );
- break;
- }
- }
- else
- {
- if ( EStateLoading == iState )
- {
- // Loading failed - generate new thumbnail instead
- HighQualityDecodeL( aStatus );
- active = ETrue;
- }
- }
-
- if ( !active )
- {
- if ( !iBadFileMarkerNotNeededFlag )
- {
- iFileUtility.ClearBadFileMarker();
- }
- Client().ThumbnailFetchComplete(ItemId(),
- EGlxThumbnailQualityHigh, error);
- }
-
- return active;
- }
-
-// -----------------------------------------------------------------------------
-// DoRunError
-// -----------------------------------------------------------------------------
-//
-TBool CGlxtnGenerateThumbnailTask::DoRunError(TInt aError)
- {
- TRACER("TBool CGlxtnGenerateThumbnailTask::DoRunError(TInt aError)");
- iFileUtility.ClearBadFileMarker();
- Client().ThumbnailFetchComplete(ItemId(), EGlxThumbnailQualityHigh, aError);
-
- return EFalse;
- }
-
-// ---------------------------------------------------------------------------
-// HighQualityDecodeL
-// ---------------------------------------------------------------------------
-//
-void CGlxtnGenerateThumbnailTask::HighQualityDecodeL(
- TRequestStatus& aStatus )
- {
- TRACER("void CGlxtnGenerateThumbnailTask::HighQualityDecodeL()");
- RArray<TSize> targetSizes;
- CleanupClosePushL(targetSizes);
- targetSizes.AppendL( TSize(iRequestedSize) );
- if ( iVideo )
- {
- iVideoUtility = new (ELeave) CGlxtnVideoUtility;
- iVideoUtility->GetVideoFrameL( &aStatus, iImage, iInfo->FilePath(), targetSizes, KGlxThumbnailDisplayMode );
- }
- else
- {
- iImage = iImageUtility->DecodeImageL( aStatus, iInfo->FilePath(),
- targetSizes, KGlxThumbnailDisplayMode );
- }
- CleanupStack::PopAndDestroy(&targetSizes);
- iState = EStateDecodingImage;
- }
-
-// -----------------------------------------------------------------------------
-// SizeRequiresDrmRights
-// -----------------------------------------------------------------------------
-//
-TBool CGlxtnGenerateThumbnailTask::SizeRequiresDrmRights()
- {
- TRACER("TBool CGlxtnGenerateThumbnailTask::SizeRequiresDrmRights()");
- if ( iProtected )
- {
- if ( iVideo )
- {
- return ETrue;
- }
-
- // Rights are required if thumbnail doesn't fit in KGlxThumbnailDrmWidth
- // by KGlxThumbnailDrmHeight box either portrait or landscape
- if ( (iRequestedSize.iWidth > KGlxThumbnailDrmWidth
- || iRequestedSize.iHeight > KGlxThumbnailDrmHeight)
- && (iRequestedSize.iWidth > KGlxThumbnailDrmHeight
- || iRequestedSize.iHeight > KGlxThumbnailDrmWidth) )
- {
- return ETrue;
- }
-
- const TSize& imageSize(iImageUtility->OriginalSize());
-
- // Rights are required if thumbnail is greater than 25% of image size
- // Due to preserving aspect ratio, this will only happen if both width
- // and height are greater than half the image width and height
- if ( iRequestedSize.iWidth > imageSize.iWidth / 2
- && iRequestedSize.iHeight> imageSize.iHeight / 2 )
- {
- return ETrue;
- }
- }
-
- return EFalse;
- }