--- a/engine/collectionframework/thumbnailcreator/src/glxtnzoomedimagetask.cpp Mon Sep 27 15:13:20 2010 +0530
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,256 +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: Task to generate a cropped thumbnail for a JPEG image.
-*
-*/
-
-
-
-/**
- * @internal reviewed 31/07/2007 by Simon Brooks
- */
-
-#include "glxtnzoomedimagetask.h"
-
-#include <fbs.h>
-#include <glxassert.h>
-#include <glxlog.h>
-#include <IclExtJpegApi.h> // For CExtJpegDecoder
-#include <glxtracer.h>
-
-#include "glxtnfileinfo.h"
-#include "glxtnfileutility.h"
-#include "glxtnthumbnailrequest.h"
-#include "mglxtnthumbnailcreatorclient.h"
-
-// -----------------------------------------------------------------------------
-// NewL
-// -----------------------------------------------------------------------------
-//
-CGlxtnZoomedImageTask* CGlxtnZoomedImageTask::NewL(
- const TGlxThumbnailRequest& aRequestInfo,
- CGlxtnFileUtility& aFileUtility, MGlxtnThumbnailCreatorClient& aClient)
- {
- TRACER("CGlxtnZoomedImageTask* CGlxtnZoomedImageTask::NewL( const TGlxThumbnailRequest& aRequestInfo, CGlxtnFileUtility& aFileUtility, MGlxtnThumbnailCreatorClient& aClient)");
- CGlxtnZoomedImageTask* task = new (ELeave) CGlxtnZoomedImageTask(
- aRequestInfo, aFileUtility, aClient);
- CleanupStack::PushL(task);
- task->ConstructL(aRequestInfo.iBitmapHandle);
- CleanupStack::Pop( task );
- return task;
- }
-
-// -----------------------------------------------------------------------------
-// Destructor
-// -----------------------------------------------------------------------------
-//
-CGlxtnZoomedImageTask::~CGlxtnZoomedImageTask()
- {
- TRACER("CGlxtnZoomedImageTask::~CGlxtnZoomedImageTask()");
- delete iDecoder;
- delete iInfo;
- delete iThumbnail;
- }
-
-// -----------------------------------------------------------------------------
-// Constructor
-// -----------------------------------------------------------------------------
-//
-CGlxtnZoomedImageTask::CGlxtnZoomedImageTask(
- const TGlxThumbnailRequest& aRequestInfo,
- CGlxtnFileUtility& aFileUtility,
- MGlxtnThumbnailCreatorClient& aClient) :
- CGlxtnClientTask(KGlxtnTaskIdZoomedThumbnail, aRequestInfo.iId, aClient),
- iFileUtility(aFileUtility), iRequestedSize(aRequestInfo.iSizeClass),
- iCroppingRect(aRequestInfo.iCroppingRect), iFilter(aRequestInfo.iFilter),
- iDrmAllowed(aRequestInfo.iDrmAllowed)
- {
- TRACER("CGlxtnZoomedImageTask::CGlxtnZoomedImageTask( const TGlxThumbnailRequest& aRequestInfo, CGlxtnFileUtility& aFileUtility, MGlxtnThumbnailCreatorClient& aClient)");
- }
-
-// -----------------------------------------------------------------------------
-// ConstructL
-// -----------------------------------------------------------------------------
-//
-void CGlxtnZoomedImageTask::ConstructL(TInt aBitmapHandle)
- {
- TRACER("void CGlxtnZoomedImageTask::ConstructL(TInt aBitmapHandle)");
- // Duplicate the client's bitmap
- iThumbnail = new (ELeave) CFbsBitmap();
- User::LeaveIfError(iThumbnail->Duplicate(aBitmapHandle));
- }
-
-// -----------------------------------------------------------------------------
-// DoStartL
-// -----------------------------------------------------------------------------
-//
-TBool CGlxtnZoomedImageTask::DoStartL(TRequestStatus& aStatus)
- {
- TRACER("TBool CGlxtnZoomedImageTask::DoStartL(TRequestStatus& aStatus)");
- iInfo = new (ELeave) CGlxtnFileInfo;
- Client().FetchFileInfoL(iInfo, ItemId(), &aStatus);
- iState = EStateFetchingUri;
-
- return ETrue;
- }
-
-// -----------------------------------------------------------------------------
-// DoCancel
-// -----------------------------------------------------------------------------
-//
-void CGlxtnZoomedImageTask::DoCancel()
- {
- TRACER("void CGlxtnZoomedImageTask::DoCancel()");
- if ( EStateFetchingUri == iState )
- {
- Client().CancelFetchUri(ItemId());
- }
- if ( iDecoder )
- {
- iDecoder->Cancel();
- }
-
- iFileUtility.ClearBadFileMarker();
- }
-
-// -----------------------------------------------------------------------------
-// DoRunL
-// -----------------------------------------------------------------------------
-//
-TBool CGlxtnZoomedImageTask::DoRunL(TRequestStatus& aStatus)
- {
- TRACER("TBool CGlxtnZoomedImageTask::DoRunL(TRequestStatus& aStatus)");
- TInt error = aStatus.Int();
- TBool active = EFalse;
-
- if ( KErrNone == error )
- {
- switch ( iState )
- {
- case EStateFetchingUri:
- {
- User::LeaveIfNull(iInfo);
- iFileUtility.CheckBadFileListL( iInfo->FilePath() );
-
- TBool video;
- iInfo->IdentifyFileL(video, iProtected);
- if ( iProtected && !iDrmAllowed )
- {
- User::Leave(KErrAccessDenied);
- }
-
- DecodePartialImageL(aStatus);
- active = ETrue;
- iState = EStateDecoding;
- }
- break;
-
- case EStateDecoding:
- // Nothing to do
- break;
-
- default:
- GLX_ASSERT_ALWAYS( EFalse, Panic( EGlxPanicIllegalState ),
- "CGlxtnZoomedImageTask: Illegal state" );
- break;
- }
- }
-
- if ( !active )
- {
- iFileUtility.ClearBadFileMarker();
- Client().ThumbnailFetchComplete(ItemId(),
- EGlxThumbnailQualityHigh, error);
- }
-
- return active;
- }
-
-// -----------------------------------------------------------------------------
-// DoRunError
-// -----------------------------------------------------------------------------
-//
-TBool CGlxtnZoomedImageTask::DoRunError(TInt aError)
- {
- TRACER("TBool CGlxtnZoomedImageTask::DoRunError(TInt aError)");
- iFileUtility.ClearBadFileMarker();
- Client().ThumbnailFetchComplete(ItemId(), EGlxThumbnailQualityHigh, aError);
-
- return EFalse;
- }
-
-// -----------------------------------------------------------------------------
-// DecodePartialImageL
-// -----------------------------------------------------------------------------
-//
-void CGlxtnZoomedImageTask::DecodePartialImageL(TRequestStatus& aStatus)
- {
- TRACER("void CGlxtnZoomedImageTask::DecodePartialImageL(TRequestStatus& aStatus)");
- TRAPD(err, CreateDecoderL(CExtJpegDecoder::EHwImplementation));
- if ( KErrNone != err )
- {
- CreateDecoderL(CExtJpegDecoder::ESwImplementation);
- }
-
- TSize sourceSize(iDecoder->FrameInfo().iOverallSizeInPixels);
- if ( 0 == sourceSize.iWidth || 0 == sourceSize.iHeight )
- {
- User::Leave(KErrCorrupt);
- }
-
- iCroppingRect.Intersection(TRect(sourceSize));
- if ( iCroppingRect.IsEmpty() )
- {
- User::Leave(KErrArgument);
- }
-
- // Find max scaling factor which won't make image smaller than target size
- TInt shift = 3;
- while ( shift
- && (sourceSize.iWidth >> shift) < iRequestedSize.iWidth
- && (sourceSize.iHeight >> shift) < iRequestedSize.iHeight )
- {
- shift--;
- }
- TInt fudge = (1 << shift) - 1; // Used to "round up" the scaled values
- TSize loadSize((iCroppingRect.Width() + fudge) >> shift,
- (iCroppingRect.Height() + fudge) >> shift);
-
- // Resize empty bitmap to required size
- User::LeaveIfError(iThumbnail->Resize(loadSize));
-
- iDecoder->SetCroppingL(iCroppingRect);
- iDecoder->Convert(&aStatus, *iThumbnail);
- }
-
-// -----------------------------------------------------------------------------
-// CreateDecoderL
-// -----------------------------------------------------------------------------
-//
-void CGlxtnZoomedImageTask::CreateDecoderL(TInt aDecoderType)
- {
- TRACER("void CGlxtnZoomedImageTask::CreateDecoderL(TInt aDecoderType)");
- delete iDecoder;
- iDecoder = NULL;
- iDecoder = CExtJpegDecoder::FileNewL(
- static_cast<CExtJpegDecoder::TDecoderType>(aDecoderType),
- iFileUtility.FsSession(), iInfo->FilePath());
-
- if ( !(CExtJpegDecoder::ECapCropping & iDecoder->CapabilitiesL()) )
- {
- User::Leave(KErrNotSupported);
- }
- }
-
-// End of File