diff -r 000000000000 -r dd21522fd290 webengine/pagescaler/src/minimapscaler.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/webengine/pagescaler/src/minimapscaler.cpp Mon Mar 30 12:54:55 2009 +0300 @@ -0,0 +1,168 @@ +/* +* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of the License "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: +* +*/ + + + +// INCLUDE FILES + +#include "minimapscaler.h" + +#include +#include + +// EXTERNAL DATA STRUCTURES + +// EXTERNAL FUNCTION PROTOTYPES + +// CONSTANTS + +// MACROS + +// LOCAL CONSTANTS AND MACROS + +// MODULE DATA STRUCTURES + +// LOCAL FUNCTION PROTOTYPES + +// FORWARD DECLARATIONS + +// ============================= LOCAL FUNCTIONS =============================== + + +// ============================ MEMBER FUNCTIONS =============================== + +// ----------------------------------------------------------------------------- +// CMinimapScaler::CMinimapScaler +// C++ default constructor can NOT contain any code, that +// might leave. +// ----------------------------------------------------------------------------- +// +CMinimapScaler::CMinimapScaler(MMinimapScalerCallback& aCallback) + : CActive(CActive::EPriorityIdle-1), iCallback(&aCallback) + { + CActiveScheduler::Add(this); + } + +// ----------------------------------------------------------------------------- +// CMinimapScaler::ConstructL +// Symbian 2nd phase constructor can leave. +// ----------------------------------------------------------------------------- +// +void CMinimapScaler::ConstructL() + { + iScaler = CBitmapScaler::NewL(); + } + +// ----------------------------------------------------------------------------- +// CMinimapScaler::NewL +// Two-phased constructor. +// ----------------------------------------------------------------------------- +// +CMinimapScaler* CMinimapScaler::NewL(MMinimapScalerCallback& aCallback) + { + CMinimapScaler* self = new( ELeave ) CMinimapScaler(aCallback); + + CleanupStack::PushL( self ); + self->ConstructL(); + CleanupStack::Pop(); + + return self; + } + + +// Destructor +CMinimapScaler::~CMinimapScaler() + { + Cancel(); + delete iScaler; + delete iResultBitmap; + } + + +// ----------------------------------------------------------------------------- +// CMinimapScaler::StartScalingL +// +// +// ----------------------------------------------------------------------------- +// +void CMinimapScaler::StartScalingL(CFbsBitmap& aSource, const TRect& aTargetRect) + { + // cancel outstanding request + Cancel(); + + if (!iResultBitmap || iResultBitmap->SizeInPixels() != aTargetRect.Size()) + { + DeleteResultBitmap(); + // create target bitmap + iResultBitmap = new (ELeave) CFbsBitmap(); + User::LeaveIfError(iResultBitmap->Create(aTargetRect.Size(),aSource.DisplayMode())); + } + // start scaling, async + iTargetRect = aTargetRect; + iScaler->Scale(&iStatus, aSource, *iResultBitmap, EFalse); + + SetActive(); + } + + +// ----------------------------------------------------------------------------- +// CMinimap::DeleteResultBitmap +// +// +// ----------------------------------------------------------------------------- +// +void CMinimapScaler::DeleteResultBitmap() + { + delete iResultBitmap; + iResultBitmap = 0; + } + + +// ----------------------------------------------------------------------------- +// CMinimap::DoCancel +// +// +// ----------------------------------------------------------------------------- +// +void CMinimapScaler::DoCancel() + { + iScaler->Cancel(); + DeleteResultBitmap(); + } + + +// ----------------------------------------------------------------------------- +// CMinimap::RunL +// +// +// ----------------------------------------------------------------------------- +// +void CMinimapScaler::RunL() + { + iCallback->ScalingCompletedL(*iResultBitmap, iTargetRect); + // if the callback called StartScalingL(), we must not delete the bitmap + if (!IsActive()) + { + DeleteResultBitmap(); + } + } + + +// ========================== OTHER EXPORTED FUNCTIONS ========================= + + +// End of File