/*

* 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 "BrowserFaviconScaler.h"

#include <fbs.h>

#include <BitmapTransforms.h>

// EXTERNAL DATA STRUCTURES

// EXTERNAL FUNCTION PROTOTYPES

// CONSTANTS

// MACROS

// LOCAL CONSTANTS AND MACROS

// MODULE DATA STRUCTURES

// LOCAL FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

// ============================= LOCAL FUNCTIONS ===============================

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// CBrowserFaviconScaler::CBrowserFaviconScaler

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

CBrowserFaviconScaler::CBrowserFaviconScaler(MBrowserFaviconScalerCallback& aCallback)

    : CActive(CActive::EPriorityIdle-1), iCallback(&aCallback)

    {

    CActiveScheduler::Add(this);

    }

// -----------------------------------------------------------------------------

// CBrowserFaviconScaler::ConstructL

// Symbian 2nd phase constructor can leave.

// -----------------------------------------------------------------------------

//

void CBrowserFaviconScaler::ConstructL()

    {

    iScaler = CBitmapScaler::NewL();

    }

// -----------------------------------------------------------------------------

// CBrowserFaviconScaler::NewL

// Two-phased constructor.

// -----------------------------------------------------------------------------

//

CBrowserFaviconScaler* CBrowserFaviconScaler::NewL(MBrowserFaviconScalerCallback& aCallback)

    {

    CBrowserFaviconScaler* self = new( ELeave ) CBrowserFaviconScaler(aCallback);

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

// Destructor

CBrowserFaviconScaler::~CBrowserFaviconScaler()

    {

    Cancel();

    delete iScaler;

    //delete iResultBitmap;

    }

// -----------------------------------------------------------------------------

// CBrowserFaviconScaler::StartScalingL

//

//

// -----------------------------------------------------------------------------

//

void CBrowserFaviconScaler::StartScalingL(CFbsBitmap& aSource, const TRect& aTargetRect, TBool aIsMask)

    {

    // cancel outstanding request

    Cancel();

    // create target bitmap

    iResultBitmap = new (ELeave) CFbsBitmap();

    TDisplayMode dispMode = (aIsMask) ? EGray256 : aSource.DisplayMode();

    User::LeaveIfError(iResultBitmap->Create(aTargetRect.Size(), dispMode));

    // start scaling, async

    iTargetRect = aTargetRect;

    iScaler->Scale(&iStatus, aSource, *iResultBitmap, EFalse);

    SetActive();

    }

// -----------------------------------------------------------------------------

// CPageOverview::DeleteResultBitmap

//

//

// -----------------------------------------------------------------------------

//

void CBrowserFaviconScaler::DeleteResultBitmap()

    {

    delete iResultBitmap;

    iResultBitmap = 0;

    }

// -----------------------------------------------------------------------------

// CPageOverview::DoCancel

//

//

// -----------------------------------------------------------------------------

//

void CBrowserFaviconScaler::DoCancel()

    {

    iScaler->Cancel();

    DeleteResultBitmap();

    }

// -----------------------------------------------------------------------------

// CPageOverview::RunL

//

//

// -----------------------------------------------------------------------------

//

void CBrowserFaviconScaler::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