imaging/imagingfws/MediaClientImage/Source/Client/Image/ScalingPriv.cpp
author hgs
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// Copyright (c) 1998-2009 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:
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// SCALING.CPP
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// 
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//
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#include <mdaimageconverter.h>
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#include "MdaImageConverterPriv.h"
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//
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// CMdaBitmapScalerPriv for Image Utility
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//
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CMdaBitmapScalerPriv* CMdaBitmapScalerPriv::NewL()
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	{
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	CMdaBitmapScalerPriv* self = new(ELeave) CMdaBitmapScalerPriv;
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	CleanupStack::PushL(self);
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	self->ConstructL();
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	CleanupStack::Pop(); // self
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	return self;
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	}
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CMdaBitmapScalerPriv::CMdaBitmapScalerPriv():
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	CActive(CActive::EPriorityStandard)
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	{
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	CActiveScheduler::Add(this);
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	}
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void CMdaBitmapScalerPriv::ConstructL()
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	{
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	iBitmapScaler = CBitmapScaler::NewL();
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	}
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CMdaBitmapScalerPriv::~CMdaBitmapScalerPriv()
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	{
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	Cancel();
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	delete iBitmapScaler;
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	}
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void CMdaBitmapScalerPriv::ScaleL(MMdaImageUtilObserver& aObserver,CFbsBitmap& aSrcBitmap,CFbsBitmap& aTgtBitmap,TBool aMaintainAspectRatio)
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	{
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	CancelScaling();
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	iObserver = &aObserver;
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	iBitmapScaler->Scale(&iStatus, aSrcBitmap, aTgtBitmap, aMaintainAspectRatio);
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	SetActive();
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	}
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void CMdaBitmapScalerPriv::ScaleL(MMdaImageUtilObserver& aObserver,CFbsBitmap& aBitmap,TSize aDestSize,TBool aMaintainAspectRatio)
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	{
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	// Cancel any scaling operation currently in progress
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	CancelScaling();
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	iObserver = &aObserver;
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	iBitmapScaler->Scale(&iStatus, aBitmap, aDestSize, aMaintainAspectRatio);
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	SetActive();
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	}
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void CMdaBitmapScalerPriv::CancelScaling()
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	{	
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	Cancel();
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	}
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void CMdaBitmapScalerPriv::RunL()
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	{
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	ASSERT(iObserver);
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	iObserver->MiuoConvertComplete(iStatus.Int());
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	}
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void CMdaBitmapScalerPriv::DoCancel()
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	{
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	iBitmapScaler->Cancel();
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	}