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// Copyright (c) 2007-2009 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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//
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#include "swdirectgdiimagesourceimpl.h"
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#include "swdirectgdidriverimpl.h"
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#include <graphics/sgimage_sw.h>
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/**
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Constructs a CSwDirectGdiImageTargetImpl
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@param aDriver The driver implementation which created this target.
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*/
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CSwDirectGdiImageSourceImpl::CSwDirectGdiImageSourceImpl(CSwDirectGdiDriverImpl& aDriver) :
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iDriver(aDriver)
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{
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}
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/**
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Destroys a CSwDirectGdiImageSourceImpl.
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@post This image source is removed from the associated driver's list of source images.
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*/
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CSwDirectGdiImageSourceImpl::~CSwDirectGdiImageSourceImpl()
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{
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iDriver.UnregisterSourceImage(*this);
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}
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/**
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Two-phase construction of a CDirectGdiImageSourceImpl object.
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@param aImage On success, holds a pointer to the newly-created image.
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@param aDriver The driver to register this image with.
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@param aSgImage The RSgImage which this image will be based upon.
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@return KErrNone if successful, KErrNoMemory if not enough memory could be allocated, otherwise a return
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value from Construct().
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*/
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TInt CSwDirectGdiImageSourceImpl::New(CSwDirectGdiImageSourceImpl*& aImage, CSwDirectGdiDriverImpl& aDriver, const RSgImage& aSgImage)
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{
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CSwDirectGdiImageSourceImpl* image = new CSwDirectGdiImageSourceImpl(aDriver);
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if (!image)
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return KErrNoMemory;
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TInt err = image->Construct(aSgImage);
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if (err == KErrNone)
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aImage = image;
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else
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delete image;
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return err;
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}
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/**
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Gets the supplied image structure and sets the internal data.
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@param aSgImage The RSgImage to create the source image from.
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@return KErrNone if successful, KErrNotSupported if the RSgImage doesn't have the required interface,
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otherwise an error from CDirectGdiImageRef::Construct().
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*/
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TInt CSwDirectGdiImageSourceImpl::Construct(const RSgImage& aSgImage)
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{
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TInt err = CDirectGdiImageRef::Construct(aSgImage);
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MSgImage_Sw* pImage = NULL;
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if (err == KErrNone)
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{
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RSgImage image = Image();
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err = image.GetInterface(pImage);
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}
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if (err == KErrNone)
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{
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err = iDriver.RegisterSourceImage(*this);
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}
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if (err == KErrNone)
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{
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iDataBuffer = pImage->DataAddress();
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iStride = pImage->DataStride();
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Open();
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}
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return err;
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}
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