// Copyright (c) 2007-2009 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:

 //

 #include "swdirectgdiimagesourceimpl.h"

 #include "swdirectgdidriverimpl.h"

 #include <graphics/sgimage_sw.h>

 /**

 Constructs a CSwDirectGdiImageTargetImpl

 @param	aDriver		The driver implementation which created this target.

 */

 CSwDirectGdiImageSourceImpl::CSwDirectGdiImageSourceImpl(CSwDirectGdiDriverImpl& aDriver) :

 	iDriver(aDriver)

 	{	

 	}

 /**

 Destroys a CSwDirectGdiImageSourceImpl.

 @post This image source is removed from the associated driver's list of source images.

 */

 CSwDirectGdiImageSourceImpl::~CSwDirectGdiImageSourceImpl()

 	{

 	iDriver.UnregisterSourceImage(*this);

 	}

 /**

 Two-phase construction of a CDirectGdiImageSourceImpl object.

 @param aImage On success, holds a pointer to the newly-created image.

 @param aDriver The driver to register this image with.

 @param aSgImage The RSgImage which this image will be based upon. 

 @return KErrNone if successful, KErrNoMemory if not enough memory could be allocated, otherwise a return

         value from Construct().

 */

 TInt CSwDirectGdiImageSourceImpl::New(CSwDirectGdiImageSourceImpl*& aImage, CSwDirectGdiDriverImpl& aDriver, const RSgImage& aSgImage)

 	{

 	CSwDirectGdiImageSourceImpl* image = new CSwDirectGdiImageSourceImpl(aDriver);

 	if (!image)

 		return KErrNoMemory;

 	TInt err = image->Construct(aSgImage);

 	if (err == KErrNone)

 		aImage = image;

 	else

 		delete image;

 	return err;

 	}

 /**

 Gets the supplied image structure and sets the internal data.

 @param aSgImage The RSgImage to create the source image from.

 @return KErrNone if successful, KErrNotSupported if the RSgImage doesn't have the required interface,

         otherwise an error from CDirectGdiImageRef::Construct().

 */ 

 TInt CSwDirectGdiImageSourceImpl::Construct(const RSgImage& aSgImage)

 	{	

 	TInt err = CDirectGdiImageRef::Construct(aSgImage);

 	MSgImage_Sw* pImage = NULL;

 	if (err == KErrNone)

 		{		

 		RSgImage image = Image();

 		err = image.GetInterface(pImage);

 		}

 	if (err == KErrNone)

 		{

 		err = iDriver.RegisterSourceImage(*this);

 		}

 	if (err == KErrNone)

 		{

 		iDataBuffer = pImage->DataAddress();

 		iStride = pImage->DataStride();

 		Open();

 		}

 	return err;	

 	}