sl@0: // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #include "swdirectgdiimagetargetimpl.h"
sl@0: #include "swdirectgdidriverimpl.h"
sl@0: #include <bitdraw.h>
sl@0: 
sl@0: /**
sl@0: Constructs a CSwDirectGdiImageTargetImpl.
sl@0: @param	aDriver		The driver implementation which created this target.
sl@0: @param	aDrawDevice A pointer to the draw device associated with this target. 
sl@0: 				   This class takes ownership of aDrawDevice.
sl@0: */
sl@0: CSwDirectGdiImageTargetImpl::CSwDirectGdiImageTargetImpl(CSwDirectGdiDriverImpl& aDriver, CFbsDrawDevice* aDrawDevice):
sl@0: 	iDriver(aDriver),
sl@0: 	iDrawDevice(aDrawDevice)	
sl@0: 	{	
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Destroys a CSwDirectGdiImageTargetImpl.
sl@0: @post This image target is removed from the associated driver's list of target images.
sl@0: */
sl@0: CSwDirectGdiImageTargetImpl::~CSwDirectGdiImageTargetImpl()
sl@0: 	{
sl@0: 	iDriver.UnregisterTargetImage(*this);
sl@0: 	delete iDrawDevice;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Two-phase construction of a CSwDirectGdiImageTarget object.
sl@0: 
sl@0: @param aImage On success, holds a pointer to the newly-created image.
sl@0: @param aDriver The driver to register this image with.
sl@0: @param aDrawDevice The draw device to associate with this target. This target will take ownership
sl@0: of the draw device if this method returns without an error, if the method returns with an error
sl@0: then the caller still owns the draw device.
sl@0: @param aSgImage The RSgImage which this image will be based upon.
sl@0: 
sl@0: @return KErrNone if successful, KErrNoMemory if not enough memory could be allocated, otherwise a return
sl@0:         value from Construct().
sl@0: */
sl@0: TInt CSwDirectGdiImageTargetImpl::New(CSwDirectGdiImageTargetImpl*& aImage, CSwDirectGdiDriverImpl& aDriver, CFbsDrawDevice* aDrawDevice, const RSgImage& aSgImage)
sl@0: 	{
sl@0: 	CSwDirectGdiImageTargetImpl* image = new CSwDirectGdiImageTargetImpl(aDriver, aDrawDevice);
sl@0: 	if (!image)
sl@0: 		return KErrNoMemory;
sl@0: 	TInt err = image->Construct(aSgImage);
sl@0: 	if (err == KErrNone)
sl@0: 		aImage = image;
sl@0: 	else
sl@0: 		{
sl@0: 		image->iDrawDevice = NULL;
sl@0: 		delete image;
sl@0: 		}
sl@0: 	return err;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Obtains a draw device pointer that is associated with this target
sl@0: @return A pointer to the draw device.
sl@0: */
sl@0: CFbsDrawDevice* CSwDirectGdiImageTargetImpl::DrawDevice() const
sl@0: 	{
sl@0: 	return iDrawDevice;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Gets the supplied image structure and sets the internal data. If it fails for any reason, it will
sl@0: delete itself.
sl@0: 
sl@0: @param aSgImage The RSgImage to create the source image from.
sl@0: @return KErrNone if successful, KErrNotSupported if the RSgImage doesn't have the required interface,
sl@0:         otherwise an error from CDirectGdiImageRef::Construct().
sl@0: */ 
sl@0: TInt CSwDirectGdiImageTargetImpl::Construct(const RSgImage& aSgImage)
sl@0: 	{	
sl@0: 	TInt err = CDirectGdiImageRef::Construct(aSgImage);
sl@0: 	
sl@0: 	if (err == KErrNone)
sl@0: 		{		
sl@0: 		err = iDriver.RegisterTargetImage(*this);
sl@0: 		}
sl@0: 	
sl@0: 	if (err == KErrNone)
sl@0: 		{
sl@0: 		Open();
sl@0: 		}
sl@0: 	
sl@0: 	return err;	
sl@0: 	}