1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/graphics/graphicsdeviceinterface/directgdi/src/directgdiimagetarget.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,86 @@
     1.4 +// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +#include "directgdidriver.h"
    1.20 +#include <graphics/directgdiimagetarget.h>
    1.21 +#include "directgdipaniccodes.h"
    1.22 +
    1.23 +/**
    1.24 +Default constructor. 
    1.25 +Only for embedding instances of RDirectGdiImageTarget into other classes as data members. 
    1.26 +Before a RDirectGdiImageTarget can be used the other constructor must be called. 
    1.27 +*/
    1.28 +EXPORT_C RDirectGdiImageTarget::RDirectGdiImageTarget()
    1.29 +	: iDriver(NULL), iHandle(KNullHandle)
    1.30 +	{
    1.31 +	}
    1.32 +
    1.33 +/**
    1.34 +Constructor.
    1.35 +
    1.36 +@param 	aDriver The CDirectGdiDriver for this thread.
    1.37 +
    1.38 +@pre 	CDirectGdiDriver object has been initialised from the calling thread.
    1.39 +@post 	This handle class has a pointer to the CDirectGdiDriver object for this
    1.40 +		thread, and is not associated with any DirectGDI adaptation specific resource.
    1.41 +*/
    1.42 +EXPORT_C RDirectGdiImageTarget::RDirectGdiImageTarget(CDirectGdiDriver& aDriver)
    1.43 +	: iDriver(&aDriver), iHandle(KNullHandle)
    1.44 +	{
    1.45 +	}
    1.46 +
    1.47 +/**
    1.48 +Creates a DirectGDI adaptation-specific resource from the given image resource
    1.49 +so it can be used as a target of DirectGDI rendering.
    1.50 +
    1.51 +@param 	aImage The image resource.
    1.52 +
    1.53 +@pre 	The CDirectGdiDriver object has been set. The image resource has been
    1.54 +		fully constructed and created with the correct usage that allows it to
    1.55 +		be used as a DirectGDI target.
    1.56 +@post 	The DirectGDI adaptation-specific resource that is bound to the given
    1.57 +		image resource is created and this handle is now associated with it.
    1.58 +		The reference counter on the image resource is incremented.
    1.59 +
    1.60 +@return KErrNone if successful, KErrArgument if the image resource is not valid,
    1.61 +		KErrAlreadyExists if this handle is already associated with a DirectGDI
    1.62 +		specific resource,  KErrNotSupported if the image resource is not created
    1.63 +		with the correct usage, otherwise one of the system-wide error codes.
    1.64 +*/
    1.65 +EXPORT_C TInt RDirectGdiImageTarget::Create(const RSgImage& aImage)
    1.66 +	{
    1.67 +	GRAPHICS_ASSERT_ALWAYS(iDriver, EDirectGdiPanicImageTargetWithoutDriver);
    1.68 +	return iDriver->CreateImageTarget(*this, aImage);
    1.69 +	}
    1.70 +
    1.71 +/**
    1.72 +Destroys the DirectGDI adaptation-specific resource associated with this handle. 
    1.73 +Calling this method on a handle that is not associated with any DirectGDI 
    1.74 +adaptation-specific resource will do nothing. Once Close() is called, this handle can be reused.
    1.75 +
    1.76 +@pre	The CDirectGdiDriver object for this handle has been set.
    1.77 +@post	The DirectGDI specific resource associated with this handle will be destroyed
    1.78 +		(at any time preferred by the adaptation). This handle is no longer associated
    1.79 +		with a DirectGDI specific resource. The reference counter of the underlying
    1.80 +		image resource is decremented. 
    1.81 +*/
    1.82 +EXPORT_C void RDirectGdiImageTarget::Close()
    1.83 +	{
    1.84 +	if (iHandle != KNullHandle)
    1.85 +		{
    1.86 +		GRAPHICS_ASSERT_ALWAYS(iDriver, EDirectGdiPanicImageTargetWithoutDriver);
    1.87 +		iDriver->CloseImageTarget(*this);
    1.88 +		}
    1.89 +	}