// 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 "directgdidrawableref.h"

/**

Destructor. Checks that the reference count is zero to make sure all references to this object have

been closed properly before it is destroyed.

@panic DGDIAdapter 44, if the reference count is not zero. The

driver that created this object is responsible for decrementing the reference count.

 */

CDirectGdiDrawableRef::~CDirectGdiDrawableRef()

	{

	GRAPHICS_ASSERT_DEBUG(iRefCount == 0, EDirectGdiPanicDrawableRefDestructorError);

	}

/**

Increments the reference count for this object.

*/

void CDirectGdiDrawableRef::Open()

	{

	++iRefCount;

	}

/**

Decrements the reference count for this object. When the count reaches zero, it deletes itself.

Therefore no operations should be called on an object of this type after calling DecRefCount().

@return The decremented open count.

@panic DGDIAdapter 30, when attempting to decrement a reference count that is zero or less.

 */

void CDirectGdiDrawableRef::Close()

	{

	GRAPHICS_ASSERT_DEBUG(iRefCount > 0, EDirectGdiPanicDrawableRefCountError);

	if (--iRefCount == 0)

		{

		delete this;

		}

	}