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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 "directgdidrawableref.h"
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/**
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Destructor. Checks that the reference count is zero to make sure all references to this object have
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been closed properly before it is destroyed.
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@panic DGDIAdapter 44, if the reference count is not zero. The
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driver that created this object is responsible for decrementing the reference count.
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*/
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CDirectGdiDrawableRef::~CDirectGdiDrawableRef()
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{
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GRAPHICS_ASSERT_DEBUG(iRefCount == 0, EDirectGdiPanicDrawableRefDestructorError);
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}
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/**
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Increments the reference count for this object.
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*/
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void CDirectGdiDrawableRef::Open()
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{
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++iRefCount;
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}
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/**
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Decrements the reference count for this object. When the count reaches zero, it deletes itself.
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Therefore no operations should be called on an object of this type after calling DecRefCount().
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@return The decremented open count.
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@panic DGDIAdapter 30, when attempting to decrement a reference count that is zero or less.
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*/
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void CDirectGdiDrawableRef::Close()
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{
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GRAPHICS_ASSERT_DEBUG(iRefCount > 0, EDirectGdiPanicDrawableRefCountError);
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if (--iRefCount == 0)
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{
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delete this;
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}
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}
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