--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicsdeviceinterface/directgdiadaptation/cmnsrc/directgdidrawableref.cpp	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,54 @@
+// 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;
+		}
+	}