--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/windowing/windowserver/nga/SERVER/WSOBJIX.H	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,100 @@
+// Copyright (c) 1999-2009 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:
+// Definition of object index class
+// 
+//
+
+#ifndef __WSOBJIX_H__
+#define __WSOBJIX_H__
+
+#include <e32std.h>
+#include <e32base.h>
+
+class CWsObject;
+
+/**
+A simple structure to hold a CWsObject and the associated handle.
+
+@internalComponent
+@released
+*/
+class TWsObject
+	{
+public:
+	enum
+		{
+		ESlotMask=0x0000FFFF,			//The handle on the client side uses these 16 bits to store the slot position
+		ECountMask=0x7FFF0000,			//These 15 bits are used to keep a unique number (the slot reuse count)
+		ETypeMask=ESlotMask,			//The handle on the server side uses these 16 bits to store the type of the object
+		ECountPosition=16,
+		ECountBits=15,
+		ECountInc=1<<ECountPosition,
+		ECountWrapAround=1<<ECountBits,
+		};
+public:
+	inline TWsObject(CWsObject* aObject,TInt aHandle);
+public:
+	CWsObject* iObject;
+	TUint iHandle;
+	};
+
+/**
+An array of CWsObject instances and their handles. 
+
+Each client session maintains a list of the objects it owns.
+
+Note that the first item in the iObjectArray array is a dummy item. This is because part of the 
+handle is used as an index in the array and we want to avoid index 0 because a null handle has a special
+meaning.
+
+@see CWsClient
+@internalComponent
+@released
+*/
+class CWsObjectIx : public CBase
+	{
+public:
+	CWsObjectIx();
+	~CWsObjectIx();
+	void ConstructL();
+	TInt AddL(CWsObject* anObj);
+	void Remove(const TWsObject* aObject);
+	void Remove(CWsObject* anObj);
+	CWsObject* HandleToObject(TInt aHandle) const;
+	inline const CWsObject* At(TInt aPos) const;
+	const TWsObject* FirstObject() const;
+	TInt At(const CWsObject* anObj);
+	void Tidy();
+	TInt Count() const;		// Count of non NULL objects in the array
+	TInt Length() const;	// Length of array including empty slots
+private:
+	CArrayFixFlat<TWsObject> iObjectArray;
+	TInt iNewObjectCount;
+	};
+
+
+//
+// inlines			//
+//
+
+//
+// TWsObject
+//
+inline TWsObject::TWsObject(CWsObject* aObject,TInt aHandle) :iObject(aObject), iHandle(aHandle) {}
+//
+// CWsObjectIx
+//
+inline const CWsObject* CWsObjectIx::At(TInt aPos) const
+	{return iObjectArray[aPos].iObject;}
+#endif