1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/graphics/windowing/windowserver/nga/SERVER/WSOBJIX.H	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,100 @@
     1.4 +// Copyright (c) 1999-2009 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 +// Definition of object index class
    1.18 +// 
    1.19 +//
    1.20 +
    1.21 +#ifndef __WSOBJIX_H__
    1.22 +#define __WSOBJIX_H__
    1.23 +
    1.24 +#include <e32std.h>
    1.25 +#include <e32base.h>
    1.26 +
    1.27 +class CWsObject;
    1.28 +
    1.29 +/**
    1.30 +A simple structure to hold a CWsObject and the associated handle.
    1.31 +
    1.32 +@internalComponent
    1.33 +@released
    1.34 +*/
    1.35 +class TWsObject
    1.36 +	{
    1.37 +public:
    1.38 +	enum
    1.39 +		{
    1.40 +		ESlotMask=0x0000FFFF,			//The handle on the client side uses these 16 bits to store the slot position
    1.41 +		ECountMask=0x7FFF0000,			//These 15 bits are used to keep a unique number (the slot reuse count)
    1.42 +		ETypeMask=ESlotMask,			//The handle on the server side uses these 16 bits to store the type of the object
    1.43 +		ECountPosition=16,
    1.44 +		ECountBits=15,
    1.45 +		ECountInc=1<<ECountPosition,
    1.46 +		ECountWrapAround=1<<ECountBits,
    1.47 +		};
    1.48 +public:
    1.49 +	inline TWsObject(CWsObject* aObject,TInt aHandle);
    1.50 +public:
    1.51 +	CWsObject* iObject;
    1.52 +	TUint iHandle;
    1.53 +	};
    1.54 +
    1.55 +/**
    1.56 +An array of CWsObject instances and their handles. 
    1.57 +
    1.58 +Each client session maintains a list of the objects it owns.
    1.59 +
    1.60 +Note that the first item in the iObjectArray array is a dummy item. This is because part of the 
    1.61 +handle is used as an index in the array and we want to avoid index 0 because a null handle has a special
    1.62 +meaning.
    1.63 +
    1.64 +@see CWsClient
    1.65 +@internalComponent
    1.66 +@released
    1.67 +*/
    1.68 +class CWsObjectIx : public CBase
    1.69 +	{
    1.70 +public:
    1.71 +	CWsObjectIx();
    1.72 +	~CWsObjectIx();
    1.73 +	void ConstructL();
    1.74 +	TInt AddL(CWsObject* anObj);
    1.75 +	void Remove(const TWsObject* aObject);
    1.76 +	void Remove(CWsObject* anObj);
    1.77 +	CWsObject* HandleToObject(TInt aHandle) const;
    1.78 +	inline const CWsObject* At(TInt aPos) const;
    1.79 +	const TWsObject* FirstObject() const;
    1.80 +	TInt At(const CWsObject* anObj);
    1.81 +	void Tidy();
    1.82 +	TInt Count() const;		// Count of non NULL objects in the array
    1.83 +	TInt Length() const;	// Length of array including empty slots
    1.84 +private:
    1.85 +	CArrayFixFlat<TWsObject> iObjectArray;
    1.86 +	TInt iNewObjectCount;
    1.87 +	};
    1.88 +
    1.89 +
    1.90 +//
    1.91 +// inlines			//
    1.92 +//
    1.93 +
    1.94 +//
    1.95 +// TWsObject
    1.96 +//
    1.97 +inline TWsObject::TWsObject(CWsObject* aObject,TInt aHandle) :iObject(aObject), iHandle(aHandle) {}
    1.98 +//
    1.99 +// CWsObjectIx
   1.100 +//
   1.101 +inline const CWsObject* CWsObjectIx::At(TInt aPos) const
   1.102 +	{return iObjectArray[aPos].iObject;}
   1.103 +#endif