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// Copyright (c) 2005-2009 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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// Utility class for indexing instances of CWsGraphicDrawer
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//
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//
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#ifndef __WSGRAPHICDRAWERARRAY_H__
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#define __WSGRAPHICDRAWERARRAY_H__
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#include <e32base.h>
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#include <graphics/wsgraphicdrawer.h>
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class CWsGraphicDrawerArray: public CBase
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/** An index of CWsGraphicDrawer instances
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A CWsGraphicDrawer can be in many such indexes, as an index does not imply ownership
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@publishedPartner
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@released
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*/ {
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public:
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//Placeholder for transacion record
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struct XRollBackBase;
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//transactional manipulation methods that are deprecated because they leak
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IMPORT_C void AddLC(CWsGraphicDrawer* aDrawer);
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IMPORT_C TInt SwapLC(CWsGraphicDrawer* aDrawer);
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//non-transactional manipulation
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IMPORT_C TInt Remove(const TGraphicDrawerId& aId);
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IMPORT_C TInt Add(CWsGraphicDrawer* aDrawer);
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IMPORT_C TInt Swap(CWsGraphicDrawer* aDrawer);
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//safe transactional methods
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//The array should not be Compressed() during the transaction period to ensure that the Remove RollBack operation will always succeed.
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IMPORT_C XRollBackBase* AddTLC(CWsGraphicDrawer* aDrawer);
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IMPORT_C XRollBackBase* SwapTLC(CWsGraphicDrawer* aDrawer);
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IMPORT_C XRollBackBase* RemoveTLC(const TGraphicDrawerId& aId);
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IMPORT_C void CommitP(XRollBackBase*);
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//Query
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IMPORT_C const CWsGraphicDrawer* ResolveGraphic(const TGraphicDrawerId& aId) const;
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IMPORT_C TBool IsEmpty() const;
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//Other non-transactional methods
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IMPORT_C TInt RemoveAndDestroy(const TGraphicDrawerId& aId);
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IMPORT_C TInt RemoveAll(const MWsClient& aOwner);
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IMPORT_C TInt RemoveAndDestroyAll(const MWsClient& aOwner);
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IMPORT_C void Close();
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IMPORT_C void ResetAndDestroy();
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private:
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NONSHARABLE_STRUCT(TGraphic)
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{
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TGraphicDrawerId iId;
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CWsGraphicDrawer* iDrawer;
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};
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RArray<TGraphic> iArray;
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CWsGraphicDrawer* SwapIn(CWsGraphicDrawer* aDrawer);
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TInt IndexOf(const TGraphicDrawerId& aId) const;
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static TInt GraphicDrawerCompare(const TGraphic& aFirst,const TGraphic& aSecond);
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private:
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//Transactional unwinding support classes
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class XAddRollBack;
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friend class XAddRollBack;
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class XSwapRollBack;
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friend class XSwapRollBack;
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class XRemoveRollBack;
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friend class XRemoveRollBack;
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class testArrayValidator;
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friend class testArrayValidator;
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};
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#endif //#ifndef __WSGRAPHICDRAWERARRAY_H__
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