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/*
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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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* This wraps the ICU layout Engine in a CBase class
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* and maps the Symbian structures to ICU structures
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*
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*/
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#ifndef __CICULAYOUTENGINE_H__
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#define __CICULAYOUTENGINE_H__
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// System includes
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#include <e32base.h>
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#include <openfont.h>
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#include <shapeinfo.h>
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#include <graphics/shapeimpl.h>
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#include "ScriptAndLanguageTags.h"
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class SymbianFontInstance;
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// if ICU headers not used define
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#ifndef U_NAMESPACE_USE
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class LayoutEngine;
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#endif
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/**
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Encapsulates the ICU Layout Engine in a CShaper class
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and maps the Symbian objects to ICU objects
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@internalTechnology
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*/
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class CIcuLayoutEngine : public CShaper
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{
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public:
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static CShaper* NewL(CBitmapFont* aBitmapFont, TInt aScript, TInt aLanguage, RHeap* aHeap);
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~CIcuLayoutEngine();
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virtual TInt ShapeText(TShapeHeader*& aOutput, const TInput& aInput, RHeap* aHeapForOutput);
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virtual void* ExtendedInterface (TUid aInterfaceId);
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private:
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CIcuLayoutEngine(TUint32 aScript, TUint32 aLanguage);
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TInt ConstructL(CBitmapFont*, TInt aScript, TInt aLanguage, RHeap* iHeap);
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// leaving version of shaping method
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void IcuShapeTextL(TShapeHeader*& aOutput, const TInput& aInput, RHeap* aHeapForOutput);
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// the client heap pointer passed in during construction
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RHeap* iClientHeap;
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// Open source Icu layout engine
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LayoutEngine* iEngine;
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// Symbian font data
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SymbianFontInstance* iFontInstance;
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// The script which this shaper will shape
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TUint32 iScript;
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//The language which this shaper will shape
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TUint32 iLanguage;
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};
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#endif
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