diff -r 000000000000 -r bde4ae8d615e os/textandloc/fontservices/textshaperplugin/source/IcuLayoutEngine.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/os/textandloc/fontservices/textshaperplugin/source/IcuLayoutEngine.h Fri Jun 15 03:10:57 2012 +0200 @@ -0,0 +1,76 @@ +/* +* 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: +* This wraps the ICU layout Engine in a CBase class +* and maps the Symbian structures to ICU structures +* +*/ + + +#ifndef __CICULAYOUTENGINE_H__ +#define __CICULAYOUTENGINE_H__ + +// System includes +#include <e32base.h> + +#include <openfont.h> +#include <shapeinfo.h> +#include <graphics/shapeimpl.h> +#include "ScriptAndLanguageTags.h" + +class SymbianFontInstance; + +// if ICU headers not used define +#ifndef U_NAMESPACE_USE +class LayoutEngine; +#endif + +/** +Encapsulates the ICU Layout Engine in a CShaper class +and maps the Symbian objects to ICU objects +@internalTechnology +*/ +class CIcuLayoutEngine : public CShaper + { +public: + + static CShaper* NewL(CBitmapFont* aBitmapFont, TInt aScript, TInt aLanguage, RHeap* aHeap); + ~CIcuLayoutEngine(); + + virtual TInt ShapeText(TShapeHeader*& aOutput, const TInput& aInput, RHeap* aHeapForOutput); + virtual void* ExtendedInterface (TUid aInterfaceId); + +private: + CIcuLayoutEngine(TUint32 aScript, TUint32 aLanguage); + TInt ConstructL(CBitmapFont*, TInt aScript, TInt aLanguage, RHeap* iHeap); + + // leaving version of shaping method + void IcuShapeTextL(TShapeHeader*& aOutput, const TInput& aInput, RHeap* aHeapForOutput); + + // the client heap pointer passed in during construction + RHeap* iClientHeap; + + // Open source Icu layout engine + LayoutEngine* iEngine; + + // Symbian font data + SymbianFontInstance* iFontInstance; + + // The script which this shaper will shape + TUint32 iScript; + + //The language which this shaper will shape + TUint32 iLanguage; + }; +#endif