sl@0: /*
sl@0: * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: * This wraps the ICU layout Engine in a CBase class
sl@0: * and maps the Symbian structures to ICU structures
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: #ifndef __CICULAYOUTENGINE_H__
sl@0: #define __CICULAYOUTENGINE_H__
sl@0: 
sl@0: // System includes
sl@0: #include <e32base.h>
sl@0: 
sl@0: #include <openfont.h>
sl@0: #include <shapeinfo.h>
sl@0: #include <graphics/shapeimpl.h>
sl@0: #include "ScriptAndLanguageTags.h"
sl@0: 
sl@0: class SymbianFontInstance;
sl@0: 
sl@0: // if ICU headers not used define
sl@0: #ifndef U_NAMESPACE_USE
sl@0: class LayoutEngine;
sl@0: #endif
sl@0: 
sl@0: /**
sl@0: Encapsulates the ICU Layout Engine in a CShaper class
sl@0: and maps the Symbian objects to ICU objects
sl@0: @internalTechnology 
sl@0: */
sl@0: class CIcuLayoutEngine : public CShaper
sl@0: 	{
sl@0: public:
sl@0: 
sl@0: 	static CShaper* NewL(CBitmapFont* aBitmapFont, TInt aScript, TInt aLanguage, RHeap* aHeap);
sl@0: 	~CIcuLayoutEngine();
sl@0: 	
sl@0: 	virtual TInt ShapeText(TShapeHeader*& aOutput, const TInput& aInput, RHeap* aHeapForOutput);
sl@0: 	virtual void* ExtendedInterface (TUid aInterfaceId);
sl@0: 		
sl@0: private:
sl@0: 	CIcuLayoutEngine(TUint32 aScript, TUint32 aLanguage);
sl@0: 	TInt  ConstructL(CBitmapFont*, TInt aScript, TInt aLanguage, RHeap* iHeap);
sl@0: 
sl@0: 	// leaving version of shaping method
sl@0: 	void  IcuShapeTextL(TShapeHeader*& aOutput, const TInput& aInput, RHeap* aHeapForOutput);
sl@0: 	
sl@0: 	// the client heap pointer passed in during construction
sl@0: 	RHeap* iClientHeap;
sl@0: 
sl@0: 	// Open source Icu layout engine
sl@0: 	LayoutEngine* iEngine;	 
sl@0: 	
sl@0: 	// Symbian font data
sl@0: 	SymbianFontInstance* iFontInstance;
sl@0: 	
sl@0: 	// The script which this shaper will shape
sl@0: 	TUint32 iScript;
sl@0: 	
sl@0: 	//The language which this shaper will shape
sl@0: 	TUint32 iLanguage;
sl@0: 	};
sl@0: #endif