fontservices/textshaperplugin/source/IcuLayoutEngine.h
changeset 0 1fb32624e06b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fontservices/textshaperplugin/source/IcuLayoutEngine.h	Tue Feb 02 02:02:46 2010 +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