williamr@2: // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
williamr@2: // All rights reserved.
williamr@2: // This component and the accompanying materials are made available
williamr@4: // under the terms of "Eclipse Public License v1.0"
williamr@2: // which accompanies this distribution, and is available
williamr@4: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
williamr@2: //
williamr@2: // Initial Contributors:
williamr@2: // Nokia Corporation - initial contribution.
williamr@2: //
williamr@2: // Contributors:
williamr@2: //
williamr@2: // Description:
williamr@2: //
williamr@2: 
williamr@2: #ifndef BIDIVISUAL_H_
williamr@2: #define BIDIVISUAL_H_
williamr@2: 
williamr@2: #include <bidi.h>
williamr@2: 
williamr@2: class TBidiLogicalToVisual
williamr@2: /** 
williamr@2: This class is a low-level class for bi-directionally reordering text. It 
williamr@2: allows the re-ordering of text using no leaving functions at all, and provides 
williamr@2: a finer degree of control than TBidiText. However, it should not be used 
williamr@2: without understanding the basics of the Unicode Bi-directional Reordering 
williamr@2: Algorithm. 
williamr@2: @publishedAll
williamr@2: @released
williamr@2: */
williamr@2: 	{
williamr@2: public:
williamr@2: 	enum {KMinCharAvailable = 4};
williamr@2: 
williamr@2: 	IMPORT_C TBidiLogicalToVisual(const TDesC& aText, TBool aRightToLeft,
williamr@2: 		TBidirectionalState::TRunInfo* aRunInfoArray, TInt aRunInfoLength);
williamr@2: 	IMPORT_C TBidiLogicalToVisual(const TDesC& aText,
williamr@2: 		TBidirectionalState::TRunInfo* aRunInfoArray, TInt aRunInfoLength);
williamr@2: 	IMPORT_C TInt Reorder();
williamr@2: 	IMPORT_C void GetVisualLine(TDes& aLine, TInt aStart, TInt aEnd,
williamr@2: 		TChar aTruncationChar);
williamr@2: private:
williamr@2: 	const TDesC& iText;
williamr@2: 	TBool iRightToLeft;
williamr@2: 	TBidirectionalState::TRunInfo* iRunInfoArray;
williamr@2: 	TInt iRunInfoArrayLength;
williamr@2: 	TInt iRuns;
williamr@2: 	TUint32 iSpare2;
williamr@2: 	};
williamr@2: 
williamr@2: #endif