--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/textrendering/textformatting/tagma/TmChunkInterp.h	Fri Jun 04 10:37:54 2010 +0100
@@ -0,0 +1,77 @@
+/*
+* Copyright (c) 2002-2009 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: 
+*
+*/
+
+
+#ifndef TMCHUNKINTERP_H_
+#define TMCHUNKINTERP_H_
+
+#include "TMINTERP.H"
+
+/**
+ * Interpreter for finding text chunks adjoining a given document position.
+ * @internalComponent
+ */
+class TTmChunkInterpreter : public TTmInterpreter
+	{
+public:
+	enum TContainment
+		{
+		ENotInChunk = 0,
+		ELeftEdgeOfChunk = 1,
+		ERightEdgeOfChunk = 2,
+		EMiddleOfChunk = 3
+		};
+	TTmChunkInterpreter(const CTmTextLayout& aTextLayout);
+	/**
+	 * Sets the iteration to the leftmost chunk of the line containing aDocPos.
+	 * @return
+	 *		ETrue if this succeeded, EFalse if the line is not formatted, or
+	 *		contains no text.
+	 */
+	TBool ChunkSetToLeftOfLine(const TTmDocPosSpec& aDocPos);
+	/**
+	 * Returns the first character position in the current chunk.
+	 */
+	TInt ChunkStart() const { return iStart; }
+	/**
+	 * Returns one past the last character position in the current chunk.
+	 */
+	TInt ChunkEnd() const { return iEnd; }
+	/**
+	 * Returns ETrue if the current chunk is displayed right-to-left.
+	 */
+	TBool ChunkRightToLeft() const { return iRightToLeft; }
+	/**
+	 * Returns whether aDocPos is in the chunk or not, and if so where in the
+	 * chunk it is.
+	 */
+	TContainment ChunkContainsPos(const TTmDocPosSpec& aDocPos) const;
+	/**
+	 * Moves to the next chunk right within this line.
+	 * @return
+	 *		ETrue if there is such a chunk, EFalse if the end of the line was
+	 *		reached, so no chunk could be found.
+	 */
+	TBool ChunkNext();
+
+private:
+	TInt iStart;
+	TInt iEnd;
+	TBool iRightToLeft;
+	};
+
+#endif