diff -r 000000000000 -r f58d6ec98e88 aknlayoutcompiler/inc/FormulaTree.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/aknlayoutcompiler/inc/FormulaTree.h	Thu Dec 17 09:14:18 2009 +0200
@@ -0,0 +1,83 @@
+/*
+* Copyright (c) 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 FORMULATREE_H
+#define FORMULATREE_H
+
+#include <string>
+#include <vector>
+using namespace std;
+
+class ParseResult;
+
+class FormulaTreeNode
+	{
+public:
+	enum TNodeType
+		{
+		EReal=1,		// Real() = the number
+		EInt,			// Int() = the number
+		ECell,			// Char() = cell name
+		EParent,		// nothing special
+		EParentCell,	// Char() = parent cell name
+		ETableCell,		// Real() = target table
+		EComponent,		// Real() = component id, [0] = cell name
+		EAbsolute,		// Text() = whole thing, [0], [1] = real components, [2] = cell name
+		EUnits,			// Real() = units
+		EConstant,		// Real() = constant
+		EAttribute,		// Int() = attribute
+		EMystery,		// Text() = whole thing, [0], [1] = int components
+		EFunction,		// Text() = function name, [0] = parameter
+		EArithmetic,	// Char() = arithmetic operator, [0], [1] = sub expressions
+		ECondition,		// Text() = comparison operator, [0], [1] = sub expressions
+		EConditional	// no content, [0] = condition, [1] = then expression, [2] = else expression
+		};
+
+public:
+	static FormulaTreeNode* Parse(const string& aFormula);
+	virtual ~FormulaTreeNode();
+
+	int Size() const;
+	FormulaTreeNode& operator[](int aIndex);
+	const FormulaTreeNode& operator[](int aIndex) const;
+	
+	TNodeType Type() const;
+
+	string Text() const;
+	char Char() const;
+	int Int() const;
+	double Real() const;
+
+	FormulaTreeNode(const FormulaTreeNode& aOther);
+	static void Print(const FormulaTreeNode& aNode);
+
+private:
+	FormulaTreeNode(TNodeType aType, const string& aSource, int aStart, int aLen);
+	static FormulaTreeNode* NewTree(const ParseResult& aParse, const string& aFormula);
+	const FormulaTreeNode& operator=(const FormulaTreeNode& aOther);
+
+public:
+	vector<FormulaTreeNode*> iSubNodes;
+
+private:
+	const string& iSource;
+	int iStart;
+	int iLen;
+	TNodeType iType;
+	};
+
+
+#endif