--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/extras/calcsoft/inc/CalcEditline.h	Mon Jan 18 20:20:33 2010 +0200
@@ -0,0 +1,193 @@
+/*
+* Copyright (c) 2002 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:  Helper class used by CalcDocument,CCalcContainer etc., 
+*                TCalcEditLine.
+*                The numerical value and the character sequence of the real 
+*                number are held. Addition of a numerical character sequence 
+*                and which clear operation are performed.
+*
+*/
+
+
+#ifndef     CALCEDITLINE_H
+#define     CALCEDITLINE_H
+
+
+//  INCLUDES
+#include <e32std.h>
+
+
+//  Define maximum charactor number per line
+const TInt KCalcMaxDigits(8);
+const TInt KCalcMaxNumberWidth(11);
+const TInt KCalcMaxEditNumberWidth( 10 );
+
+//  CLASS DEFINITIONS 
+
+/**
+TCalcEditLine is Calculation data class.
+A line data for 'Editor Sub-Pane'
+*/
+class   TCalcEditLine
+    {
+    public:
+        enum TCalcOperatorType
+            {
+            ECalcAdd,
+            ECalcSubtract,
+            ECalcMultiply,
+            ECalcDivide,
+            ECalcEqual,
+			ECalcSqrt,
+			ECalcPercent,
+            ECalcOperatorNone
+            };    
+
+    public:  // Constructors and destructor
+        /**
+        * C++ default constructor.
+        */
+        TCalcEditLine(); 
+        
+        /**
+        * Destructor.
+        */
+        virtual ~TCalcEditLine(); 
+        
+        /**
+        * Copy constructor.
+        */
+        TCalcEditLine(const TCalcEditLine& aEditLine); 
+        
+        /**
+        * Assignment operator
+        */
+        const TCalcEditLine&  operator=(const TCalcEditLine& aEditLine);  
+
+    public:     // New functions
+        /**
+        * Return string of number 
+        * @return String of number.
+        */
+        inline const TPtrC NumberString() const;
+        
+        /**
+        * Clear a line
+        */
+        void AllClear();
+        
+        /**
+        * Delete last 1 digit from a line
+        */
+        void ClearL();
+        
+        /**
+        * Clear number from a line
+        */
+        void ClearOperand();
+        
+        /**
+        * Return number of a line  
+        * @return TReal64 : Operand of a line
+        */
+        TReal64 NumberL() const;
+        
+        /**
+        * Parameter aNumber is set to a line 
+        * @param aNumber 
+        */
+        void SetNumber(TReal64 aNumber);
+        
+        /**
+        * Append a charactor to number.
+        * Leave may occur, KCalcErrEditorSpaceFull.
+        * @param aInput : A input which is Appended 
+        */
+        void AppendL(TChar aInput);
+        
+		/**
+		* Append any character to number before it is 
+		* displayed inthe output sheet.
+		* Leave may occur, KCalcErrEditorSpaceFull.
+        * @param aInput : A char which is Appended 
+        */
+	    void AppendNumberStringL(TChar aChar);
+
+        /**
+        * Change sign of number
+        */
+        void ChangeSignL();
+        
+        /**
+        * If number of editor is "iii.ddd000...", set number "iii.ddd".
+        * Example: 
+        *  Number of editor is "12",  number editor is set "12".
+        *  Number of editor is "12." or "12.000...", number editor is set "12".
+        *  Number of editor is "12.27", number editor is set "12.27".
+        *  Number of editor is "12.27000...", number editor is set "12.27".
+        * @param aLine : current editor
+        */
+        void TrimZeroL();  
+        
+        /**
+        * Return operator type of a line.
+        * @return TCalcOperatorType : ECalcAdd || ECalcSubtract || 
+                                      ECalcMultiply || ECalcDivide ||
+                                      ECalcEqual || ECalcOperatorNone
+        */
+        inline TCalcOperatorType Operator() const;
+        
+        
+        /**
+        * Set operator to a line
+        * @param aType : operator enum
+        */
+        inline void SetOperator(const TCalcOperatorType& aType);
+
+        /**
+        * Check whether buffer of editline is "0" or not. 
+        * @return ETrue :buffer of editline is "0".
+        *         EFalse:buffer of editline is not "0".
+        *         (Ex) If buffer is "0", return ETrue.
+        *              If buffer is "0.0" or "2", return EFalse. 
+        */
+        TBool CheckZeroL() const;
+
+        /**
+        * Changing decimal separator.
+        * @param aOld : Old decimal separator
+        * @param aNew : New decimal separator  
+        */
+        void ChangeDecimal(TChar aOld, TChar aNew);
+         
+
+    private:    // New functions
+        /**
+        * Return count of digits.
+        * @param aNumber : String of number
+        * @return Count of digits. 
+        *         E.g argument aNumber is "-226.89", return value is 5.
+        */
+        TInt NumberDigits() const;
+
+    private:    // Data
+        TBuf<KCalcMaxNumberWidth> iNumber; // Operand of a line
+        TCalcOperatorType   iOperator; // Operator of a line 
+    };
+
+#include "CalcEditLine.inl"
+
+#endif  // __CALCEDITLINE_H__
+
+//  End of File