extras/calcsoft/src/CalcDoc.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 21 Jun 2010 15:42:09 +0300
branchRCL_3
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Revision: 201023 Kit: 2010125
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/*
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* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0""
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Document class, CCalcDocument
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*                Derived from CEikDocument
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*                The history of inputted data is held.
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*                The memory of four-arithmetical-operations operation 
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*                or a calculation result is held.
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*                The last result and memory are saved at a file and 
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*                it restores.
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*
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*/
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// INCLUDE FILES  
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#include    "CalcDoc.h"
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#include    "CalcEditline.h"
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#include    "CalcAppUi.h"
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#include    "CalcApp.h"
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#include	"CalcEnv.h"
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#include    "CalcHistory.h"
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#include	"e32math.h"
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#include <e32cmn.h>
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#include <s32file.h>
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// CONSTANTS
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const TReal64 KCalcDefaultMemory(0.0);
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const TReal64 KCalcDefaultLastResult(0.0);
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const TReal64 KCalcDefaultZero(1E-12);
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_LIT( KCalculatorFilename,"Calcsoft.ini");
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_LIT(KDelimiter, ":");
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// ================= MEMBER FUNCTIONS =======================
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// Two-phased constructor.
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CCalcDocument* CCalcDocument::NewL
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                (CEikApplication& aApp) 
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    {
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    CCalcDocument* self = new (ELeave) CCalcDocument(aApp);
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    CleanupStack::PushL(self);
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    self->ConstructL();
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    CleanupStack::Pop(self);
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    return self;
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    }
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// Destructor
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CCalcDocument::~CCalcDocument()
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    {
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    delete iHistory;
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    }
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// ---------------------------------------------------------
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// CCalcDocument::CalculateAndAddHistoryL
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// This function is called when State is changed to State3 or State5. 
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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TReal64 CCalcDocument::CalculateAndAddHistoryL
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                   (TReal64 aOperand,
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                    const TCalcEditLine& aLine)
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    {
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	iProvisionalResult = CalculateL(aOperand, aLine.Operator()); 
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	iHistory->Add(aLine);       // Add a line to history.	
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	return iProvisionalResult;	
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    }
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// ---------------------------------------------------------
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// CCalcDocument::CalculateAndNoHistoryL
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// This function is called when the calculations is not
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// written to the Outputsheet (sqrt and percent in some cases).
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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TReal64 CCalcDocument::CalculateAndNoHistoryL
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                   (TReal64 aOperand,
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                    const TCalcEditLine& aLine)
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	{
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	TReal64 result = CalculateL(aOperand, aLine.Operator()); 
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	return result;
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	}
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// ---------------------------------------------------------
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// CCalcDocument::CalculateAndModifyHistoryL
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// This function is called when the output needs to be edited
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// before it is displayed in the Outputsheet. This function 
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// may call the CalculateL twice, because it may need to
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// calculate the percent first.
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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TReal64 CCalcDocument::CalculateAndModifyHistoryL
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                   (TReal64 aOperand,
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                    TCalcEditLine& aLine,
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					TCalcEditLine::TCalcOperatorType aOperator)
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	{
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	if (aOperator == TCalcEditLine::ECalcMultiply)
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		iProvisionalResult = CalculateL(aOperand, aLine.Operator()); 
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	else
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		{
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		TReal64 iTempResult = CalculateL(aOperand, aLine.Operator()); 
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		iProvisionalResult = CalculateL(iTempResult, aOperator);
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		}
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	aLine.SetOperator(aOperator);
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	// Get the percent character from iCalcAppEnv (it uses the resource
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	// file to get the character).
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	TChar character((iCalcAppEnv->OutSheetOperator(TCalcEditLine::ECalcPercent))[0]);
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	aLine.AppendNumberStringL(character); // Add percent to the line
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	iHistory->Add(aLine);       // Add a line to history.	
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	return iProvisionalResult;
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	}
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// ---------------------------------------------------------
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// CCalcDocument::AddEqualLineAndUpdateLastResult
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// This is called when "Equal" command is selected. 
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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void CCalcDocument::AddEqualLineAndUpdateLastResultL()
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    {
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    TCalcEditLine line;
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    line.SetOperator(TCalcEditLine::ECalcEqual);
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    line.SetNumber(iProvisionalResult);
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    iHistory->Add(line);         // Add a line to history.
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    iLastResult = iProvisionalResult;
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    SaveStateL();
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    }
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// ---------------------------------------------------------
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// CCalcDocument::AddEmptyLine
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// Add a empty line
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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void CCalcDocument::AddEmptyLine()
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    {
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    TCalcEditLine line;
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    iHistory->Add(line);       
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    }
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// ---------------------------------------------------------
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// CCalcDocument::MemorySave
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// Save a memory from value of current editor.
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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void CCalcDocument::MemorySaveL
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                   (TReal64 aNewMemory)
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    {
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    iMemory = aNewMemory;
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    SaveStateL();
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    }
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// ---------------------------------------------------------
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// CCalcDocument::HasMemory
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// Check memory non-zero.
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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TBool CCalcDocument::HasMemory() const
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    {
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    return (iMemory != 0.0);
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    }
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// ---------------------------------------------------------
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// CCalcDocument::Memory
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// Return memory.
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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TReal64 CCalcDocument::Memory() const
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    {
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    return (iMemory);
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    }
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// ---------------------------------------------------------
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// CCalcDocument::MemoryClear
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// Clear memory.
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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void CCalcDocument::MemoryClearL()
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    {
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    iMemory = 0.0;
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    SaveStateL(); 	
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    }
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// ----------------------------------------------------
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// CCalcDocument::LastResult
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// Return Last result.
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// (other items were commented in a header).
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// ----------------------------------------------------
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//
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TReal64 CCalcDocument::LastResult() const
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    {
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    return (iLastResult);
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    }
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// ----------------------------------------------------
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// CCalcDocument::ProvisionalResult
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// Return provisional result
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// (other items were commented in a header).
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// ----------------------------------------------------
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//
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TReal64 CCalcDocument::ProvisionalResult() const
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    {
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    return iProvisionalResult;
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    }
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// ----------------------------------------------------
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// CCalcDocument::History
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// Return CCalcHistory class.
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// (other items were commented in a header).
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// ----------------------------------------------------
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//
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   229
CCalcHistory* CCalcDocument::History() const
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   230
    {
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parents:
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   231
    return iHistory;
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parents:
diff changeset
   232
    }
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parents:
diff changeset
   233
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parents:
diff changeset
   234
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parents:
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   235
// C++ default constructor can NOT contain any code, that
3ee3dfdd8d69 Revision: 201001
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parents:
diff changeset
   236
// might leave.
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parents:
diff changeset
   237
//
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parents:
diff changeset
   238
CCalcDocument::CCalcDocument
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parents:
diff changeset
   239
               (CEikApplication& aApp) 
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parents:
diff changeset
   240
              : CEikDocument(aApp)
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parents:
diff changeset
   241
    {
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parents:
diff changeset
   242
    }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   243
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parents:
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   244
// Second phase constructor.
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parents:
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   245
void CCalcDocument::ConstructL()
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parents:
diff changeset
   246
    {
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parents:
diff changeset
   247
    iHistory = new (ELeave) CCalcHistory();
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parents:
diff changeset
   248
    }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   249
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   250
// ---------------------------------------------------------
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parents:
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   251
// CCalcDocument::CalculateL
3ee3dfdd8d69 Revision: 201001
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parents:
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   252
// Calculate result
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parents:
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   253
// Leave may occur, causes KErrOverflow or KErrDivideByZero.
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parents:
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   254
// (other items were commented in a header).
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   255
// ---------------------------------------------------------
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parents:
diff changeset
   256
//
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   257
TReal64 CCalcDocument::CalculateL
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   258
        (TReal64 aOperand,
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   259
         TCalcEditLine::TCalcOperatorType aOperator) 
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   260
    {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   261
    TReal64  result(iProvisionalResult);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   262
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   263
    switch (aOperator)
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   264
        {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   265
        case  TCalcEditLine::ECalcAdd:
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   266
            {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   267
            result += aOperand;
16
99b535de1dda Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   268
            if( Abs(result)<= KCalcDefaultZero )
99b535de1dda Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   269
            	{
99b535de1dda Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   270
            	result = 0;
99b535de1dda Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   271
            	}
0
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   272
            break;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   273
            }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   274
        case  TCalcEditLine::ECalcSubtract:
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   275
            {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   276
            result -= aOperand;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   277
            if( Abs(result)<= KCalcDefaultZero )
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   278
            	{
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   279
            	result = 0;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   280
            	}
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   281
            break;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   282
            }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   283
        case  TCalcEditLine::ECalcMultiply:
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   284
            {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   285
            result *= aOperand;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   286
            break;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   287
            }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   288
        case  TCalcEditLine::ECalcDivide:
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   289
            {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   290
            if ( aOperand == 0 )
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   291
                {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   292
                iCCalcView->UpdateState( CCalcView::EOperator );
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   293
                User::Leave(KErrDivideByZero); //  Error causes
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   294
                }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   295
            else
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   296
                {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   297
                result /= aOperand;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   298
                }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   299
            break;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   300
            }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   301
		case TCalcEditLine::ECalcSqrt:
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   302
			{
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   303
			if ( aOperand < 0 )
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   304
				{
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   305
                User::Leave(KErrNotSupported); //  Error causes
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   306
                }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   307
			else
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   308
				Math::Sqrt(result, aOperand);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   309
			break;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   310
			}
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   311
		case TCalcEditLine::ECalcPercent:
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   312
			{
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   313
			result = (result * aOperand) / 100;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   314
			break;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   315
			}
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   316
        case  TCalcEditLine::ECalcOperatorNone:
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   317
            {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   318
            result = aOperand;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   319
            break;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   320
            }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   321
        default:
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   322
            {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   323
            break;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   324
            }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   325
        }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   326
    //  Check Result. If overflow, Leave occurs.
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   327
    CheckResultL(&result);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   328
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   329
    // Overflow do not occur
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   330
    return  result;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   331
    }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   332
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   333
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   334
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   335
// CCalcDocument::CheckResultL
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   336
// Check overflow and underflow  
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   337
// Leave may occur, causes KErrOverflow.
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   338
// (other items were commented in a header).
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   339
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   340
//
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   341
void CCalcDocument::CheckResultL
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
                   (TReal64* aResult)    
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
    {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
    // Set data format 
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
    TRealFormat realFormat(KCalcMaxNumberWidth, KCalcMaxDigits);  
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
    if ( *aResult >= 0 )
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
        {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
        realFormat.iWidth--;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
        }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
    realFormat.iType = KRealFormatNoExponent;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
    realFormat.iTriLen = 0;  //  Delimit character is nothing
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
    TLocale locale;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
    TChar separator(locale.DecimalSeparator());
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
    
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
    realFormat.iPoint = separator;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
    TBuf<KCalcMaxNumberWidth> buffer;  
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
    TInt code = buffer.Num(*aResult, realFormat);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
    
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
    if(KErrOverflow == code || KErrUnderflow == code)
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
	    {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
	    TRealFormat realFormat(KCalcMaxNumberWidth);  
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
	    if ( *aResult >= 0 )
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
	        {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
	        realFormat.iWidth--;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
	        }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
	    realFormat.iType = KRealFormatExponent;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
	    realFormat.iPlaces = 3;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
	    realFormat.iTriLen = 0;  //  Delimit character is nothing
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
	    TLocale locale;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
	    TChar separator(locale.DecimalSeparator());
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
	    
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
	    realFormat.iPoint = separator;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
	    TBuf<KCalcMaxNumberWidth> buffer;  
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
	    code = buffer.Num(*aResult, realFormat);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
	    }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
	
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
	switch (code)
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
        {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
        case KErrOverflow:
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
            {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
            User::Leave(KErrOverflow);  
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
            break;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
            }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
        case KErrUnderflow:
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
            {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
            *aResult = 0.0;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
            break;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
            }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
        default:
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
            {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
            break;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
            }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
        }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
   
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
    }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
// CCalcDocument::ExternalizeL
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
// Externalising of the last result and memory.
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
// (other items were commented in a header).
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
//
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
void CCalcDocument::ExternalizeL
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
        (RWriteStream& aStream) const 
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
    {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
    aStream.WriteReal64L(iLastResult);  // Write last result
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
    aStream.WriteReal64L(iMemory);      // Write memory
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
    }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
// CCalcDocument::InternalizeL
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
// Internalising of the last result and memory.
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
// (other items were commented in a header).
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
//
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
void CCalcDocument::InternalizeL
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
        (RReadStream& aStream) 
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
    {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
    iLastResult = aStream.ReadReal64L();    // Read last result
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
    iMemory = aStream.ReadReal64L();        // Read memory
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
    // If read value is out of range, 
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
    // memory is replaced to default one.
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
    TRAPD(error, CheckResultL(&iMemory));
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
    if (error == KErrOverflow)
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
        {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
        iMemory = KCalcDefaultMemory;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
        }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
    // If read value is out of range, 
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
    // last result is replaced to default one.
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
    TRAP(error, CheckResultL(&iLastResult));
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
    if (error == KErrOverflow)
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
        {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
        iLastResult = KCalcDefaultLastResult;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
        }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
    }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
// CCalcDocument::CreateAppUiL
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
// This function is called when Calculator application is opened. 
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
// (other items were commented in a header).
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
//
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
CEikAppUi* CCalcDocument::CreateAppUiL()
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
    {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
    return new (ELeave) CCalcAppUi;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
    }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
// CCalcDocument::SaveStateL
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
// Store memory and last result
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
// (other items were commented in a header).
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
//
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
void CCalcDocument::SaveStateL()
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
{
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
		RFileWriteStream out;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
		RFs fileSession;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
			
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
		User::LeaveIfError(fileSession.Connect());
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
    	CleanupClosePushL(fileSession);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
    
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
    	TFileName filePath;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
		TBuf<1> tempDes;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
		TChar driveChar;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
	   	
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
    	User::LeaveIfError(fileSession.PrivatePath(filePath));
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
    	fileSession.DriveToChar(KDefaultDrive, driveChar);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
    	tempDes.Append(driveChar);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
    	filePath.Insert(0,KDelimiter);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
    	filePath.Insert(0,tempDes);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
    	filePath.Append(KCalculatorFilename);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
    	
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
    	TInt err( out.Replace( fileSession, filePath,EFileWrite ) );
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
	
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
	if( !err )
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
		{
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
		TRAP( err, ExternalizeL( out ) );
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
	
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
		out.Close();
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
		}
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
		  
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
  	CleanupStack::PopAndDestroy();
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
  		
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
}
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   491
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   492
 // ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   493
// CCalcDocument::LoadStateL
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   494
// Restore memory and last result
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   495
// This function is called when document file exists. 
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   496
// (other items were commented in a header).
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   497
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   498
//   
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   499
    void CCalcDocument::LoadStateL()
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   500
    {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   501
    	RFileReadStream in;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   502
    	RFs fileSession;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   503
    		
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   504
    	User::LeaveIfError(fileSession.Connect());
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   505
    	CleanupClosePushL(fileSession);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   506
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   507
		TFileName filePath;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   508
		TBuf<1> tempDes;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   509
		TChar driveChar;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   510
    	User::LeaveIfError(fileSession.PrivatePath(filePath));
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   511
    	fileSession.DriveToChar(KDefaultDrive, driveChar);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   512
    	tempDes.Append(driveChar);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   513
    	filePath.Insert(0,KDelimiter);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   514
    	filePath.Insert(0,tempDes);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   515
    	filePath.Append(KCalculatorFilename);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   516
  		
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   517
		TInt err( in.Open( fileSession, filePath,
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   518
			EFileRead ) );
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   519
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   520
	if( !err )
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   521
		{
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   522
		TRAPD(readErr,InternalizeL( in ) );
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   523
		
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   524
		if ( readErr )
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   525
        {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   526
        // Internalizing fails.
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   527
        iMemory = KCalcDefaultMemory;         // Reset memoey
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   528
        iLastResult = KCalcDefaultLastResult; // Reset last result
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   529
        }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   530
        
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   531
		in.Close();
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   532
		}
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   533
			CleanupStack::PopAndDestroy();
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   534
		
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   535
        SetChanged(EFalse);
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   536
	
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   537
    }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   538
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   539
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   540
// CCalcDocument::SetAppEnv
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   541
// This function is used to receive a pointer to the
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   542
// CCalcAppEnv.
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   543
// (other items were commented in a header).
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   544
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   545
//
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   546
void CCalcDocument::SetAppEnv(CCalcAppEnv* aCalcAppEnv)
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   547
	{
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   548
		iCalcAppEnv = aCalcAppEnv;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   549
	}
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   550
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   551
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   552
// CCalcDocument::SetCalcView
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   553
// This function is used to receive a pointer to the
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   554
// SetCalcView.
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   555
// (other items were commented in a header).
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   556
// ---------------------------------------------------------
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   557
//
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   558
void CCalcDocument::SetCalcView( CCalcView* aCCalcView )
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   559
    {
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   560
    iCCalcView = aCCalcView;
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   561
    }
3ee3dfdd8d69 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   562
//  End of File