www.pudn.com > calculator.rar > fractioninstruction.h


/****************************************************************************
**
** Copyright (C) 2000-2006 TROLLTECH ASA. All rights reserved.
**
** This file is part of the Phone Edition of the Qtopia Toolkit.
**
** Licensees holding a valid license agreement from Trolltech or any of its
** authorized distributors may use this file in accordance with
** the License Agreement provided with the Licensed Software.
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** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Trolltech's Commercial License Agreements.
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** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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#ifdef ENABLE_FRACTION

#ifndef CALC_FRACTION_H
#define CALC_FRACTION_H

#include "instruction.h"
#include "fractiondata.h"
#include "doubledata.h"

//Fraction instruction base
class BaseFractionInstruction:public Instruction {
public:
BaseFractionInstruction();
~BaseFractionInstruction(){};

virtual void eval();
virtual void doEval(FractionData *,FractionData *){};
virtual void doEval(FractionData *){};
};

// Factory
class iFractionFactory:public Instruction {
public:
iFractionFactory();
~iFractionFactory(){};
void eval();
};

// Copy
class iFractionCopy:public BaseFractionInstruction {
public:
iFractionCopy();
~iFractionCopy(){};
void eval();
};

// Conversions
class iConvertDoubleFraction:public Instruction {
public:
iConvertDoubleFraction();
~iConvertDoubleFraction(){};
void eval();
};

// Mathematical functions
class iAddFractionFraction:public BaseFractionInstruction {
public:
iAddFractionFraction();
~iAddFractionFraction(){};
void doEval(FractionData *,FractionData *);
};

class iSubtractFractionFraction:public BaseFractionInstruction {
public:
iSubtractFractionFraction ();
~iSubtractFractionFraction (){};
void doEval(FractionData *,FractionData *);
};

class iMultiplyFractionFraction:public BaseFractionInstruction {
public:
iMultiplyFractionFraction ();
~iMultiplyFractionFraction (){};
void doEval(FractionData *,FractionData *);
};

class iDivideFractionFraction:public BaseFractionInstruction {
public:
iDivideFractionFraction ();
~iDivideFractionFraction (){};
void doEval(FractionData *,FractionData *);
};

class iNegateFractionFraction:public BaseFractionInstruction {
public:
iNegateFractionFraction ();
~iNegateFractionFraction (){};
void doEval(FractionData *);
};

#endif
#endif //ENABLE_FRACTION