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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _FRACT_HXX
#define _FRACT_HXX
#include "tools/toolsdllapi.h"
#include <tools/solar.h>
class SvStream;
// ------------
// - Fraction -
// ------------
class TOOLS_DLLPUBLIC Fraction
{
private:
long nNumerator;
long nDenominator;
public:
Fraction() { nNumerator = 0; nDenominator = 1; }
Fraction( const Fraction & rFrac );
Fraction( long nNum, long nDen=1 );
Fraction( long nN1, long nN2, long nD1, long nD2 );
Fraction( double dVal );
BOOL IsValid() const;
long GetNumerator() const { return nNumerator; }
long GetDenominator() const { return nDenominator; }
operator long() const;
operator double() const;
Fraction& operator=( const Fraction& rfrFrac );
Fraction& operator+=( const Fraction& rfrFrac );
Fraction& operator-=( const Fraction& rfrFrac );
Fraction& operator*=( const Fraction& rfrFrac );
Fraction& operator/=( const Fraction& rfrFrac );
void ReduceInaccurate( unsigned nSignificantBits );
#ifdef __BORLANDC__
friend Fraction operator+( const Fraction& rVal1, const Fraction& rVal2 );
friend Fraction operator-( const Fraction& rVal1, const Fraction& rVal2 );
friend Fraction operator*( const Fraction& rVal1, const Fraction& rVal2 );
friend Fraction operator/( const Fraction& rVal1, const Fraction& rVal2 );
friend BOOL operator==( const Fraction& rVal1, const Fraction& rVal2 );
friend BOOL operator!=( const Fraction& rVal1, const Fraction& rVal2 );
friend BOOL operator< ( const Fraction& rVal1, const Fraction& rVal2 );
friend BOOL operator> ( const Fraction& rVal1, const Fraction& rVal2 );
friend BOOL operator<=( const Fraction& rVal1, const Fraction& rVal2 );
friend BOOL operator>=( const Fraction& rVal1, const Fraction& rVal2 );
#else
friend inline Fraction operator+( const Fraction& rVal1, const Fraction& rVal2 );
friend inline Fraction operator-( const Fraction& rVal1, const Fraction& rVal2 );
friend inline Fraction operator*( const Fraction& rVal1, const Fraction& rVal2 );
friend inline Fraction operator/( const Fraction& rVal1, const Fraction& rVal2 );
TOOLS_DLLPUBLIC friend BOOL operator==( const Fraction& rVal1, const Fraction& rVal2 );
friend inline BOOL operator!=( const Fraction& rVal1, const Fraction& rVal2 );
TOOLS_DLLPUBLIC friend BOOL operator< ( const Fraction& rVal1, const Fraction& rVal2 );
TOOLS_DLLPUBLIC friend BOOL operator> ( const Fraction& rVal1, const Fraction& rVal2 );
friend inline BOOL operator<=( const Fraction& rVal1, const Fraction& rVal2 );
friend inline BOOL operator>=( const Fraction& rVal1, const Fraction& rVal2 );
#endif
TOOLS_DLLPUBLIC friend SvStream& operator>>( SvStream& rIStream, Fraction& rFract );
TOOLS_DLLPUBLIC friend SvStream& operator<<( SvStream& rOStream, const Fraction& rFract );
};
inline Fraction::Fraction( const Fraction& rFrac )
{
nNumerator = rFrac.nNumerator;
nDenominator = rFrac.nDenominator;
}
inline Fraction& Fraction::operator=( const Fraction& rFrac )
{
nNumerator = rFrac.nNumerator;
nDenominator = rFrac.nDenominator;
return *this;
}
inline BOOL Fraction::IsValid() const
{
return (nDenominator > 0);
}
inline Fraction::operator long() const
{
if ( nDenominator > 0 )
return (nNumerator / nDenominator);
else
return 0;
}
inline Fraction operator+( const Fraction& rVal1, const Fraction& rVal2 )
{
Fraction aErg( rVal1 );
aErg += rVal2;
return aErg;
}
inline Fraction operator-( const Fraction& rVal1, const Fraction& rVal2 )
{
Fraction aErg( rVal1 );
aErg -= rVal2;
return aErg;
}
inline Fraction operator*( const Fraction& rVal1, const Fraction& rVal2 )
{
Fraction aErg( rVal1 );
aErg *= rVal2;
return aErg;
}
inline Fraction operator/( const Fraction& rVal1, const Fraction& rVal2 )
{
Fraction aErg( rVal1 );
aErg /= rVal2;
return aErg;
}
inline BOOL operator !=( const Fraction& rVal1, const Fraction& rVal2 )
{
return !(rVal1 == rVal2);
}
inline BOOL operator <=( const Fraction& rVal1, const Fraction& rVal2 )
{
return !(rVal1 > rVal2);
}
inline BOOL operator >=( const Fraction& rVal1, const Fraction& rVal2 )
{
return !(rVal1 < rVal2);
}
#endif // _FRACT_HXX
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