| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the 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 ); |
| |
| sal_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 sal_Bool operator==( const Fraction& rVal1, const Fraction& rVal2 ); |
| friend sal_Bool operator!=( const Fraction& rVal1, const Fraction& rVal2 ); |
| friend sal_Bool operator< ( const Fraction& rVal1, const Fraction& rVal2 ); |
| friend sal_Bool operator> ( const Fraction& rVal1, const Fraction& rVal2 ); |
| friend sal_Bool operator<=( const Fraction& rVal1, const Fraction& rVal2 ); |
| friend sal_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 sal_Bool operator==( const Fraction& rVal1, const Fraction& rVal2 ); |
| friend inline sal_Bool operator!=( const Fraction& rVal1, const Fraction& rVal2 ); |
| TOOLS_DLLPUBLIC friend sal_Bool operator< ( const Fraction& rVal1, const Fraction& rVal2 ); |
| TOOLS_DLLPUBLIC friend sal_Bool operator> ( const Fraction& rVal1, const Fraction& rVal2 ); |
| friend inline sal_Bool operator<=( const Fraction& rVal1, const Fraction& rVal2 ); |
| friend inline sal_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 sal_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 sal_Bool operator !=( const Fraction& rVal1, const Fraction& rVal2 ) |
| { |
| return !(rVal1 == rVal2); |
| } |
| |
| inline sal_Bool operator <=( const Fraction& rVal1, const Fraction& rVal2 ) |
| { |
| return !(rVal1 > rVal2); |
| } |
| |
| inline sal_Bool operator >=( const Fraction& rVal1, const Fraction& rVal2 ) |
| { |
| return !(rVal1 < rVal2); |
| } |
| |
| #endif // _FRACT_HXX |