31589bf023
Flatten the tools::Fraction class. Shaves 1s off a load time of 49s Change-Id: I7cbee9892831a1e47704a283351fa97eda262343 Reviewed-on: https://gerrit.libreoffice.org/74639 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
120 lines
6 KiB
C++
120 lines
6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_TOOLS_FRACT_HXX
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#define INCLUDED_TOOLS_FRACT_HXX
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#include <sal/types.h>
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#include <tools/toolsdllapi.h>
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#include <memory>
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#include <ostream>
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#include <type_traits>
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class SvStream;
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class SAL_WARN_UNUSED TOOLS_DLLPUBLIC Fraction final
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{
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/// these two fields form a boost::rational, but I didn't want to put more boost headers into the global space
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sal_Int32 mnNumerator = 0;
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sal_Int32 mnDenominator = 1;
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bool mbValid = true;
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public:
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Fraction() = default;
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Fraction( const Fraction & rFrac ) = default;
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Fraction( Fraction && rFrac ) = default;
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explicit Fraction( double dVal );
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Fraction( double nNum, double nDen );
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Fraction( sal_Int64 nNum, sal_Int64 nDen );
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// just to prevent ambiguity between the sal_Int64 and double constructors
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template<typename T1, typename T2> Fraction(
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T1 nNum, T2 nDen,
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typename std::enable_if<std::is_integral<T1>::value && std::is_integral<T2>::value, int>::type = 0)
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: Fraction( sal_Int64(nNum), sal_Int64(nDen) ) {}
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bool IsValid() const { return mbValid; }
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sal_Int32 GetNumerator() const;
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sal_Int32 GetDenominator() const;
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explicit operator sal_Int32() const;
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#if SAL_TYPES_SIZEOFLONG == 8
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explicit operator long() const { return sal_Int32(*this); }
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#endif
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explicit operator double() const;
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Fraction& operator=( const Fraction& rfrFrac ) = default;
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Fraction& operator=( Fraction&& rfrFrac ) = default;
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Fraction& operator=( double v ) { return operator=(Fraction(v)); }
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Fraction& operator+=( const Fraction& rfrFrac );
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Fraction& operator-=( const Fraction& rfrFrac );
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Fraction& operator*=( const Fraction& rfrFrac );
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Fraction& operator/=( const Fraction& rfrFrac );
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Fraction& operator+=( double v ) { return operator+=(Fraction(v)); }
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Fraction& operator-=( double v ) { return operator-=(Fraction(v)); }
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Fraction& operator*=( double v ) { return operator*=(Fraction(v)); }
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Fraction& operator/=( double v ) { return operator/=(Fraction(v)); }
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void ReduceInaccurate( unsigned nSignificantBits );
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TOOLS_DLLPUBLIC friend Fraction operator+( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC friend Fraction operator-( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC friend Fraction operator*( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC friend Fraction operator/( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC friend bool operator==( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC friend bool operator!=( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC friend bool operator< ( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC friend bool operator> ( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC friend bool operator<=( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC friend bool operator>=( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC friend SvStream& ReadFraction( SvStream& rIStream, Fraction & rFract );
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TOOLS_DLLPUBLIC friend SvStream& WriteFraction( SvStream& rOStream, const Fraction& rFract );
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};
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TOOLS_DLLPUBLIC Fraction operator+( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC Fraction operator-( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC Fraction operator*( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC Fraction operator/( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC bool operator !=( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC bool operator <=( const Fraction& rVal1, const Fraction& rVal2 );
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TOOLS_DLLPUBLIC bool operator >=( const Fraction& rVal1, const Fraction& rVal2 );
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inline Fraction operator+( double v1, const Fraction& rVal2 ) { return Fraction(v1) + rVal2; }
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inline Fraction operator-( double v1, const Fraction& rVal2 ) { return Fraction(v1) - rVal2; }
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inline Fraction operator*( double v1, const Fraction& rVal2 ) { return Fraction(v1) * rVal2; }
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inline Fraction operator/( double v1, const Fraction& rVal2 ) { return Fraction(v1) / rVal2; }
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inline Fraction operator+( const Fraction& rVal1, double v2 ) { return rVal1 + Fraction(v2); }
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inline Fraction operator-( const Fraction& rVal1, double v2 ) { return rVal1 - Fraction(v2); }
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inline Fraction operator*( const Fraction& rVal1, double v2 ) { return rVal1 * Fraction(v2); }
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inline Fraction operator/( const Fraction& rVal1, double v2 ) { return rVal1 / Fraction(v2); }
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template<typename charT, typename traits>
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inline std::basic_ostream<charT, traits> & operator <<(
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std::basic_ostream<charT, traits> & rStream, const Fraction& rFraction)
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{
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rStream << "(" << rFraction.GetNumerator() << "/" << rFraction.GetDenominator() << ")";
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return rStream;
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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