fraction.h

// Name:        fraction.h
// Author:      Laurent Pugin
// Created:     2024
// Copyright (c) Authors and others. All rights reserved.
 
#ifndef __VRV_FRACTION_H__
#define __VRV_FRACTION_H__
 
#include "vrv.h"
 
namespace vrv {
 
//----------------------------------------------------------------------------
// Fraction
//----------------------------------------------------------------------------
 
class Fraction {
 
public:
    // Constructors - make them explicit to avoid type conversion
    explicit Fraction(int num = 0) : m_numerator(num), m_denominator(1) {}
    explicit Fraction(int num, int denom);
    explicit Fraction(data_DURATION duration);
 
    // Enable implicit conversion constructor for `int`
    template <typename T, typename = std::enable_if_t<std::is_same_v<T, int>>>
    Fraction(T num) : m_numerator(num), m_denominator(1)
    {
    }
 
    Fraction operator+(const Fraction &other) const;
    Fraction operator-(const Fraction &other) const;
    Fraction operator*(const Fraction &other) const;
    Fraction operator/(const Fraction &other) const;
    Fraction operator%(const Fraction &other) const;
 
    bool operator==(const Fraction &other) const;
    std::strong_ordering operator<=>(const Fraction &other) const;
 
    int GetNumerator() const { return m_numerator; }
    int GetDenominator() const { return m_denominator; }
 
    double ToDouble() const;
 
    std::string ToString() const;
 
    std::pair<data_DURATION, Fraction> ToDur() const;
 
    //----------------//
    // Static methods //
    //----------------//
 
    static void Reduce(int &numerator, int &denominator);
 
private:
    void Reduce();
 
public:
    //
private:
    int m_numerator;
    int m_denominator;
};
 
} // namespace vrv
 
#endif