62 lines
2.3 KiB
C++
62 lines
2.3 KiB
C++
#ifndef IMPORTMIDI_FRACTION_H
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#define IMPORTMIDI_FRACTION_H
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#include "libmscore/fraction.h"
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namespace Ms {
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class ReducedFraction
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{
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public:
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ReducedFraction();
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ReducedFraction(int z, int n);
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explicit ReducedFraction(const Fraction &);
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Fraction fraction() const { return Fraction(numerator_, denominator_); }
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int numerator() const { return numerator_; }
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int denominator() const { return denominator_; }
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static ReducedFraction fromTicks(int ticks);
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ReducedFraction reduced() const;
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ReducedFraction absValue() const { return ReducedFraction(qAbs(numerator_), qAbs(denominator_)); }
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double toDouble() const { return numerator_ * 1.0 / denominator_; }
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int ticks() const;
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void reduce();
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bool isIdenticalTo(const ReducedFraction &f) const
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{ return (f.numerator_ == numerator_ && f.denominator_ == denominator_); }
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ReducedFraction& operator+=(const ReducedFraction&);
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ReducedFraction& operator-=(const ReducedFraction&);
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ReducedFraction& operator*=(const ReducedFraction&);
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ReducedFraction& operator*=(int);
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ReducedFraction& operator/=(const ReducedFraction&);
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ReducedFraction& operator/=(int);
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ReducedFraction operator+(const ReducedFraction& v) const { return ReducedFraction(*this) += v; }
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ReducedFraction operator-(const ReducedFraction& v) const { return ReducedFraction(*this) -= v; }
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ReducedFraction operator*(const ReducedFraction& v) const { return ReducedFraction(*this) *= v; }
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ReducedFraction operator*(int v) const { return ReducedFraction(*this) *= v; }
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ReducedFraction operator/(const ReducedFraction& v) const { return ReducedFraction(*this) /= v; }
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ReducedFraction operator/(int v) const { return ReducedFraction(*this) /= v; }
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bool operator<(const ReducedFraction&) const;
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bool operator<=(const ReducedFraction&) const;
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bool operator>=(const ReducedFraction&) const;
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bool operator>(const ReducedFraction&) const;
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bool operator==(const ReducedFraction&) const;
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bool operator!=(const ReducedFraction&) const;
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private:
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void preventOverflow();
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int numerator_;
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int denominator_;
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};
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ReducedFraction toMuseScoreTicks(int tick, int oldDivision);
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} // namespace Ms
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#endif // IMPORTMIDI_FRACTION_H
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