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//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2009 Werner Schweer
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2
// as published by the Free Software Foundation and appearing in
// the file LICENCE.GPL
//=============================================================================
#ifndef __FRACTION_H__
#define __FRACTION_H__
#include "config.h"
namespace Ms {
//---------------------------------------------------------
// Fraction
//---------------------------------------------------------
class Fraction {
int _numerator;
int _denominator;
public:
Fraction(int z = 0, int n = 1);
int numerator() const { return _numerator; }
int denominator() const { return _denominator; }
int& rnumerator() { return _numerator; }
int& rdenominator() { return _denominator; }
void setNumerator(int v) { _numerator = v; }
void setDenominator(int v) { _denominator = v; }
void set(int z, int n) { _numerator = z; _denominator = n; }
bool isZero() const { return _numerator == 0; }
bool isValid() const { return _denominator != 0; }
void reduce();
Fraction reduced() const;
Fraction absValue() const;
// check if two fractions are identical (numerator & denominator)
// == operator checks for equal value:
bool identical(const Fraction& v) const {
return (_numerator == v._numerator) && (_denominator == v._denominator);
}
int ticks() const;
static Fraction fromTicks(int v);
Fraction& operator+=(const Fraction&);
Fraction& operator-=(const Fraction&);
Fraction& operator*=(const Fraction&);
Fraction& operator*=(int);
Fraction& operator/=(const Fraction&);
Fraction& operator/=(int);
Fraction operator+(const Fraction& v) const { return Fraction(*this) += v; }
Fraction operator-(const Fraction& v) const { return Fraction(*this) -= v; }
Fraction operator*(const Fraction& v) const { return Fraction(*this) *= v; }
Fraction operator*(int v) const { return Fraction(*this) *= v; }
Fraction operator/(const Fraction& v) const { return Fraction(*this) /= v; }
Fraction operator/(int v) const { return Fraction(*this) /= v; }
bool operator<(const Fraction&) const;
bool operator<=(const Fraction&) const;
bool operator>=(const Fraction&) const;
bool operator>(const Fraction&) const;
bool operator==(const Fraction&) const;
bool operator!=(const Fraction&) const;
QString print() const { return QString("%1/%2").arg(_numerator).arg(_denominator); }
};
#ifdef SCRIPT_INTERFACE
//---------------------------------------------------------
// FractionWrapper
//---------------------------------------------------------
class FractionWrapper : public QObject {
Q_OBJECT
Q_PROPERTY(int numerator READ numerator)
Q_PROPERTY(int denominator READ denominator)
Q_PROPERTY(int ticks READ ticks)
Fraction f;
public slots:
void setFraction(Fraction _f) { f = _f; }
public:
FractionWrapper(const FractionWrapper& w) : QObject() { f = w.f; }
FractionWrapper() {}
FractionWrapper(const Fraction& _f) : f(_f) {}
Fraction fraction() const { return f; }
int numerator() const { return f.numerator(); }
int denominator() const { return f.denominator(); }
int ticks() const { return f.ticks(); }
};
#endif // SCRIPT_INTERFACE
} // namespace Ms
Q_DECLARE_METATYPE(Ms::Fraction);
#ifdef SCRIPT_INTERFACE
Q_DECLARE_METATYPE(Ms::FractionWrapper);
#endif
#endif
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