/// <summary>
/// Zjednodušit zlomek
/// </summary>
private static Fraction _CreateSimplify(int integral, int numerator, int denominator, bool negativeDenominatorToPositive, SimplifyIntegralMode integralMode, bool simplifyFraction)
{
// Negative denominator: prepare
bool hasNegativeDenominator = (denominator < 0);
if (hasNegativeDenominator)
{ // Uvnitř metody vždy pracuji s kladným jmenovatelem:
numerator = -numerator;
denominator = -denominator;
}
// Integral part
if (denominator != 0)
{
switch (integralMode)
{
case SimplifyIntegralMode.ToIntegral:
if (numerator >= denominator)
{
int addIntegral = (numerator / denominator);
integral += addIntegral;
numerator -= (addIntegral * denominator);
}
if (numerator <= -denominator)
{
int subIntegral = (-numerator / denominator);
integral -= subIntegral;
numerator += (subIntegral * denominator);
}
break;
case SimplifyIntegralMode.ToNumerator:
if (integral != 0)
{
int addNominator = integral * denominator;
integral = 0;
numerator += addNominator;
}
break;
}
}
// Simplify Fraction part (Nominator and Denominator):
if (simplifyFraction)
{
_SimplifyFraction(ref numerator, ref denominator);
}
// Negative denominator: undone
if (hasNegativeDenominator && !negativeDenominatorToPositive)
{ // Pokud jsme měli negativní jmenovatel, ale není požadavek na jeho otočení na pozitivní => vrátím (dosud) pozitivní jmenovatel na záp**ný, a otočím i čitatel:
numerator = -numerator;
denominator = -denominator;
}
return(new Fraction(integral, numerator, denominator));
}
/// <summary>
/// Zjednodušit zlomek
/// </summary>
private static Fraction _CreateSimplify(Fraction source, bool negativeDenominatorToPositive, SimplifyIntegralMode integralMode, bool simplifyFraction)
{
return(_CreateSimplify(source.Integral, source.Numerator, source.Denominator, negativeDenominatorToPositive, integralMode, simplifyFraction));
}
