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/////////////////////////////////////////////////////////////////////////////
// Name: general/Frac.cpp
// Purpose: A class to make handling fractions easier
// Author: Ben Boeckel
// Modified by: Ben Boeckel
// Created: Sun Mar 18 15:25:16 2007
// Copyright: ©2007 Nerdy Productions
// Licence:
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. If not, see <http://www.gnu.org/licenses/>.
/////////////////////////////////////////////////////////////////////////////
#include "Frac.h"
void PokeGen::Frac::ImportIni(Ini& ini)
{
ini.GetValue("type", type, Proper);
ini.GetValue("num", num, 1);
ini.GetValue("denom", denom, 1);
}
void PokeGen::Frac::ExportIni(QFile& fout, const QString& val)
{
Reduce();
Ini exFrac(val);
exFrac.AddField("num", num);
exFrac.AddField("denom", denom);
exFrac.AddField("type", type);
exFrac.Export(fout);
}
bool PokeGen::Frac::Set(const unsigned n, const unsigned d)
{
if ((type == Improper) || ((n <= d) && (type == Proper)) || ((d <= n) && (type == Over1)))
{
num = n;
denom = d;
}
return ((num == n) && (denom == d));
}
bool PokeGen::Frac::Set(const unsigned n, const unsigned d, const unsigned t)
{
unsigned save_t = type;
if (SetType(t))
{
if (Set(n, d))
return true;
}
type = save_t;
return false;
}
bool PokeGen::Frac::SetNum(const unsigned n)
{
if ((type == Improper) || ((n <= denom) && (type == Proper)) || ((denom <= n) && (type == Over1)))
{
num = n;
return true;
}
return false;
}
bool PokeGen::Frac::SetDenom(const unsigned d)
{
if (d && ((type == Improper) || ((num <= d) && (type == Proper)) || ((d <= num) && (type == Over1))))
{
denom = d;
return true;
}
return false;
}
bool PokeGen::Frac::SetType(const unsigned t)
{
if (t < End)
{
type = t;
Set(num, denom);
}
return (type == t);
}
void PokeGen::Frac::Reduce()
{
int i = num;
int j = denom;
int k;
while (j)
{
k = j;
j = i % j;
i = k;
}
num /= i;
denom /= i;
}
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