diff -r 568fcfc6da71 -r 39d7a9642eea src/miscallenous.cpp
--- a/src/miscallenous.cpp	Sat Mar 24 11:05:40 2018 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,93 +0,0 @@
-/*
- *  LDForge: LDraw parts authoring CAD
- *  Copyright (C) 2013 - 2017 Teemu Piippo
- *
- *  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 <math.h>
-#include <locale.h>
-#include <QColor>
-#include "main.h"
-#include "miscallenous.h"
-#include "mainwindow.h"
-#include "lddocument.h"
-
-
-int gcd (int a, int b)
-{
-	while (b != 0)
-	{
-		int temp = a;
-		a = b;
-		b = temp % b;
-	}
-
-	return a;
-}
-
-
-void simplify (int& numerator, int& denominator)
-{
-	int factor = gcd(numerator, denominator);
-	numerator /= factor;
-	denominator /= factor;
-}
-
-
-QString joinStrings (QList<StringFormatArg> vals, QString delim)
-{
-	QStringList list;
-
-	for (const StringFormatArg& arg : vals)
-		list << arg.text();
-
-	return list.join (delim);
-}
-
-
-void roundToDecimals(double& value, int decimals)
-{
-	if (decimals == 0)
-	{
-		value = round(value);
-	}
-	else if (decimals > 0)
-	{
-		qreal coefficient = pow(10, decimals);
-		value = round(value * coefficient) / coefficient;
-	}
-}
-
-
-void applyToMatrix (Matrix& a, ApplyToMatrixFunction func)
-{
-	for (int i = 0; i < 9; ++i)
-		func(i, a.value(i));
-}
-
-void applyToMatrix (const Matrix& a, ApplyToMatrixConstFunction func)
-{
-	for (int i = 0; i < 9; ++i)
-		func(i, a.value(i));
-}
-
-
-QString formatFileSize (qint64 size)
-{
-	static const QString suffixes[] = {" bytes", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"};
-	int magnitude = (size > 0) ? floor(log10(size) / 3.0 + 1e-10) : 0;
-	magnitude = qBound(0, magnitude, countof(suffixes) - 1);
-	return QString::number(size / pow(1000, magnitude)) + suffixes[magnitude];
-}