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/*
TikZiT - a GUI diagram editor for TikZ
Copyright (C) 2018 Aleks Kissinger
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 <https://www.gnu.org/licenses/>.
*/
/*!
* Various utility functions, mostly for mathematical calculation.
*/
#ifndef UTIL_H
#define UTIL_H
#include <QPoint>
#include <QString>
#include <QColor>
#include <cmath>
#ifndef M_PI
#define M_PI 3.14159265358979323846264338327950288
#endif
// interpolate on a cubic bezier curve
qreal bezierInterpolate(qreal dist, qreal c0, qreal c1, qreal c2, qreal c3);
QPointF bezierInterpolateFull (qreal dist, QPointF c0, QPointF c1, QPointF c2, QPointF c3);
// rounding
qreal roundToNearest(qreal stepSize, qreal val);
qreal radiansToDegrees (qreal radians);
bool almostZero(qreal f);
bool almostEqual(qreal f1, qreal f2);
QString floatToString(qreal f);
// angles
qreal degreesToRadians(qreal degrees);
int normaliseAngleDeg (int degrees);
qreal normaliseAngleRad (qreal rads);
// strings
void initTexConstants();
QString replaceTexConstants(QString s);
#endif // UTIL_H
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