104 lines
2.7 KiB
C++
104 lines
2.7 KiB
C++
/***
|
|
|
|
Olive - Non-Linear Video Editor
|
|
Copyright (C) 2022 Olive Team
|
|
|
|
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/>.
|
|
|
|
***/
|
|
|
|
#ifndef BEZIER_H
|
|
#define BEZIER_H
|
|
|
|
#include <QPointF>
|
|
#include <QObject>
|
|
|
|
#include "common/define.h"
|
|
|
|
namespace olive {
|
|
|
|
class Bezier
|
|
{
|
|
public:
|
|
Bezier();
|
|
Bezier(double x, double y);
|
|
Bezier(double x, double y, double cp1_x, double cp1_y, double cp2_x, double cp2_y);
|
|
|
|
const double &x() const {return x_; }
|
|
const double &y() const {return y_; }
|
|
const double &cp1_x() const { return cp1_x_; }
|
|
const double &cp1_y() const { return cp1_y_; }
|
|
const double &cp2_x() const { return cp2_x_; }
|
|
const double &cp2_y() const { return cp2_y_; }
|
|
|
|
QPointF ToPointF() const
|
|
{
|
|
return QPointF(x_, y_);
|
|
}
|
|
|
|
QPointF ControlPoint1ToPointF() const
|
|
{
|
|
return QPointF(cp1_x_, cp1_y_);
|
|
}
|
|
|
|
QPointF ControlPoint2ToPointF() const
|
|
{
|
|
return QPointF(cp2_x_, cp2_y_);
|
|
}
|
|
|
|
void set_x(const double &x) { x_ = x; }
|
|
void set_y(const double &y) { y_ = y; }
|
|
void set_cp1_x(const double &cp1_x) { cp1_x_ = cp1_x; }
|
|
void set_cp1_y(const double &cp1_y) { cp1_y_ = cp1_y; }
|
|
void set_cp2_x(const double &cp2_x) { cp2_x_ = cp2_x; }
|
|
void set_cp2_y(const double &cp2_y) { cp2_y_ = cp2_y; }
|
|
|
|
static double QuadraticXtoT(double x, double a, double b, double c);
|
|
|
|
static double QuadraticTtoY(double a, double b, double c, double t);
|
|
|
|
static double QuadraticXtoY(double x, const QPointF &a, const QPointF &b, const QPointF &c)
|
|
{
|
|
return QuadraticTtoY(a.y(), b.y(), c.y(), QuadraticXtoT(x, a.x(), b.x(), c.x()));
|
|
}
|
|
|
|
static double CubicXtoT(double x, double a, double b, double c, double d);
|
|
|
|
static double CubicTtoY(double a, double b, double c, double d, double t);
|
|
|
|
static double CubicXtoY(double x, const QPointF &a, const QPointF &b, const QPointF &c, const QPointF &d)
|
|
{
|
|
return CubicTtoY(a.y(), b.y(), c.y(), d.y(), CubicXtoT(x, a.x(), b.x(), c.x(), d.x()));
|
|
}
|
|
|
|
private:
|
|
static double CalculateTFromX(bool cubic, double x, double a, double b, double c, double d);
|
|
|
|
double x_;
|
|
double y_;
|
|
|
|
double cp1_x_;
|
|
double cp1_y_;
|
|
|
|
double cp2_x_;
|
|
double cp2_y_;
|
|
|
|
};
|
|
|
|
}
|
|
|
|
Q_DECLARE_METATYPE(olive::Bezier)
|
|
|
|
#endif // BEZIER_H
|