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39
40#ifndef QEASINGCURVE_H
41#define QEASINGCURVE_H
42
43#include <QtCore/qglobal.h>
44
45QT_REQUIRE_CONFIG(easingcurve);
46
47#include <QtCore/qobjectdefs.h>
48#include <QtCore/qvector.h>
49#if QT_DEPRECATED_SINCE(5, 0)
50# include <QtCore/qlist.h>
51# include <QtCore/qpoint.h>
52#endif
53
54QT_BEGIN_NAMESPACE
55
56
57class QEasingCurvePrivate;
58class QPointF;
59class Q_CORE_EXPORT QEasingCurve
60{
61 Q_GADGET
62public:
63 enum Type {
64 Linear,
65 InQuad, OutQuad, InOutQuad, OutInQuad,
66 InCubic, OutCubic, InOutCubic, OutInCubic,
67 InQuart, OutQuart, InOutQuart, OutInQuart,
68 InQuint, OutQuint, InOutQuint, OutInQuint,
69 InSine, OutSine, InOutSine, OutInSine,
70 InExpo, OutExpo, InOutExpo, OutInExpo,
71 InCirc, OutCirc, InOutCirc, OutInCirc,
72 InElastic, OutElastic, InOutElastic, OutInElastic,
73 InBack, OutBack, InOutBack, OutInBack,
74 InBounce, OutBounce, InOutBounce, OutInBounce,
75 InCurve, OutCurve, SineCurve, CosineCurve,
76 BezierSpline, TCBSpline, Custom, NCurveTypes
77 };
78 Q_ENUM(Type)
79
80 QEasingCurve(Type type = Linear);
81 QEasingCurve(const QEasingCurve &other);
82 ~QEasingCurve();
83
84 QEasingCurve &operator=(const QEasingCurve &other)
85 { if ( this != &other ) { QEasingCurve copy(other); swap(other&: copy); } return *this; }
86 QEasingCurve(QEasingCurve &&other) noexcept : d_ptr(other.d_ptr) { other.d_ptr = nullptr; }
87 QEasingCurve &operator=(QEasingCurve &&other) noexcept
88 { qSwap(value1&: d_ptr, value2&: other.d_ptr); return *this; }
89
90 void swap(QEasingCurve &other) noexcept { qSwap(value1&: d_ptr, value2&: other.d_ptr); }
91
92 bool operator==(const QEasingCurve &other) const;
93 inline bool operator!=(const QEasingCurve &other) const
94 { return !(this->operator==(other)); }
95
96 qreal amplitude() const;
97 void setAmplitude(qreal amplitude);
98
99 qreal period() const;
100 void setPeriod(qreal period);
101
102 qreal overshoot() const;
103 void setOvershoot(qreal overshoot);
104
105 void addCubicBezierSegment(const QPointF & c1, const QPointF & c2, const QPointF & endPoint);
106 void addTCBSegment(const QPointF &nextPoint, qreal t, qreal c, qreal b);
107 QVector<QPointF> toCubicSpline() const;
108#if QT_DEPRECATED_SINCE(5, 0)
109 QT_DEPRECATED QList<QPointF> cubicBezierSpline() const { return toCubicSpline().toList(); }
110#endif
111
112 Type type() const;
113 void setType(Type type);
114 typedef qreal (*EasingFunction)(qreal progress);
115 void setCustomType(EasingFunction func);
116 EasingFunction customType() const;
117
118 qreal valueForProgress(qreal progress) const;
119private:
120 QEasingCurvePrivate *d_ptr;
121#ifndef QT_NO_DEBUG_STREAM
122 friend Q_CORE_EXPORT QDebug operator<<(QDebug debug, const QEasingCurve &item);
123#endif
124#ifndef QT_NO_DATASTREAM
125 friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QEasingCurve&);
126 friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QEasingCurve &);
127#endif
128};
129Q_DECLARE_SHARED(QEasingCurve)
130
131#ifndef QT_NO_DEBUG_STREAM
132Q_CORE_EXPORT QDebug operator<<(QDebug debug, const QEasingCurve &item);
133#endif
134
135#ifndef QT_NO_DATASTREAM
136Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QEasingCurve&);
137Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QEasingCurve &);
138#endif
139
140QT_END_NAMESPACE
141
142#endif
143

source code of qtbase/src/corelib/tools/qeasingcurve.h