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41 
42 #ifndef QEASINGCURVE_H
43 #define QEASINGCURVE_H
44 
45 #include <QtCore/qglobal.h>
46 #include <QtCore/qobjectdefs.h>
47 
48 QT_BEGIN_HEADER
49 
50 QT_BEGIN_NAMESPACE
51 
QT_MODULE(Core)52 QT_MODULE(Core)
53 
54 class QEasingCurvePrivate;
55 class Q_CORE_EXPORT QEasingCurve
56 {
57     Q_GADGET
58     Q_ENUMS(Type)
59 public:
60     enum Type {
61         Linear,
62         InQuad, OutQuad, InOutQuad, OutInQuad,
63         InCubic, OutCubic, InOutCubic, OutInCubic,
64         InQuart, OutQuart, InOutQuart, OutInQuart,
65         InQuint, OutQuint, InOutQuint, OutInQuint,
66         InSine, OutSine, InOutSine, OutInSine,
67         InExpo, OutExpo, InOutExpo, OutInExpo,
68         InCirc, OutCirc, InOutCirc, OutInCirc,
69         InElastic, OutElastic, InOutElastic, OutInElastic,
70         InBack, OutBack, InOutBack, OutInBack,
71         InBounce, OutBounce, InOutBounce, OutInBounce,
72         InCurve, OutCurve, SineCurve, CosineCurve,
73         Custom, NCurveTypes
74     };
75 
76     QEasingCurve(Type type = Linear);
77     QEasingCurve(const QEasingCurve &other);
78     ~QEasingCurve();
79 
80     QEasingCurve &operator=(const QEasingCurve &other);
81     bool operator==(const QEasingCurve &other) const;
82     inline bool operator!=(const QEasingCurve &other) const
83     { return !(this->operator==(other)); }
84 
85     qreal amplitude() const;
86     void setAmplitude(qreal amplitude);
87 
88     qreal period() const;
89     void setPeriod(qreal period);
90 
91     qreal overshoot() const;
92     void setOvershoot(qreal overshoot);
93 
94     Type type() const;
95     void setType(Type type);
96     typedef qreal (*EasingFunction)(qreal progress);
97     void setCustomType(EasingFunction func);
98     EasingFunction customType() const;
99 
100     qreal valueForProgress(qreal progress) const;
101 private:
102     QEasingCurvePrivate *d_ptr;
103 #ifndef QT_NO_DEBUG_STREAM
104     friend Q_CORE_EXPORT QDebug operator<<(QDebug debug, const QEasingCurve &item);
105 #endif
106 #ifndef QT_NO_DATASTREAM
107     friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QEasingCurve&);
108     friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QEasingCurve &);
109 #endif
110 };
111 
112 #ifndef QT_NO_DEBUG_STREAM
113 Q_CORE_EXPORT QDebug operator<<(QDebug debug, const QEasingCurve &item);
114 #endif
115 
116 #ifndef QT_NO_DATASTREAM
117 Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QEasingCurve&);
118 Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QEasingCurve &);
119 #endif
120 
121 QT_END_NAMESPACE
122 
123 QT_END_HEADER
124 
125 #endif
126