Qt 4.8
qvariantanimation.h
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41 
42 #ifndef QANIMATION_H
43 #define QANIMATION_H
44 
45 #include <QtCore/qeasingcurve.h>
46 #include <QtCore/qabstractanimation.h>
47 #include <QtCore/qvector.h>
48 #include <QtCore/qvariant.h>
49 #include <QtCore/qpair.h>
50 
52 
54 
55 QT_MODULE(Core)
56 
57 #ifndef QT_NO_ANIMATION
58 
61 {
62  Q_OBJECT
66  int duration;
68 
69 public:
72 
73  QVariantAnimation(QObject *parent = 0);
75 
76  QVariant startValue() const;
77  void setStartValue(const QVariant &value);
78 
79  QVariant endValue() const;
80  void setEndValue(const QVariant &value);
81 
82  QVariant keyValueAt(qreal step) const;
83  void setKeyValueAt(qreal step, const QVariant &value);
84 
85  KeyValues keyValues() const;
86  void setKeyValues(const KeyValues &values);
87 
88  QVariant currentValue() const;
89 
90  int duration() const;
91  void setDuration(int msecs);
92 
93  QEasingCurve easingCurve() const;
94  void setEasingCurve(const QEasingCurve &easing);
95 
96  typedef QVariant (*Interpolator)(const void *from, const void *to, qreal progress);
97 
98 Q_SIGNALS:
99  void valueChanged(const QVariant &value);
100 
101 protected:
103  bool event(QEvent *event);
104 
105  void updateCurrentTime(int);
107 
108  virtual void updateCurrentValue(const QVariant &value) = 0;
109  virtual QVariant interpolated(const QVariant &from, const QVariant &to, qreal progress) const;
110 
111 private:
112  template <typename T> friend void qRegisterAnimationInterpolator(QVariant (*func)(const T &, const T &, qreal));
113  static void registerInterpolator(Interpolator func, int interpolationType);
114 
117 };
118 
119 template <typename T>
120 void qRegisterAnimationInterpolator(QVariant (*func)(const T &from, const T &to, qreal progress)) {
121  QVariantAnimation::registerInterpolator(reinterpret_cast<QVariantAnimation::Interpolator>(func), qMetaTypeId<T>());
122 }
123 
124 #endif //QT_NO_ANIMATION
125 
127 
129 
130 #endif //QANIMATION_H
The QVariant class acts like a union for the most common Qt data types.
Definition: qvariant.h:92
QVariant endValue
the end value of the animation
virtual void updateCurrentTime(int currentTime)=0
This pure virtual function is called every time the animation&#39;s currentTime changes.
double qreal
Definition: qglobal.h:1193
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
State
This enum describes the state of the animation.
EventRef event
#define QT_MODULE(x)
Definition: qglobal.h:2783
The QEasingCurve class provides easing curves for controlling animation.
Definition: qeasingcurve.h:55
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
int duration
the duration of the animation
#define Q_DISABLE_COPY(Class)
Disables the use of copy constructors and assignment operators for the given Class.
Definition: qglobal.h:2523
QPair< qreal, QVariant > KeyValue
This is a typedef for QPair<qreal, QVariant>.
The QObject class is the base class of all Qt objects.
Definition: qobject.h:111
#define Q_SIGNALS
Definition: qobjectdefs.h:72
QVariant startValue
the optional start value of the animation
void qRegisterAnimationInterpolator(QVariant(*func)(const T &from, const T &to, qreal progress))
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The QVariantAnimation class provides an abstract base class for animations.
QVector< KeyValue > KeyValues
This is a typedef for QVector<KeyValue>
The QAbstractAnimation class is the base of all animations.
quint16 values[128]
#define Q_OBJECT
Definition: qobjectdefs.h:157
QVariant currentValue
the current value of the animation.
#define Q_CORE_EXPORT
Definition: qglobal.h:1449
virtual void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState)
This virtual function is called by QAbstractAnimation when the state of the animation is changed from...
bool event(QEvent *event)
Reimplemented Function
QEasingCurve easingCurve
the easing curve of the animation
#define Q_DECLARE_PRIVATE(Class)
Definition: qglobal.h:2467
virtual int duration() const =0
The QEvent class is the base class of all event classes.
Definition: qcoreevent.h:56
#define QT_END_HEADER
Definition: qglobal.h:137
static void registerInterpolator(Interpolator func, int interpolationType)