Qt 4.8
qvariantanimation_p.h
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41 
42 #ifndef QANIMATION_P_H
43 #define QANIMATION_P_H
44 
45 //
46 // W A R N I N G
47 // -------------
48 //
49 // This file is not part of the Qt API. It exists for the convenience
50 // of QIODevice. This header file may change from version to
51 // version without notice, or even be removed.
52 //
53 // We mean it.
54 //
55 
56 #include "qvariantanimation.h"
57 #include <QtCore/qeasingcurve.h>
58 #include <QtCore/qmetaobject.h>
59 #include <QtCore/qvector.h>
60 
61 #include "private/qabstractanimation_p.h"
62 
63 #ifndef QT_NO_ANIMATION
64 
66 
68 {
70 public:
71 
73 
75  {
76  return q->d_func();
77  }
78 
79  void setDefaultStartEndValue(const QVariant &value);
80 
81 
84 
85  //this is used to keep track of the KeyValue interval in which we currently are
86  struct
87  {
90 
92  int duration;
95 
96  void setCurrentValueForProgress(const qreal progress);
97  void recalculateCurrentInterval(bool force=false);
98  void setValueAt(qreal, const QVariant &);
99  QVariant valueAt(qreal step) const;
100  void convertValues(int t);
101 
102  void updateInterpolator();
103 
104  //XXX this is needed by dui
105  static Q_CORE_EXPORT QVariantAnimation::Interpolator getInterpolator(int interpolationType);
106 };
107 
108 //this should make the interpolation faster
109 template<typename T> inline T _q_interpolate(const T &f, const T &t, qreal progress)
110 {
111  return T(f + (t - f) * progress);
112 }
113 
114 template<typename T > inline QVariant _q_interpolateVariant(const T &from, const T &to, qreal progress)
115 {
116  return _q_interpolate(from, to, progress);
117 }
118 
119 
121 
122 #endif //QT_NO_ANIMATION
123 
124 #endif //QANIMATION_P_H
The QVariant class acts like a union for the most common Qt data types.
Definition: qvariant.h:92
double qreal
Definition: qglobal.h:1193
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
The QEasingCurve class provides easing curves for controlling animation.
Definition: qeasingcurve.h:55
void setValueAt(qreal, const QVariant &)
T _q_interpolate(const T &f, const T &t, qreal progress)
QVariant valueAt(qreal step) const
QVariantAnimation::KeyValue end
static Q_CORE_EXPORT QVariantAnimation::Interpolator getInterpolator(int interpolationType)
QVariant(* Interpolator)(const void *from, const void *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.
void setDefaultStartEndValue(const QVariant &value)
QVariantAnimation::KeyValues keyValues
QVariant _q_interpolateVariant(const T &from, const T &to, qreal progress)
#define Q_DECLARE_PUBLIC(Class)
Definition: qglobal.h:2477
#define Q_CORE_EXPORT
Definition: qglobal.h:1449
QVariantAnimation::Interpolator interpolator
void setCurrentValueForProgress(const qreal progress)
void recalculateCurrentInterval(bool force=false)
The goal of this function is to update the currentInterval member.
QVariantAnimation::KeyValue start
struct QVariantAnimationPrivate::@1 currentInterval