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| |
| #ifndef QVARIANTANIMATION_P_H |
| #define QVARIANTANIMATION_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include "qvariantanimation.h" |
| #include <QtCore/qeasingcurve.h> |
| #include <QtCore/qmetaobject.h> |
| #include <QtCore/qvector.h> |
| |
| #include "private/qabstractanimation_p.h" |
| |
| #include <type_traits> |
| |
| QT_REQUIRE_CONFIG(animation); |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QVariantAnimationPrivate : public QAbstractAnimationPrivate |
| { |
| Q_DECLARE_PUBLIC(QVariantAnimation) |
| public: |
| |
| QVariantAnimationPrivate(); |
| |
| static QVariantAnimationPrivate *get(QVariantAnimation *q) |
| { |
| return q->d_func(); |
| } |
| |
| void setDefaultStartEndValue(const QVariant &value); |
| |
| |
| QVariant currentValue; |
| QVariant defaultStartEndValue; |
| |
| //this is used to keep track of the KeyValue interval in which we currently are |
| struct |
| { |
| QVariantAnimation::KeyValue start, end; |
| } currentInterval; |
| |
| QEasingCurve easing; |
| int duration; |
| QVariantAnimation::KeyValues keyValues; |
| QVariantAnimation::Interpolator interpolator; |
| |
| void setCurrentValueForProgress(const qreal progress); |
| void recalculateCurrentInterval(bool force=false); |
| void setValueAt(qreal, const QVariant &); |
| QVariant valueAt(qreal step) const; |
| void convertValues(int t); |
| |
| void updateInterpolator(); |
| |
| //XXX this is needed by dui |
| static Q_CORE_EXPORT QVariantAnimation::Interpolator getInterpolator(int interpolationType); |
| }; |
| |
| //this should make the interpolation faster |
| template<typename T> |
| typename std::enable_if<std::is_unsigned<T>::value, T>::type |
| _q_interpolate(const T &f, const T &t, qreal progress) |
| { |
| return T(f + t * progress - f * progress); |
| } |
| |
| // the below will apply also to all non-arithmetic types |
| template<typename T> |
| typename std::enable_if<!std::is_unsigned<T>::value, T>::type |
| _q_interpolate(const T &f, const T &t, qreal progress) |
| { |
| return T(f + (t - f) * progress); |
| } |
| |
| template<typename T > inline QVariant _q_interpolateVariant(const T &from, const T &to, qreal progress) |
| { |
| return _q_interpolate(from, to, progress); |
| } |
| |
| |
| QT_END_NAMESPACE |
| |
| #endif //QVARIANTANIMATION_P_H |