| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QVARIANTANIMATION_H |
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| 5 | #define QVARIANTANIMATION_H |
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| 6 | |
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| 7 | #include <QtCore/qabstractanimation.h> |
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| 8 | #include <QtCore/qeasingcurve.h> |
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| 9 | #include <QtCore/qlist.h> |
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| 10 | #include <QtCore/qpair.h> |
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| 11 | #include <QtCore/qvariant.h> |
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| 12 | |
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| 13 | QT_REQUIRE_CONFIG(animation); |
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| 14 | |
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| 15 | QT_BEGIN_NAMESPACE |
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| 16 | |
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| 17 | class QVariantAnimationPrivate; |
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| 18 | class Q_CORE_EXPORT QVariantAnimation : public QAbstractAnimation |
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| 19 | { |
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| 20 | Q_OBJECT |
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| 21 | Q_PROPERTY(QVariant startValue READ startValue WRITE setStartValue) |
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| 22 | Q_PROPERTY(QVariant endValue READ endValue WRITE setEndValue) |
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| 23 | Q_PROPERTY(QVariant currentValue READ currentValue NOTIFY valueChanged) |
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| 24 | Q_PROPERTY(int duration READ duration WRITE setDuration BINDABLE bindableDuration) |
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| 25 | Q_PROPERTY(QEasingCurve easingCurve READ easingCurve WRITE setEasingCurve |
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| 26 | BINDABLE bindableEasingCurve) |
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| 27 | |
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| 28 | public: |
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| 29 | typedef QPair<qreal, QVariant> KeyValue; |
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| 30 | typedef QList<KeyValue> KeyValues; |
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| 31 | |
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| 32 | QVariantAnimation(QObject *parent = nullptr); |
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| 33 | ~QVariantAnimation(); |
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| 34 | |
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| 35 | QVariant startValue() const; |
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| 36 | void setStartValue(const QVariant &value); |
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| 37 | |
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| 38 | QVariant endValue() const; |
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| 39 | void setEndValue(const QVariant &value); |
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| 40 | |
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| 41 | QVariant keyValueAt(qreal step) const; |
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| 42 | void setKeyValueAt(qreal step, const QVariant &value); |
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| 43 | |
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| 44 | KeyValues keyValues() const; |
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| 45 | void setKeyValues(const KeyValues &values); |
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| 46 | |
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| 47 | QVariant currentValue() const; |
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| 48 | |
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| 49 | int duration() const override; |
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| 50 | void setDuration(int msecs); |
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| 51 | QBindable<int> bindableDuration(); |
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| 52 | |
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| 53 | QEasingCurve easingCurve() const; |
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| 54 | void setEasingCurve(const QEasingCurve &easing); |
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| 55 | QBindable<QEasingCurve> bindableEasingCurve(); |
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| 56 | |
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| 57 | typedef QVariant (*Interpolator)(const void *from, const void *to, qreal progress); |
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| 58 | |
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| 59 | Q_SIGNALS: |
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| 60 | void valueChanged(const QVariant &value); |
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| 61 | |
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| 62 | protected: |
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| 63 | QVariantAnimation(QVariantAnimationPrivate &dd, QObject *parent = nullptr); |
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| 64 | bool event(QEvent *event) override; |
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| 65 | |
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| 66 | void updateCurrentTime(int) override; |
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| 67 | void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState) override; |
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| 68 | |
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| 69 | virtual void updateCurrentValue(const QVariant &value); |
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| 70 | virtual QVariant interpolated(const QVariant &from, const QVariant &to, qreal progress) const; |
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| 71 | |
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| 72 | private: |
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| 73 | template <typename T> friend void qRegisterAnimationInterpolator(QVariant (*func)(const T &, const T &, qreal)); |
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| 74 | static void registerInterpolator(Interpolator func, int interpolationType); |
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| 75 | |
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| 76 | Q_DISABLE_COPY(QVariantAnimation) |
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| 77 | Q_DECLARE_PRIVATE(QVariantAnimation) |
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| 78 | }; |
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| 79 | |
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| 80 | template <typename T> |
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| 81 | void qRegisterAnimationInterpolator(QVariant (*func)(const T &from, const T &to, qreal progress)) { |
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| 82 | QVariantAnimation::registerInterpolator(func: reinterpret_cast<QVariantAnimation::Interpolator>(reinterpret_cast<void(*)()>(func)), interpolationType: qMetaTypeId<T>()); |
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| 83 | } |
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| 84 | |
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| 85 | QT_END_NAMESPACE |
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| 86 | |
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| 87 | #endif //QVARIANTANIMATION_H |
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| 88 | |
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