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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QVARIANTANIMATION_H
#define QVARIANTANIMATION_H
#include <QtCore/qabstractanimation.h>
#include <QtCore/qeasingcurve.h>
#include <QtCore/qlist.h>
#include <QtCore/qpair.h>
#include <QtCore/qvariant.h>
QT_REQUIRE_CONFIG(animation);
QT_BEGIN_NAMESPACE
class QVariantAnimationPrivate;
class Q_CORE_EXPORT QVariantAnimation : public QAbstractAnimation
{
Q_OBJECT
Q_PROPERTY(QVariant startValue READ startValue WRITE setStartValue)
Q_PROPERTY(QVariant endValue READ endValue WRITE setEndValue)
Q_PROPERTY(QVariant currentValue READ currentValue NOTIFY valueChanged)
Q_PROPERTY(int duration READ duration WRITE setDuration BINDABLE bindableDuration)
Q_PROPERTY(QEasingCurve easingCurve READ easingCurve WRITE setEasingCurve
BINDABLE bindableEasingCurve)
public:
using KeyValue = std::pair<qreal, QVariant>;
typedef QList<KeyValue> KeyValues;
QVariantAnimation(QObject *parent = nullptr);
~QVariantAnimation();
QVariant startValue() const;
void setStartValue(const QVariant &value);
QVariant endValue() const;
void setEndValue(const QVariant &value);
QVariant keyValueAt(qreal step) const;
void setKeyValueAt(qreal step, const QVariant &value);
KeyValues keyValues() const;
void setKeyValues(const KeyValues &values);
QVariant currentValue() const;
int duration() const override;
void setDuration(int msecs);
QBindable<int> bindableDuration();
QEasingCurve easingCurve() const;
void setEasingCurve(const QEasingCurve &easing);
QBindable<QEasingCurve> bindableEasingCurve();
typedef QVariant (*Interpolator)(const void *from, const void *to, qreal progress);
Q_SIGNALS:
void valueChanged(const QVariant &value);
protected:
QVariantAnimation(QVariantAnimationPrivate &dd, QObject *parent = nullptr);
bool event(QEvent *event) override;
void updateCurrentTime(int) override;
void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState) override;
virtual void updateCurrentValue(const QVariant &value);
virtual QVariant interpolated(const QVariant &from, const QVariant &to, qreal progress) const;
private:
template <typename T> friend void qRegisterAnimationInterpolator(QVariant (*func)(const T &, const T &, qreal));
static void registerInterpolator(Interpolator func, int interpolationType);
Q_DISABLE_COPY(QVariantAnimation)
Q_DECLARE_PRIVATE(QVariantAnimation)
};
template <typename T>
void qRegisterAnimationInterpolator(QVariant (*func)(const T &from, const T &to, qreal progress)) {
QVariantAnimation::registerInterpolator(reinterpret_cast<QVariantAnimation::Interpolator>(reinterpret_cast<void(*)()>(func)), qMetaTypeId<T>());
}
QT_END_NAMESPACE
#endif //QVARIANTANIMATION_H
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