121 lines
4.5 KiB
C++
121 lines
4.5 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QVARIANTANIMATION_H
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#define QVARIANTANIMATION_H
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#include <QtCore/qeasingcurve.h>
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#include <QtCore/qabstractanimation.h>
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#include <QtCore/qvector.h>
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#include <QtCore/qvariant.h>
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#include <QtCore/qpair.h>
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QT_REQUIRE_CONFIG(animation);
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QT_BEGIN_NAMESPACE
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class QVariantAnimationPrivate;
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class Q_CORE_EXPORT QVariantAnimation : public QAbstractAnimation
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{
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Q_OBJECT
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Q_PROPERTY(QVariant startValue READ startValue WRITE setStartValue)
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Q_PROPERTY(QVariant endValue READ endValue WRITE setEndValue)
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Q_PROPERTY(QVariant currentValue READ currentValue NOTIFY valueChanged)
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Q_PROPERTY(int duration READ duration WRITE setDuration)
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Q_PROPERTY(QEasingCurve easingCurve READ easingCurve WRITE setEasingCurve)
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public:
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typedef QPair<qreal, QVariant> KeyValue;
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typedef QVector<KeyValue> KeyValues;
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QVariantAnimation(QObject *parent = nullptr);
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~QVariantAnimation();
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QVariant startValue() const;
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void setStartValue(const QVariant &value);
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QVariant endValue() const;
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void setEndValue(const QVariant &value);
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QVariant keyValueAt(qreal step) const;
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void setKeyValueAt(qreal step, const QVariant &value);
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KeyValues keyValues() const;
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void setKeyValues(const KeyValues &values);
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QVariant currentValue() const;
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int duration() const override;
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void setDuration(int msecs);
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QEasingCurve easingCurve() const;
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void setEasingCurve(const QEasingCurve &easing);
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typedef QVariant (*Interpolator)(const void *from, const void *to, qreal progress);
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Q_SIGNALS:
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void valueChanged(const QVariant &value);
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protected:
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QVariantAnimation(QVariantAnimationPrivate &dd, QObject *parent = nullptr);
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bool event(QEvent *event) override;
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void updateCurrentTime(int) override;
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void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState) override;
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virtual void updateCurrentValue(const QVariant &value);
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virtual QVariant interpolated(const QVariant &from, const QVariant &to, qreal progress) const;
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private:
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template <typename T> friend void qRegisterAnimationInterpolator(QVariant (*func)(const T &, const T &, qreal));
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static void registerInterpolator(Interpolator func, int interpolationType);
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Q_DISABLE_COPY(QVariantAnimation)
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Q_DECLARE_PRIVATE(QVariantAnimation)
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};
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template <typename T>
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void qRegisterAnimationInterpolator(QVariant (*func)(const T &from, const T &to, qreal progress)) {
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QVariantAnimation::registerInterpolator(reinterpret_cast<QVariantAnimation::Interpolator>(reinterpret_cast<void(*)()>(func)), qMetaTypeId<T>());
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}
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QT_END_NAMESPACE
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#endif //QVARIANTANIMATION_H
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