/******************************************************************************** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).** All rights reserved.** Contact: Nokia Corporation (qt-info@nokia.com)**** This file is part of the QtCore module of the Qt Toolkit.**** $QT_BEGIN_LICENSE:LGPL$** No Commercial Usage** This file contains pre-release code and may not be distributed.** You may use this file in accordance with the terms and conditions** contained in the Technology Preview License Agreement accompanying** this package.**** GNU Lesser General Public License Usage** Alternatively, this file may be used under the terms of the GNU Lesser** General Public License version 2.1 as published by the Free Software** Foundation and appearing in the file LICENSE.LGPL included in the** packaging of this file. Please review the following information to** ensure the GNU Lesser General Public License version 2.1 requirements** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.**** In addition, as a special exception, Nokia gives you certain additional** rights. These rights are described in the Nokia Qt LGPL Exception** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.**** If you have questions regarding the use of this file, please contact** Nokia at qt-info@nokia.com.****************** $QT_END_LICENSE$******************************************************************************/#ifndef QANIMATION_H#define QANIMATION_H#include <QtCore/qeasingcurve.h>#include <QtCore/qabstractanimation.h>#include <QtCore/qvector.h>#include <QtCore/qvariant.h>#include <QtCore/qpair.h>QT_BEGIN_HEADERQT_BEGIN_NAMESPACEQT_MODULE(Core)#ifndef QT_NO_ANIMATIONclass 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) Q_PROPERTY(QEasingCurve easingCurve READ easingCurve WRITE setEasingCurve)public: typedef QPair<qreal, QVariant> KeyValue; typedef QVector<KeyValue> KeyValues; QVariantAnimation(QObject *parent = 0); ~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; void setDuration(int msecs); QEasingCurve easingCurve() const; void setEasingCurve(const QEasingCurve &easing); typedef QVariant (*Interpolator)(const void *from, const void *to, qreal progress);Q_SIGNALS: void valueChanged(const QVariant &value);protected: QVariantAnimation(QVariantAnimationPrivate &dd, QObject *parent = 0); bool event(QEvent *event); void updateCurrentTime(int); void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState); virtual void updateCurrentValue(const QVariant &value) = 0; 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>(func), qMetaTypeId<T>());}#endif //QT_NO_ANIMATIONQT_END_NAMESPACEQT_END_HEADER#endif //QANIMATION_H