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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QDECLARATIVESMOOTHEDANIMATION_P_H
#define QDECLARATIVESMOOTHEDANIMATION_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 "private/qdeclarativesmoothedanimation_p.h"
#include "private/qdeclarativeanimation_p.h"
#include "private/qdeclarativeanimation_p_p.h"
#include <qparallelanimationgroup.h>
#include <private/qobject_p.h>
#include <QTimer>
QT_BEGIN_NAMESPACE
class Q_AUTOTEST_EXPORT QSmoothedAnimation : public QAbstractAnimation
{
public:
QSmoothedAnimation(QObject *parent=0);
qreal to;
qreal velocity;
int userDuration;
int maximumEasingTime;
QDeclarativeSmoothedAnimation::ReversingMode reversingMode;
qreal initialVelocity;
qreal trackVelocity;
QDeclarativeProperty target;
int duration() const;
void restart();
void init();
protected:
virtual void updateCurrentTime(int);
virtual void updateState(QAbstractAnimation::State, QAbstractAnimation::State);
private:
qreal easeFollow(qreal);
qreal initialValue;
bool invert;
int finalDuration;
// Parameters for use in updateCurrentTime()
qreal a; // Acceleration
qreal d; // Deceleration
qreal tf; // Total time
qreal tp; // Time at which peak velocity occurs
qreal td; // Time at which decelleration begins
qreal vp; // Velocity at tp
qreal sp; // Displacement at tp
qreal sd; // Displacement at td
qreal vi; // "Normalized" initialvelocity
qreal s; // Total s
int lastTime;
bool recalc();
void delayedStop();
QTimer delayedStopTimer;
};
class QDeclarativeSmoothedAnimationPrivate : public QDeclarativePropertyAnimationPrivate
{
Q_DECLARE_PUBLIC(QDeclarativeSmoothedAnimation)
public:
QDeclarativeSmoothedAnimationPrivate();
void updateRunningAnimations();
QParallelAnimationGroup *wrapperGroup;
QSmoothedAnimation *anim;
QHash<QDeclarativeProperty, QSmoothedAnimation*> activeAnimations;
};
QT_END_NAMESPACE
#endif // QDECLARATIVESMOOTHEDANIMATION_P_H
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