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/****************************************************************************
**
** 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 QtDeclarative 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 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 "qdeclarativesmoothedanimation_p.h"
#include "qdeclarativeanimation_p.h"
#include "qdeclarativeanimation_p_p.h"
#include <qparallelanimationgroup.h>
#include <private/qobject_p.h>
#include <QTimer>
QT_BEGIN_NAMESPACE
class 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();
QParallelAnimationGroup *wrapperGroup;
QSmoothedAnimation *anim;
QHash<QDeclarativeProperty, QSmoothedAnimation*> activeAnimations;
};
QT_END_NAMESPACE
#endif // QDECLARATIVESMOOTHEDANIMATION_P_H
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