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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QVARIANTANIMATION_P_H
#define QVARIANTANIMATION_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of QIODevice. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qvariantanimation.h"
#include <QtCore/qeasingcurve.h>
#include <QtCore/qmetaobject.h>
#include <QtCore/qvector.h>
#include "private/qabstractanimation_p.h"
#ifndef QT_NO_ANIMATION
QT_BEGIN_NAMESPACE
class QVariantAnimationPrivate : public QAbstractAnimationPrivate
{
Q_DECLARE_PUBLIC(QVariantAnimation)
public:
QVariantAnimationPrivate();
static QVariantAnimationPrivate *get(QVariantAnimation *q)
{
return q->d_func();
}
void setDefaultStartEndValue(const QVariant &value);
QVariant currentValue;
QVariant defaultStartEndValue;
//this is used to keep track of the KeyValue interval in which we currently are
struct
{
QVariantAnimation::KeyValue start, end;
} currentInterval;
QEasingCurve easing;
int duration;
QVariantAnimation::KeyValues keyValues;
QVariantAnimation::Interpolator interpolator;
void setCurrentValueForProgress(const qreal progress);
void recalculateCurrentInterval(bool force=false);
void setValueAt(qreal, const QVariant &);
QVariant valueAt(qreal step) const;
void convertValues(int t);
void updateInterpolator();
//XXX this is needed by dui
static Q_CORE_EXPORT QVariantAnimation::Interpolator getInterpolator(int interpolationType);
};
//this should make the interpolation faster
template<typename T> inline T _q_interpolate(const T &f, const T &t, qreal progress)
{
return T(f + (t - f) * progress);
}
template<typename T > inline QVariant _q_interpolateVariant(const T &from, const T &to, qreal progress)
{
return _q_interpolate(from, to, progress);
}
QT_END_NAMESPACE
#endif //QT_NO_ANIMATION
#endif //QVARIANTANIMATION_P_H
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