1
/****************************************************************************
3
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4
** All rights reserved.
5
** Contact: Nokia Corporation (qt-info@nokia.com)
7
** This file is part of the QtCore module of the Qt Toolkit.
9
** $QT_BEGIN_LICENSE:LGPL$
10
** No Commercial Usage
11
** This file contains pre-release code and may not be distributed.
12
** You may use this file in accordance with the terms and conditions
13
** contained in the Technology Preview License Agreement accompanying
16
** GNU Lesser General Public License Usage
17
** Alternatively, this file may be used under the terms of the GNU Lesser
18
** General Public License version 2.1 as published by the Free Software
19
** Foundation and appearing in the file LICENSE.LGPL included in the
20
** packaging of this file. Please review the following information to
21
** ensure the GNU Lesser General Public License version 2.1 requirements
22
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24
** In addition, as a special exception, Nokia gives you certain additional
25
** rights. These rights are described in the Nokia Qt LGPL Exception
26
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28
** If you have questions regarding the use of this file, please contact
29
** Nokia at qt-info@nokia.com.
40
****************************************************************************/
42
#ifndef QANIMATION_P_H
43
#define QANIMATION_P_H
49
// This file is not part of the Qt API. It exists for the convenience
50
// of QIODevice. This header file may change from version to
51
// version without notice, or even be removed.
56
#include "qvariantanimation.h"
57
#include <QtCore/qeasingcurve.h>
58
#include <QtCore/qmetaobject.h>
59
#include <QtCore/qvector.h>
61
#include "private/qabstractanimation_p.h"
63
#ifndef QT_NO_ANIMATION
67
class QVariantAnimationPrivate : public QAbstractAnimationPrivate
69
Q_DECLARE_PUBLIC(QVariantAnimation)
72
QVariantAnimationPrivate();
74
static QVariantAnimationPrivate *get(QVariantAnimation *q)
79
void setDefaultStartEndValue(const QVariant &value);
82
QVariant currentValue;
83
QVariant defaultStartEndValue;
85
//this is used to keep track of the KeyValue interval in which we currently are
88
QVariantAnimation::KeyValue start, end;
93
QVariantAnimation::KeyValues keyValues;
94
QVariantAnimation::Interpolator interpolator;
96
void setCurrentValueForProgress(const qreal progress);
97
void recalculateCurrentInterval(bool force=false);
98
void setValueAt(qreal, const QVariant &);
99
QVariant valueAt(qreal step) const;
100
void convertValues(int t);
102
void updateInterpolator();
104
//XXX this is needed by dui
105
static Q_CORE_EXPORT QVariantAnimation::Interpolator getInterpolator(int interpolationType);
108
//this should make the interpolation faster
109
template<typename T> inline T _q_interpolate(const T &f, const T &t, qreal progress)
111
return T(f + (t - f) * progress);
114
template<typename T > inline QVariant _q_interpolateVariant(const T &from, const T &to, qreal progress)
116
return _q_interpolate(from, to, progress);
122
#endif //QT_NO_ANIMATION
124
#endif //QANIMATION_P_H