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# qvariantanimation.h

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    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtCore module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QANIMATION_H
    00043 #define QANIMATION_H
    00044
    00045 #include <QtCore/qeasingcurve.h>
    00046 #include <QtCore/qabstractanimation.h>
    00047 #include <QtCore/qvector.h>
    00048 #include <QtCore/qvariant.h>
    00049 #include <QtCore/qpair.h>
    00050
    00051 QT_BEGIN_HEADER
    00052
    00053 QT_BEGIN_NAMESPACE
    00054
    00055 QT_MODULE(Core)
    00056
    00057 #ifndef QT_NO_ANIMATION
    00058
    00059 class QVariantAnimationPrivate;
    00060 class Q_CORE_EXPORT QVariantAnimation : public QAbstractAnimation
    00061 {
    00062     Q_OBJECT
    00063     Q_PROPERTY(QVariant startValue READ startValue WRITE setStartValue)
    00064     Q_PROPERTY(QVariant endValue READ endValue WRITE setEndValue)
    00065     Q_PROPERTY(QVariant currentValue READ currentValue NOTIFY valueChanged)
    00066     Q_PROPERTY(int duration READ duration WRITE setDuration)
    00067     Q_PROPERTY(QEasingCurve easingCurve READ easingCurve WRITE setEasingCurve)
    00068
    00069 public:
    00070     typedef QPair<qreal, QVariant> KeyValue;
    00071     typedef QVector<KeyValue> KeyValues;
    00072
    00073     QVariantAnimation(QObject *parent = 0);
    00074     ~QVariantAnimation();
    00075
    00076     QVariant startValue() const;
    00077     void setStartValue(const QVariant &value);
    00078
    00079     QVariant endValue() const;
    00080     void setEndValue(const QVariant &value);
    00081
    00082     QVariant keyValueAt(qreal step) const;
    00083     void setKeyValueAt(qreal step, const QVariant &value);
    00084
    00085     KeyValues keyValues() const;
    00086     void setKeyValues(const KeyValues &values);
    00087
    00088     QVariant currentValue() const;
    00089
    00090     int duration() const;
    00091     void setDuration(int msecs);
    00092
    00093     QEasingCurve easingCurve() const;
    00094     void setEasingCurve(const QEasingCurve &easing);
    00095
    00096     typedef QVariant (*Interpolator)(const void *from, const void *to, qreal progress);
    00097
    00098 Q_SIGNALS:
    00099     void valueChanged(const QVariant &value);
    00100
    00101 protected:
    00102     QVariantAnimation(QVariantAnimationPrivate &dd, QObject *parent = 0);
    00103     bool event(QEvent *event);
    00104
    00105     void updateCurrentTime(int);
    00106     void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState);
    00107
    00108     virtual void updateCurrentValue(const QVariant &value) = 0;
    00109     virtual QVariant interpolated(const QVariant &from, const QVariant &to, qreal progress) const;
    00110
    00111 private:
    00112     template <typename T> friend void qRegisterAnimationInterpolator(QVariant (*func)(const T &, const T &, qreal));
    00113     static void registerInterpolator(Interpolator func, int interpolationType);
    00114
    00115     Q_DISABLE_COPY(QVariantAnimation)
    00116     Q_DECLARE_PRIVATE(QVariantAnimation)
    00117 };
    00118
    00119 template <typename T>
    00120 void qRegisterAnimationInterpolator(QVariant (*func)(const T &from, const T &to, qreal progress)) {
    00121     QVariantAnimation::registerInterpolator(reinterpret_cast<QVariantAnimation::Interpolator>(func), qMetaTypeId<T>());
    00122 }
    00123
    00124 #endif //QT_NO_ANIMATION
    00125
    00126 QT_END_NAMESPACE
    00127
    00128 QT_END_HEADER
    00129
    00130 #endif //QANIMATION_H