/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtCore 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qvalueanimation.h"
#include "qvalueanimation_p.h"

QT_BEGIN_NAMESPACE


void QValueAnimationPrivate::initDefaultStartValue()
{
    Q_Q(QValueAnimation);
    if (animProp && !q->startValue().isValid()
        && (currentTime == 0
        || (currentTime == duration && currentLoop == (loopCount - 1)))) {
            setDefaultStartValue(animProp->read());
    }
}


QValueAnimation::QValueAnimation(QObject *parent) : QVariantAnimation(*new QValueAnimationPrivate, parent)
{
}

QValueAnimation::~QValueAnimation()
{
}

void QValueAnimation::setProperty(AbstractProperty *animProp)
{
    Q_D(QValueAnimation);
    d->animProp = animProp;
}

/*!
    \reimp
 */
void QValueAnimation::updateCurrentValue(const QVariant &value)
{
    Q_D(QValueAnimation);
    if (state() == QAbstractAnimation::Stopped)
        return;

    d->animProp->write(value);
}


/*!
    \reimp
*/
void QValueAnimation::updateState(QAbstractAnimation::State oldState, QAbstractAnimation::State newState)
{
    Q_D(QValueAnimation);
    // Initialize start value
    if (oldState == QAbstractAnimation::Stopped && newState == QAbstractAnimation::Running)
        d->initDefaultStartValue();
}



#include "moc_qvalueanimation.cpp"

QT_END_NAMESPACE