/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
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** This file is part of the Qt3D module of the Qt Toolkit.
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
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****************************************************************************/

#include "quick3dkeyframeanimation_p.h"

QT_BEGIN_NAMESPACE

namespace Qt3DAnimation {
namespace Quick {

QQuick3DKeyframeAnimation::QQuick3DKeyframeAnimation(QObject *parent)
    : QObject(parent)
{
}

QQmlListProperty<Qt3DCore::QTransform> QQuick3DKeyframeAnimation::keyframes()
{
    return QQmlListProperty<Qt3DCore::QTransform>(this, 0,
                                                  &QQuick3DKeyframeAnimation::appendKeyframe,
                                                  &QQuick3DKeyframeAnimation::keyframeCount,
                                                  &QQuick3DKeyframeAnimation::keyframeAt,
                                                  &QQuick3DKeyframeAnimation::clearKeyframes);
}

void QQuick3DKeyframeAnimation::appendKeyframe(QQmlListProperty<Qt3DCore::QTransform> *list,
                                               Qt3DCore::QTransform *transform)
{
    QQuick3DKeyframeAnimation *keyframeAnimation
            = qobject_cast<QQuick3DKeyframeAnimation *>(list->object);
    if (keyframeAnimation)
        keyframeAnimation->parentKeyframeAnimation()->addKeyframe(transform);
}

qsizetype QQuick3DKeyframeAnimation::keyframeCount(QQmlListProperty<Qt3DCore::QTransform> *list)
{
    QQuick3DKeyframeAnimation *keyframeAnimation
            = qobject_cast<QQuick3DKeyframeAnimation *>(list->object);
    if (keyframeAnimation)
        return keyframeAnimation->parentKeyframeAnimation()->keyframeList().count();
    return 0;
}

Qt3DCore::QTransform *QQuick3DKeyframeAnimation::keyframeAt(QQmlListProperty<Qt3DCore::QTransform> *list,
                                                            qsizetype index)
{
    QQuick3DKeyframeAnimation *keyframeAnimation
            = qobject_cast<QQuick3DKeyframeAnimation *>(list->object);
    if (keyframeAnimation) {
        return qobject_cast<Qt3DCore::QTransform *>(
                    keyframeAnimation->parentKeyframeAnimation()->keyframeList().at(index));
    }
    return nullptr;
}

void QQuick3DKeyframeAnimation::clearKeyframes(QQmlListProperty<Qt3DCore::QTransform> *list)
{
    QQuick3DKeyframeAnimation *keyframeAnimation
            = qobject_cast<QQuick3DKeyframeAnimation *>(list->object);
    if (keyframeAnimation) {
        QList<Qt3DCore::QTransform *> emptyList;
        keyframeAnimation->parentKeyframeAnimation()->setKeyframes(emptyList);
    }
}

} // namespace Quick
} // namespace Qt3DAnimation

QT_END_NAMESPACE
