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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** 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
** 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 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "quick3dkeyframeanimation_p.h"

QT_BEGIN_NAMESPACE

namespace Qt3DAnimation {
namespace Quick {

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

QQmlListProperty<Qt3DCore::QTransform> QQuick3DKeyframeAnimation::keyframes()
{
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
    using qt_size_type = qsizetype;
#else
    using qt_size_type = int;
#endif

    using ListContentType = Qt3DCore::QTransform;
    auto appendFunction = [](QQmlListProperty<ListContentType> *list, ListContentType *transform) {
        QQuick3DKeyframeAnimation *keyframeAnimation
            = qobject_cast<QQuick3DKeyframeAnimation *>(list->object);
        if (keyframeAnimation)
            keyframeAnimation->parentKeyframeAnimation()->addKeyframe(transform);
    };
    auto countFunction = [](QQmlListProperty<ListContentType> *list) -> qt_size_type {
        QQuick3DKeyframeAnimation *keyframeAnimation
            = qobject_cast<QQuick3DKeyframeAnimation *>(list->object);
        if (keyframeAnimation)
            return keyframeAnimation->parentKeyframeAnimation()->keyframeList().count();
        return 0;
    };
    auto atFunction = [](QQmlListProperty<ListContentType> *list, qt_size_type index) -> ListContentType * {
        QQuick3DKeyframeAnimation *keyframeAnimation
            = qobject_cast<QQuick3DKeyframeAnimation *>(list->object);
        if (keyframeAnimation)
            return qobject_cast<Qt3DCore::QTransform *>(keyframeAnimation->parentKeyframeAnimation()->keyframeList().at(index));
        return nullptr;
    };
    auto clearFunction = [](QQmlListProperty<ListContentType> *list) {
        QQuick3DKeyframeAnimation *keyframeAnimation
            = qobject_cast<QQuick3DKeyframeAnimation *>(list->object);
        if (keyframeAnimation) {
            QList<Qt3DCore::QTransform *> emptyList;
            keyframeAnimation->parentKeyframeAnimation()->setKeyframes(emptyList);
        }
    };

    return QQmlListProperty<ListContentType>(this, nullptr, appendFunction, countFunction, atFunction, clearFunction);
}

} // namespace Quick
} // namespace Qt3DAnimation

QT_END_NAMESPACE