qwaylandquickchildren.h

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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
#ifndef QWAYLANDQUICKCHILDREN_H
#define QWAYLANDQUICKCHILDREN_H
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
 
#include <QtWaylandCompositor/qtwaylandcompositorglobal.h>
#if QT_CONFIG(wayland_compositor_quick)
#include <QtQml/QQmlListProperty>
#include <QtCore/QList>
#endif
 
QT_BEGIN_NAMESPACE
 
#if QT_CONFIG(wayland_compositor_quick)
#define Q_WAYLAND_COMPOSITOR_DECLARE_QUICK_CHILDREN(className)
        Q_PROPERTY(QQmlListProperty<QObject> data READ data DESIGNABLE false)
        Q_CLASSINFO("DefaultProperty", "data")
    public:
        QQmlListProperty<QObject> data()
        {
            return QQmlListProperty<QObject>(this, this,
                                             &className::appendFunction,
                                             &className::countFunction,
                                             &className::atFunction,
                                             &className::clearFunction);
        }
        static void appendFunction(QQmlListProperty<QObject> *list, QObject *object)
        {
            static_cast<className *>(list->data)->m_children.append(object);
        }
        static qsizetype countFunction(QQmlListProperty<QObject> *list)
        {
            return static_cast<className *>(list->data)->m_children.size();
        }
        static QObject *atFunction(QQmlListProperty<QObject> *list, qsizetype index)
        {
            return static_cast<className *>(list->data)->m_children.at(index);
        }
        static void clearFunction(QQmlListProperty<QObject> *list)
        {
            static_cast<className *>(list->data)->m_children.clear();
        }
    private:
        QList<QObject *> m_children;
#else
#define Q_WAYLAND_COMPOSITOR_DECLARE_QUICK_CHILDREN(className)
#endif
 
QT_END_NAMESPACE
 
#endif // QWAYLANDQUICKCHILDREN_H