qt-everywhere-src-5.15.1/qtquickcontrols/src/controls/qquickmenuitemcontainer_p.h

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#ifndef QQUICKMENUITEMCONTAINER_P_H
#define QQUICKMENUITEMCONTAINER_P_H

#include "qquickmenuitem_p.h"
#include <QtCore/qlist.h>

QT_BEGIN_NAMESPACE

class QQuickMenuItemContainer1 : public QQuickMenuBase1
{
    Q_OBJECT
public:
    explicit QQuickMenuItemContainer1(QObject *parent = 0)
        : QQuickMenuBase1(parent, -1)
    { }

    ~QQuickMenuItemContainer1()
    {
        clear();
        setParentMenu(0);
    }

    void setParentMenu(QQuickMenu1 *parentMenu) override
    {
        QQuickMenuBase1::setParentMenu(parentMenu);
        for (QQuickMenuBase1 *item : qAsConst(m_menuItems))
            item->setParentMenu(parentMenu);
    }

    void insertItem(int index, QQuickMenuBase1 *item)
    {
        if (index == -1)
            index = m_menuItems.count();
        m_menuItems.insert(index, item);
        item->setContainer(this);
    }

    void removeItem(QQuickMenuBase1 *item)
    {
        item->setParentMenu(0);
        item->setContainer(0);
        m_menuItems.removeOne(item);
    }

    const QList<QPointer<QQuickMenuBase1> > &items()
    {
        return m_menuItems;
    }

    void clear()
    {
        while (!m_menuItems.empty()) {
            QQuickMenuBase1 *item = m_menuItems.takeFirst();
            if (item) {
                item->setParentMenu(0);
                item->setContainer(0);
            }
        }
    }

private:
    QList<QPointer<QQuickMenuBase1> > m_menuItems;
};

QT_END_NAMESPACE

#endif // QQUICKMENUITEMCONTAINER_P_H