qquickpopuppositioner_p_p.h

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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QQUICKPOPUPPOSITIONER_P_P_H
#define QQUICKPOPUPPOSITIONER_P_P_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 <QtQuick/private/qquickitemchangelistener_p.h>
#include <QtQuickTemplates2/private/qtquicktemplates2global_p.h>
 
QT_BEGIN_NAMESPACE
 
class QQuickItem;
class QQuickPopup;
 
class Q_QUICKTEMPLATES2_EXPORT QQuickPopupPositioner : public QQuickItemChangeListener
{
public:
    explicit QQuickPopupPositioner(QQuickPopup *popup);
    ~QQuickPopupPositioner();
 
    QQuickPopup *popup() const;
 
    QQuickItem *parentItem() const;
    void setParentItem(QQuickItem *parent);
 
    virtual void reposition();
 
protected:
    void itemGeometryChanged(QQuickItem *, QQuickGeometryChange, const QRectF &) override;
    void itemParentChanged(QQuickItem *, QQuickItem *parent) override;
    void itemChildRemoved(QQuickItem *, QQuickItem *child) override;
 
    void removeAncestorListeners(QQuickItem *item);
    void addAncestorListeners(QQuickItem *item);
 
    bool m_positioning = false;
    QQuickItem *m_parentItem = nullptr;
    QQuickPopup *m_popup = nullptr;
    qreal m_popupScale = 1.0;
};
 
QT_END_NAMESPACE
 
#endif // QQUICKPOPUPPOSITIONER_P_P_H