qwaylandsubsurface_p.h

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// Copyright (C) 2018 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 QWAYLANDSUBSURFACE_H
#define QWAYLANDSUBSURFACE_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 <QtCore/private/qglobal_p.h>
#include <QtCore/qmutex.h>
 
#include <QtWaylandClient/qtwaylandclientglobal.h>
#include <QtWaylandClient/private/qwayland-wayland.h>
 
QT_BEGIN_NAMESPACE
 
namespace QtWaylandClient {
 
class QWaylandDisplay;
class QWaylandWindow;
 
class Q_WAYLANDCLIENT_EXPORT QWaylandSubSurface : public QtWayland::wl_subsurface
{
public:
    QWaylandSubSurface(QWaylandWindow *window, QWaylandWindow *parent, ::wl_subsurface *subsurface);
    ~QWaylandSubSurface() override;
 
    QWaylandWindow *window() const { return m_window; }
    QWaylandWindow *parent() const { return m_parent; }
 
    void setSync();
    void setDeSync();
    bool isSync() const { return m_synchronized; }
    QMutex *syncMutex() { return &m_syncLock; }
 
private:
 
    // Intentionally hide public methods from ::wl_subsurface
    // to keep track of the sync state
    void set_sync();
    void set_desync();
    QWaylandWindow *m_window = nullptr;
    QWaylandWindow *m_parent = nullptr;
    bool m_synchronized = false;
    QMutex m_syncLock;
 
};
 
QT_END_NAMESPACE
 
}
 
#endif // QWAYLANDSUBSURFACE_H