qt-everywhere-src-5.14.1/qtwayland/src/client/qwaylandsurface_p.h

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#ifndef QWAYLANDSURFACE_P_H
#define QWAYLANDSURFACE_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 <QtGui/QScreen>

#include <QtWaylandClient/private/qwayland-wayland.h>

QT_BEGIN_NAMESPACE

namespace QtWaylandClient {

class QWaylandScreen;
class QWaylandWindow;
class QWaylandDisplay;

class QWaylandSurface : public QObject, public QtWayland::wl_surface
{
    Q_OBJECT
public:
    explicit QWaylandSurface(QWaylandDisplay *display);
    ~QWaylandSurface() override;
    QWaylandScreen *oldestEnteredScreen();
    QWaylandWindow *waylandWindow() const { return m_window; }

    static QWaylandSurface *fromWlSurface(::wl_surface *surface);

signals:
    void screensChanged();

private slots:
    void handleScreenRemoved(QScreen *qScreen);

protected:
    void surface_enter(struct ::wl_output *output) override;
    void surface_leave(struct ::wl_output *output) override;

    QVector<QWaylandScreen *> m_screens; //As seen by wl_surface.enter/leave events. Chronological order.
    QWaylandWindow *m_window = nullptr;

    friend class QWaylandWindow; // TODO: shouldn't need to be friends
};

} // namespace QtWaylandClient

QT_END_NAMESPACE

#endif // QWAYLANDSURFACE_P_H