ViewGuard.h

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/*
  This file is part of KDDockWidgets.
 
  SPDX-FileCopyrightText: 2019 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
  Author: Waqar Ahmed <waqar.ahmed@kdab.com>
 
  SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
 
  Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
 
#ifndef KDDW_VIEW_GUARD_H
#define KDDW_VIEW_GUARD_H
 
#include "kddockwidgets/docks_export.h"
 
#include "kdbindings/signal.h"
 
namespace KDDockWidgets {
 
namespace Core {
class View;
 
class DOCKS_EXPORT ViewGuard
{
public:
    ViewGuard(View *v);
    ViewGuard(const ViewGuard &);
    ~ViewGuard();
 
    operator bool() const;
    View *operator->();
    const View *operator->() const;
    void clear();
    bool isNull() const;
    View *view() const;
 
    ViewGuard &operator=(View *);
    ViewGuard &operator=(const ViewGuard &);
 
private:
    void setView(View *);
    View *v = nullptr;
    KDBindings::ConnectionHandle m_onDestroy;
};
 
}
}
 
#endif