14.1.186. tablet_qt/lib/flagguard.cpp

/*
    Copyright (C) 2012-2019 Rudolf Cardinal (rudolf@pobox.com).

    This file is part of CamCOPS.

    CamCOPS is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    CamCOPS is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with CamCOPS. If not, see <http://www.gnu.org/licenses/>.
*/

#include "flagguard.h"

FlagGuard::FlagGuard(bool& flag) :
    m_flag(flag),
    m_previous_state(flag)
{
    m_flag = true;
}


FlagGuard::~FlagGuard()
{
    m_flag = m_previous_state;
}


bool FlagGuard::previousState() const
{
    return m_previous_state;
}