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31 results

callmanager.cpp

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    qtutils.h 4.09 KiB
    /*
     * Copyright (C) 2015-2020 by Savoir-faire Linux
     * Author: Edric Ladent Milaret <edric.ladent-milaret@savoirfairelinux.com>
     * Author: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com>
     * Author: Isa Nanic <isa.nanic@savoirfairelinux.com>
     * Author: Mingrui Zhang   <mingrui.zhang@savoirfairelinux.com>
     * Author: Aline Gondim Santos   <aline.gondimsantos@savoirfairelinux.com>
     *
     * This program 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.
     *
     * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
     */
    
    #pragma once
    
    #include <QObject>
    
    namespace Utils {
    
    template<typename Func1, typename Func2>
    void
    oneShotConnect(const typename QtPrivate::FunctionPointer<Func1>::Object* sender,
                   Func1 signal,
                   Func2 slot)
    {
        QMetaObject::Connection* const connection = new QMetaObject::Connection;
        *connection = QObject::connect(sender, signal, slot);
        QMetaObject::Connection* const disconnectConnection = new QMetaObject::Connection;
        *disconnectConnection = QObject::connect(sender, signal, [connection, disconnectConnection] {
            if (connection) {
                QObject::disconnect(*connection);
                delete connection;
            }
            if (disconnectConnection) {
                QObject::disconnect(*disconnectConnection);
                delete disconnectConnection;
            }
        });
    }
    
    template<typename Func1, typename Func2>
    void
    oneShotConnect(const typename QtPrivate::FunctionPointer<Func1>::Object* sender,
                   Func1 signal,
                   const typename QtPrivate::FunctionPointer<Func2>::Object* receiver,
                   Func2 slot)
    {
        QMetaObject::Connection* const connection = new QMetaObject::Connection;
        *connection = QObject::connect(sender, signal, receiver, slot);
        QMetaObject::Connection* const disconnectConnection = new QMetaObject::Connection;
        *disconnectConnection = QObject::connect(sender, signal, [connection, disconnectConnection] {
            if (connection) {
                QObject::disconnect(*connection);
                delete connection;
            }
            if (disconnectConnection) {
                QObject::disconnect(*disconnectConnection);
                delete disconnectConnection;
            }
        });
    }