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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;
}
});
}