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https://gitlab.linphone.org/BC/public/linphone-desktop.git
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100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
/*
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* utils.hpp
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* Copyright (C) 2017-2018 Belledonne Communications, Grenoble, France
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Created on: February 2, 2017
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* Author: Ronan Abhamon
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*/
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#ifndef UTILS_H_
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#define UTILS_H_
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#include <QObject>
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#include <QString>
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// =============================================================================
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/*
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* Define telling g++ that a 'break' statement has been deliberately omitted
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* in switch block.
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*/
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#ifndef UTILS_NO_BREAK
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#if defined(__GNUC__) && __GNUC__ >= 7
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#define UTILS_NO_BREAK __attribute__((fallthrough))
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#else
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#define UTILS_NO_BREAK
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#endif // if defined(__GNUC__) && __GNUC__ >= 7
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#endif // ifndef UTILS_NO_BREAK
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namespace Utils {
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inline QString coreStringToAppString (const std::string &str) {
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return QString::fromLocal8Bit(str.c_str(), int(str.size()));
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}
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inline std::string appStringToCoreString (const QString &str) {
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return qPrintable(str);
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}
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// Reverse function of strstr.
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char *rstrstr (const char *a, const char *b);
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// Returns the same path given in parameter if `filePath` exists.
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// Otherwise returns a safe path with a unique number before the extension.
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QString getSafeFilePath (const QString &filePath, bool *soFarSoGood = nullptr);
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// Connect once to a member function.
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template<typename Func1, typename Func2>
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static inline QMetaObject::Connection connectOnce (
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typename QtPrivate::FunctionPointer<Func1>::Object *sender,
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Func1 signal,
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typename QtPrivate::FunctionPointer<Func2>::Object *receiver,
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Func2 slot
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) {
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QMetaObject::Connection connection = QObject::connect(sender, signal, receiver, slot);
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QMetaObject::Connection *deleter = new QMetaObject::Connection();
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*deleter = QObject::connect(sender, signal, [connection, deleter] {
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QObject::disconnect(connection);
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QObject::disconnect(*deleter);
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delete deleter;
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});
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return connection;
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}
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// Connect once to a function.
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template<typename Func1, typename Func2>
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static inline QMetaObject::Connection connectOnce (
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typename QtPrivate::FunctionPointer<Func1>::Object *sender,
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Func1 signal,
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const QObject *receiver,
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Func2 slot
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) {
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QMetaObject::Connection connection = QObject::connect(sender, signal, receiver, slot);
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QMetaObject::Connection *deleter = new QMetaObject::Connection();
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*deleter = QObject::connect(sender, signal, [connection, deleter] {
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QObject::disconnect(connection);
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QObject::disconnect(*deleter);
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delete deleter;
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});
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return connection;
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}
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}
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#endif // UTILS_H_
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