a009e25004
It is very important to use exactly the same way across all Qt versions we need to support. Otherwise, it will break interchange between Valentina versions built on different Qt versions.
74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
/************************************************************************
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**
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** @file vdatastreamenum.h
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** @author Roman Telezhynskyi <dismine(at)gmail.com>
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** @date 21 12, 2018
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**
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** @brief
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** @copyright
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** This source code is part of the Valentina project, a pattern making
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** program, whose allow create and modeling patterns of clothing.
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** Copyright (C) 2015 Valentina project
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** <https://gitlab.com/smart-pattern/valentina> All Rights Reserved.
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**
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** Valentina is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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** Valentina 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 Valentina. If not, see <http://www.gnu.org/licenses/>.
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**
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*************************************************************************/
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#ifndef DATASTREAM_ENUM_H
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#define DATASTREAM_ENUM_H
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#include <QDataStream>
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#include <type_traits>
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// (de)serialize enums into QDataStream
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// It is very important to use exactly the same way across all Qt versions we need to support. Otherwise, it will break
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// interchange between Valentina versions built on different Qt versions.
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#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
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template <typename T>
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typename std::enable_if<std::is_enum<T>::value, QDataStream &>::type&
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operator<<(QDataStream &s, const T &t)
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{
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return s << static_cast<typename std::underlying_type<T>::type>(t);
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}
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template <typename T>
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typename std::enable_if<std::is_enum<T>::value, QDataStream &>::type&
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operator>>(QDataStream &s, T &t)
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{
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return s >> reinterpret_cast<typename std::underlying_type<T>::type &>(t);
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}
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#endif
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#if QT_VERSION < QT_VERSION_CHECK(5, 9, 0)
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template <typename Enum>
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inline QDataStream &operator<<(QDataStream &s, QFlags<Enum> e)
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{
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return s << static_cast<int>(e);
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}
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template <typename Enum>
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inline QDataStream &operator>>(QDataStream &s, QFlags<Enum> &e)
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{
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int v;
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s >> v;
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e = static_cast<QFlags<Enum>>(v);
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return s;
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}
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#endif
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#endif // DATASTREAM_ENUM_H
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