mirror of
https://github.com/qbittorrent/qBittorrent.git
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a64bb1a990
Now the comparison function/class should be constructed before usage. This change also make it easier to plug in into various containers which will require a compare function type (such as std::set).
88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/*
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* Bittorrent Client using Qt and libtorrent.
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* Copyright (C) 2021 Mike Tzou (Chocobo1)
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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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* In addition, as a special exception, the copyright holders give permission to
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* link this program with the OpenSSL project's "OpenSSL" library (or with
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* modified versions of it that use the same license as the "OpenSSL" library),
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* and distribute the linked executables. You must obey the GNU General Public
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* License in all respects for all of the code used other than "OpenSSL". If you
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* modify file(s), you may extend this exception to your version of the file(s),
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* but you are not obligated to do so. If you do not wish to do so, delete this
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* exception statement from your version.
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*/
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#pragma once
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#include <Qt>
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#include <QtGlobal>
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#ifndef Q_OS_WIN
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#define QBT_USE_QCOLLATOR
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#include <QCollator>
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#endif
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class QString;
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namespace Utils::Compare
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{
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#ifdef QBT_USE_QCOLLATOR
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template <Qt::CaseSensitivity caseSensitivity>
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class NaturalCompare
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{
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public:
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NaturalCompare()
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{
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m_collator.setNumericMode(true);
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m_collator.setCaseSensitivity(caseSensitivity);
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}
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int operator()(const QString &left, const QString &right) const
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{
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return m_collator.compare(left, right);
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}
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private:
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QCollator m_collator;
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};
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#else
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int naturalCompare(const QString &left, const QString &right, Qt::CaseSensitivity caseSensitivity);
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template <Qt::CaseSensitivity caseSensitivity>
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class NaturalCompare
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{
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public:
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int operator()(const QString &left, const QString &right) const
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{
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return naturalCompare(left, right, caseSensitivity);
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}
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};
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#endif
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template <Qt::CaseSensitivity caseSensitivity>
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class NaturalLessThan
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{
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public:
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bool operator()(const QString &left, const QString &right) const
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{
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return (m_comparator(left, right) < 0);
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}
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private:
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NaturalCompare<caseSensitivity> m_comparator;
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};
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}
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