qBittorrent
compare.h
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1 /*
2  * Bittorrent Client using Qt and libtorrent.
3  * Copyright (C) 2021 Mike Tzou (Chocobo1)
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License
7  * as published by the Free Software Foundation; either version 2
8  * of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18  *
19  * In addition, as a special exception, the copyright holders give permission to
20  * link this program with the OpenSSL project's "OpenSSL" library (or with
21  * modified versions of it that use the same license as the "OpenSSL" library),
22  * and distribute the linked executables. You must obey the GNU General Public
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27  */
28 
29 #pragma once
30 
31 #include <Qt>
32 #include <QtGlobal>
33 
34 #ifndef Q_OS_WIN
35 #define QBT_USE_QCOLLATOR
36 #include <QCollator>
37 #endif
38 
39 class QString;
40 
41 namespace Utils::Compare
42 {
43 #ifdef QBT_USE_QCOLLATOR
44  template <Qt::CaseSensitivity caseSensitivity>
46  {
47  public:
49  {
50  m_collator.setNumericMode(true);
51  m_collator.setCaseSensitivity(caseSensitivity);
52  }
53 
54  int operator()(const QString &left, const QString &right) const
55  {
56  return m_collator.compare(left, right);
57  }
58 
59  private:
60  QCollator m_collator;
61  };
62 #else
63  int naturalCompare(const QString &left, const QString &right, Qt::CaseSensitivity caseSensitivity);
64 
65  template <Qt::CaseSensitivity caseSensitivity>
66  class NaturalCompare
67  {
68  public:
69  int operator()(const QString &left, const QString &right) const
70  {
71  return naturalCompare(left, right, caseSensitivity);
72  }
73  };
74 #endif
75 
76  template <Qt::CaseSensitivity caseSensitivity>
78  {
79  public:
80  bool operator()(const QString &left, const QString &right) const
81  {
82  return (m_comparator(left, right) < 0);
83  }
84 
85  private:
87  };
88 }
int operator()(const QString &left, const QString &right) const
Definition: compare.h:54
NaturalCompare< caseSensitivity > m_comparator
Definition: compare.h:86
bool operator()(const QString &left, const QString &right) const
Definition: compare.h:80