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annotate src/gui/locale.cc @ 327:b5d6c27c308f

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anime: refactor Anime::SeriesSeason to Season class ToLocalString has also been altered to take in both season and year because lots of locales actually treat formatting seasons differently! most notably is Russian which adds a suffix at the end to notate seasons(??)
author Paper <paper@paper.us.eu.org>
date Thu, 13 Jun 2024 01:49:18 -0400
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1 #include "gui/locale.h"
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2 #include "core/strings.h"
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3
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4 #include <QApplication>
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5 #include <QDir>
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6 #include <QLocale>
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7 #include <QString>
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8 #include <QTranslator>
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9
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10 #include <QtGlobal>
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11
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12 namespace Locale {
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13
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14 std::string GetLocaleFullName(const QLocale& locale) {
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15 QString res = QLocale::languageToString(locale.language());
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16 #if QT_VERSION >= QT_VERSION_CHECK(6, 2, 0)
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17 /* silence deprecation warning for locale.country() */
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18 if (locale.territory() != QLocale::AnyTerritory)
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19 res += " (" + QLocale::territoryToString(locale.territory()) + ")";
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20 #else
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21 if (locale.country() != QLocale::AnyCountry)
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22 res += " (" + QLocale::countryToString(locale.country()) + ")";
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23 #endif
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24 return Strings::ToUtf8String(res);
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25 }
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26
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27 Locale::Locale() {
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28 RefreshAvailableLocales();
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29 SetActiveLocale(QLocale("en_US"));
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30 }
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31
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32 Locale::Locale(const std::string& name) {
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33 RefreshAvailableLocales();
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34 SetActiveLocale(QLocale(Strings::ToQString(name)));
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35 }
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36
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37 QLocale Locale::GetLocale() const {
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38 return _locale;
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39 }
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40
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41 std::vector<QLocale> Locale::GetAvailableLocales() const {
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42 return _available_translations;
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43 }
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44
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45 void Locale::RefreshAvailableLocales() {
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46 _available_translations.clear();
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47
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48 /* we will always have en_US */
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49 _available_translations.push_back(QLocale("en_US"));
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50
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51 QDir dir(":/locale");
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52 if (!dir.exists())
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53 return;
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54
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55 QStringList translations = dir.entryList({"*.qm"}, QDir::Files);
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56
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57 _available_translations.reserve(translations.size());
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58 for (const QString& str : translations)
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59 _available_translations.push_back(QLocale(str.mid(0, str.lastIndexOf("."))));
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60 }
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61
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62 bool Locale::IsLocaleAvailable(const QLocale& locale) const {
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63 for (const QLocale& l : _available_translations)
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64 if (l == locale)
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65 return true;
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66 return false;
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67 }
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68
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69 bool Locale::SetActiveLocale(const QLocale& locale) {
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70 if (!IsLocaleAvailable(locale) || !qApp)
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71 return false;
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72
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73 if (_locale == locale)
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74 return true; /* we're... already on this locale :) */
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75
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76 _locale = locale;
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77 QLocale::setDefault(_locale);
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78
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79 /* we can still do stuff even if one thing fails! */
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80 bool return_value = true;
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81
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82 const QString name = _locale.name();
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83 if (!SwitchTranslator(_translator, QString(":/locale/%1.qm").arg(name)))
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84 return_value = false;
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85
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86 const QString path = qApp->applicationDirPath();
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87 if (!SwitchTranslator(_translator_qt, path + QString("/translations/qt_%1.qm").arg(name))) {
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88 /* Sometimes Qt will have proper translations for the language, but not the specific
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89 * country. In that case, we still want to use that language. */
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90 const int underscore_index = name.lastIndexOf("_");
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91 if (!underscore_index)
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92 return false;
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93
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94 const QString short_name = name.mid(0, underscore_index);
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95 if (!SwitchTranslator(_translator_qt, path + QString("/translations/qt_%1.qm").arg(short_name)))
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96 return_value = false;
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97 }
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98
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99 return return_value;
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100 }
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101
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102 bool Locale::SwitchTranslator(QTranslator& translator, const QString& path) {
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103 qApp->removeTranslator(&translator);
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104
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105 if (!translator.load(path))
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106 return false;
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107
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108 qApp->installTranslator(&translator);
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109 return true;
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110 }
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111
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112 } // namespace Locale