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annotate src/gui/locale.cc @ 198:bc1ae1810855

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dep/animia: switch from using classes to global functions the old idea was ok, but sort of hackish; this method doesn't use classes at all, and this way (especially important!) we can do wayland stuff AND x11 at the same time, which wasn't really possible without stupid workarounds in the other method
author Paper <mrpapersonic@gmail.com>
date Sun, 24 Dec 2023 02:59:42 -0500
parents 975a3f0965e2
children 862d0d8619f6
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1 #include "gui/locale.h"
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2 #include "core/strings.h"
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4 #include <QTranslator>
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5 #include <QLocale>
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6 #include <QDir>
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7 #include <QString>
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8 #include <QApplication>
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9
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10 #include <QDebug>
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12 #include <iostream>
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13
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14 namespace Locale {
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15
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16 std::string GetLocaleFullName(const QLocale& locale) {
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17 QString res = QLocale::languageToString(locale.language());
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18 if (locale.country() != QLocale::AnyCountry)
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19 res += " (" + QLocale::countryToString(locale.country()) + ")";
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20 return Strings::ToUtf8String(res);
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21 }
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23 Locale::Locale() {
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24 RefreshAvailableLocales();
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25 SetActiveLocale(QLocale("en_US"));
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26 }
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27
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28 Locale::Locale(const std::string& name) {
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29 RefreshAvailableLocales();
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30 SetActiveLocale(QLocale(Strings::ToQString(name)));
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31 }
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32
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33 QLocale Locale::GetLocale() const {
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34 return _locale;
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35 }
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37 std::vector<QLocale> Locale::GetAvailableLocales() const {
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38 return _available_translations;
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39 }
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40
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41 void Locale::RefreshAvailableLocales() {
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42 _available_translations.clear();
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43
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44 /* we will always have en_US */
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45 _available_translations.push_back(QLocale("en_US"));
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46
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47 QDir dir(":/locale");
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48 if (!dir.exists())
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49 return;
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50
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51 QStringList translations = dir.entryList({"*.qm"}, QDir::Files);
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52
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53 _available_translations.reserve(translations.size());
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54 for (const QString& str : translations)
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55 _available_translations.push_back(QLocale(str.mid(0, str.lastIndexOf("."))));
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56 }
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58 bool Locale::IsLocaleAvailable(const QLocale& locale) const {
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59 for (const QLocale& l : _available_translations)
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60 if (l == locale)
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61 return true;
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62 return false;
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63 }
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65 bool Locale::SetActiveLocale(const QLocale& locale) {
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66 if (!IsLocaleAvailable(locale) || !qApp)
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67 return false;
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69 if (_locale == locale)
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70 return true; /* we're... already on this locale :) */
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71
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72 _locale = locale;
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73 QLocale::setDefault(_locale);
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74
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75 /* we can still do stuff even if one thing fails! */
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76 bool return_value = true;
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77
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78 const QString name = _locale.name();
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79 if (!SwitchTranslator(_translator, QString(":/locale/%1.qm").arg(name)))
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80 return_value = false;
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81
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82 const QString path = qApp->applicationDirPath();
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83 if (!SwitchTranslator(_translator_qt, path + QString("/translations/qt_%1.qm").arg(name))) {
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84 /* Sometimes Qt will have proper translations for the language, but not the specific
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85 country. In that case, we still want to use that language. */
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86 const int underscore_index = name.lastIndexOf("_");
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87 if (!underscore_index)
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88 return false;
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89
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90 const QString short_name = name.mid(0, underscore_index);
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91 if (!SwitchTranslator(_translator_qt, path + QString("/translations/qt_%1.qm").arg(short_name)))
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92 return_value = false;
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93 }
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94
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95 return return_value;
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96 }
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97
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98 bool Locale::SwitchTranslator(QTranslator& translator, const QString& path) {
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99 qApp->removeTranslator(&translator);
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100
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101 if (!translator.load(path))
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102 return false;
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103
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104 qApp->installTranslator(&translator);
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105 return true;
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106 }
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108 }