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annotate src/gui/locale.cc @ 193:0ad2507c3e60

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dep/animia: cmake: check for the objc runtime library
author Paper <mrpapersonic@gmail.com>
date Thu, 07 Dec 2023 01:56:39 -0500
parents 9613d72b097e
children 975a3f0965e2
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1 #include "gui/locale.h"
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2 #include "core/strings.h"
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3 #include <QTranslator>
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4 #include <QLocale>
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5 #include <QDir>
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6 #include <QString>
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7 #include <QApplication>
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8 #include <iostream>
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9
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10 namespace Locale {
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11
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12 std::string GetLocaleFullName(const QLocale& locale) {
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13 QString res = QLocale::languageToString(locale.language());
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14 if (locale.country() != QLocale::AnyCountry)
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15 res += " (" + QLocale::countryToString(locale.country()) + ")";
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16 return Strings::ToUtf8String(res);
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17 }
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18
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19 Locale::Locale() {
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20 RefreshAvailableLocales();
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21
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22 /* default to en_US */
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23 if (!IsLocaleAvailable(QLocale()))
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24 SetActiveLocale(QLocale("en_US"));
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25 else /* TODO: is this needed? */
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26 SetActiveLocale(QLocale());
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27 }
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28
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29 Locale::Locale(const std::string& name) {
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30 RefreshAvailableLocales();
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31 SetActiveLocale(QLocale(Strings::ToQString(name)));
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32 }
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33
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34 QLocale Locale::GetLocale() const {
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35 return _locale;
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36 }
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38 std::vector<QLocale> Locale::GetAvailableLocales() const {
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39 return _available_translations;
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40 }
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41
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42 void Locale::RefreshAvailableLocales() {
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43 _available_translations.clear();
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44
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45 /* we will always have en_US */
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46 _available_translations.push_back(QLocale("en_US"));
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47
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48 QDir dir(":/locale");
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49 if (!dir.exists())
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50 return;
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51
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52 QStringList translations = dir.entryList({"*.qm"}, QDir::Files);
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53
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54 _available_translations.reserve(translations.size());
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55 for (const QString& str : translations) {
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56 _available_translations.push_back(QLocale(str.mid(0, str.lastIndexOf("."))));
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57 }
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58 }
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60 bool Locale::IsLocaleAvailable(const QLocale& locale) const {
109
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61 for (const QLocale& l : _available_translations)
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62 if (l == locale)
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63 return true;
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64 return false;
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65 }
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66
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67 bool Locale::SetActiveLocale(const QLocale& locale) {
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68 if (!IsLocaleAvailable(locale))
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69 return false;
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70 if (_locale == locale)
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71 return true; /* we're... already on this locale :) */
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72
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73 _locale = locale;
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74 QLocale::setDefault(_locale);
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75
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76 /* we can still do stuff even if one thing fails! */
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77 bool return_value = true;
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78
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79 const QString name = _locale.name();
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80 if (!SwitchTranslator(_translator, QString(":/locale/%1.qm").arg(name)))
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81 return_value = false;
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82
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83 const QString path = qApp->applicationDirPath();
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84 if (!SwitchTranslator(_translator_qt, path + QString("/translations/qt_%1.qm").arg(name))) {
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85 /* Sometimes Qt will have proper translations for the language, but not the specific
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86 country. In that case, we still want to use that language. */
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87 const int underscore_index = name.lastIndexOf("_");
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88 if (!underscore_index)
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89 return false;
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90
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91 const QString short_name = name.mid(0, underscore_index);
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92 if (!SwitchTranslator(_translator_qt, path + QString("/translations/qt_%1.qm").arg(short_name)))
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93 return_value = false;
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94 }
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95
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96 return return_value;
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97 }
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98
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99 bool Locale::SwitchTranslator(QTranslator& translator, const QString& path) {
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100 qApp->removeTranslator(&translator);
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101
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102 if (!translator.load(path))
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103 return false;
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104
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105 qApp->installTranslator(&translator);
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106 return true;
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107 }
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108
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109 }