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Add language selection option in settings

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Fixes #501
This commit is contained in:
Cameron Gutman 2021-01-30 12:14:31 -06:00
commit 69b6022afe
4 changed files with 163 additions and 6 deletions
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84
app/settings/streamingpreferences.cpp
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@ -1,6 +1,8 @@
#include "streamingpreferences.h"
#include <QSettings>
#include <QTranslator>
#include <QCoreApplication>
#define SER_STREAMSETTINGS "streamsettings"
#define SER_WIDTH "width"
@ -36,11 +38,20 @@
#define SER_REVERSESCROLL "reversescroll"
#define SER_SWAPFACEBUTTONS "swapfacebuttons"
#define SER_CAPTURESYSKEYS "capturesyskeys"
#define SER_LANGUAGE "language"
#define CURRENT_DEFAULT_VER 1
StreamingPreferences::StreamingPreferences(QObject *parent)
: QObject(parent)
: QObject(parent),
m_QmlEngine(nullptr)
{
reload();
}
StreamingPreferences::StreamingPreferences(QQmlEngine *qmlEngine, QObject *parent)
: QObject(parent),
m_QmlEngine(qmlEngine)
{
reload();
}
@ -95,6 +106,8 @@ void StreamingPreferences::reload()
uiDisplayMode = static_cast<UIDisplayMode>(settings.value(SER_UIDISPLAYMODE,
static_cast<int>(settings.value(SER_STARTWINDOWED, true).toBool() ? UIDisplayMode::UI_WINDOWED
: UIDisplayMode::UI_MAXIMIZED)).toInt());
language = static_cast<Language>(settings.value(SER_LANGUAGE,
static_cast<int>(Language::LANG_AUTO)).toInt());
// Perform default settings updates as required based on last default version
@ -108,6 +121,74 @@ void StreamingPreferences::reload()
}
}
bool StreamingPreferences::retranslate()
{
static QTranslator* translator = nullptr;
#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
if (m_QmlEngine != nullptr) {
// Dynamic retranslation is not supported until Qt 5.10
return false;
}
#endif
QTranslator* newTranslator = new QTranslator();
QString languageSuffix = getSuffixFromLanguage(language);
// Remove the old translator, even if we can't load a new one.
// Otherwise we'll be stuck with the old translated values instead
// of defaulting to English.
if (translator != nullptr) {
QCoreApplication::removeTranslator(translator);
delete translator;
translator = nullptr;
}
if (newTranslator->load(QString(":/languages/qml_") + languageSuffix)) {
qInfo() << "Successfully loaded translation for " << languageSuffix;
translator = newTranslator;
QCoreApplication::installTranslator(translator);
}
else {
qInfo() << "No translation available for " << languageSuffix;
delete newTranslator;
}
if (m_QmlEngine != nullptr) {
#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
// This is a dynamic retranslation from the settings page.
// We have to kick the QML engine into reloading our text.
m_QmlEngine->retranslate();
#else
// Unreachable below Qt 5.10 due to the check above
Q_ASSERT(FALSE);
#endif
}
else {
// This is a translation from a non-QML context, which means
// it is probably app startup. There's nothing to refresh.
}
return true;
}
QString StreamingPreferences::getSuffixFromLanguage(StreamingPreferences::Language lang)
{
switch (lang)
{
case LANG_EN:
return "en";
case LANG_FR:
return "fr";
case LANG_ZH_CN:
return "zh_cn";
case LANG_AUTO:
default:
return QLocale::system().name();
}
}
void StreamingPreferences::save()
{
QSettings settings;
@ -136,6 +217,7 @@ void StreamingPreferences::save()
settings.setValue(SER_VIDEODEC, static_cast<int>(videoDecoderSelection));
settings.setValue(SER_WINDOWMODE, static_cast<int>(windowMode));
settings.setValue(SER_UIDISPLAYMODE, static_cast<int>(uiDisplayMode));
settings.setValue(SER_LANGUAGE, static_cast<int>(language));
settings.setValue(SER_DEFAULTVER, CURRENT_DEFAULT_VER);
settings.setValue(SER_SWAPMOUSEBUTTONS, swapMouseButtons);
settings.setValue(SER_MUTEONFOCUSLOSS, muteOnFocusLoss);