yuzu/configuration: Make all widgets and dialogs aware of language changes

To prepare for translation support, this makes all of the widgets
cognizant of the language change event that occurs whenever
installTranslator() is called and automatically retranslates their text
where necessary.

This is important as calling the backing UI's retranslateUi() is often
not enough, particularly in cases where we add our own strings that
aren't controlled by it. In that case we need to manually refresh the
strings ourselves.

1 files changed, 25 insertions, 8 deletions

diff --git a/src/yuzu/configuration/configure_audio.cpp b/src/yuzu/configuration/configure_audio.cpp
index 110842eb2..f370c690f 100644
--- a/src/yuzu/configuration/configure_audio.cpp
+++ b/src/yuzu/configuration/configure_audio.cpp
@@ -4,6 +4,8 @@
 
 #include <memory>
 
+#include <QSignalBlocker>
+
 #include "audio_core/sink.h"
 #include "audio_core/sink_details.h"
 #include "core/core.h"
@@ -15,19 +17,15 @@ ConfigureAudio::ConfigureAudio(QWidget* parent)
     : QWidget(parent), ui(std::make_unique<Ui::ConfigureAudio>()) {
     ui->setupUi(this);
 
-    ui->output_sink_combo_box->clear();
-    ui->output_sink_combo_box->addItem(QString::fromUtf8(AudioCore::auto_device_name));
-    for (const char* id : AudioCore::GetSinkIDs()) {
-        ui->output_sink_combo_box->addItem(QString::fromUtf8(id));
-    }
+    InitializeAudioOutputSinkComboBox();
 
     connect(ui->volume_slider, &QSlider::valueChanged, this,
             &ConfigureAudio::SetVolumeIndicatorText);
-
-    SetConfiguration();
     connect(ui->output_sink_combo_box, qOverload<int>(&QComboBox::currentIndexChanged), this,
             &ConfigureAudio::UpdateAudioDevices);
 
+    SetConfiguration();
+
     const bool is_powered_on = Core::System::GetInstance().IsPoweredOn();
     ui->output_sink_combo_box->setEnabled(!is_powered_on);
     ui->audio_device_combo_box->setEnabled(!is_powered_on);
@@ -49,8 +47,9 @@ void ConfigureAudio::SetConfiguration() {
 }
 
 void ConfigureAudio::SetOutputSinkFromSinkID() {
-    int new_sink_index = 0;
+    [[maybe_unused]] const QSignalBlocker blocker(ui->output_sink_combo_box);
 
+    int new_sink_index = 0;
     const QString sink_id = QString::fromStdString(Settings::values.sink_id);
     for (int index = 0; index < ui->output_sink_combo_box->count(); index++) {
         if (ui->output_sink_combo_box->itemText(index) == sink_id) {
@@ -92,6 +91,14 @@ void ConfigureAudio::ApplyConfiguration() {
         static_cast<float>(ui->volume_slider->sliderPosition()) / ui->volume_slider->maximum();
 }
 
+void ConfigureAudio::changeEvent(QEvent* event) {
+    if (event->type() == QEvent::LanguageChange) {
+        RetranslateUI();
+    }
+
+    QWidget::changeEvent(event);
+}
+
 void ConfigureAudio::UpdateAudioDevices(int sink_index) {
     ui->audio_device_combo_box->clear();
     ui->audio_device_combo_box->addItem(QString::fromUtf8(AudioCore::auto_device_name));
@@ -102,6 +109,16 @@ void ConfigureAudio::UpdateAudioDevices(int sink_index) {
     }
 }
 
+void ConfigureAudio::InitializeAudioOutputSinkComboBox() {
+    ui->output_sink_combo_box->clear();
+    ui->output_sink_combo_box->addItem(QString::fromUtf8(AudioCore::auto_device_name));
+
+    for (const char* id : AudioCore::GetSinkIDs()) {
+        ui->output_sink_combo_box->addItem(QString::fromUtf8(id));
+    }
+}
+
 void ConfigureAudio::RetranslateUI() {
     ui->retranslateUi(this);
+    SetVolumeIndicatorText(ui->volume_slider->sliderPosition());
 }