before task parser

testDB/testDBpgSQL/mainwindow.cpp

@@ -11,20 +11,18 @@ MainWindow::MainWindow(QWidget *parent)
 {
     ui->setupUi(this);
 
+    //Задаём два пункта с текстом локалей в комбобоксе
+    ui->comboBox->addItems(QStringList() << "English" << "Русский");
+
     m_instructorsAndTraineesWidget = new InstructorsAndTraineesWidget(this);
 
-    if(! m_instructorsAndTraineesWidget->authorizationIsCompleted())
-    {
-        delete m_instructorsAndTraineesWidget;
-        delete ui;
-        throw(std::exception());
-    }
+    connect(this, &MainWindow::signal_LanguageChanged, m_instructorsAndTraineesWidget, &InstructorsAndTraineesWidget::slot_LanguageChanged);
 
     ui->horizontalLayout->addWidget(m_instructorsAndTraineesWidget);
 
     this->move(0, 0);
-    this->showNormal();
-    //this->showMaximized();
+    //this->showNormal();
+    this->showMaximized();
 }
 
 MainWindow::~MainWindow()
@@ -32,3 +30,27 @@ MainWindow::~MainWindow()
     delete m_instructorsAndTraineesWidget;
     delete ui;
 }
+
+void MainWindow::changeEvent(QEvent *event)
+{
+    // В случае получения события изменения языка приложения
+    if (event->type() == QEvent::LanguageChange)
+    {// переведём окно заново
+        ui->retranslateUi(this);
+    }
+}
+
+void MainWindow::on_comboBox_currentIndexChanged(const QString &arg1)
+{
+    QString language;
+
+    if(arg1 == QStringLiteral("English"))
+        language = QString("en_EN");
+    else
+        language = QString("ru_RU");
+
+    qtLanguageTranslator.load(QString("translations/testDBpgSQL_") + language, ".");
+    qApp->installTranslator(&qtLanguageTranslator);
+
+    emit signal_LanguageChanged(language);
+}