Retranslate mainwindow ui.

--HG--
branch : feature

src/app/valentina/mainwindow.cpp

@@ -1118,6 +1118,18 @@ void MainWindow::showEvent( QShowEvent *event )
     isInitialized = true;//first show windows are held
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void MainWindow::changeEvent(QEvent *event)
+{
+    if (event->type() == QEvent::LanguageChange)
+    {
+        // retranslate designer form (single inheritance approach)
+        ui->retranslateUi(this);
+    }
+    // remember to call base class implementation
+    QMainWindow::changeEvent(event);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 /**
  * @brief closeEvent handle after close window.

src/app/valentina/mainwindow.h

@@ -158,6 +158,7 @@ signals:
 protected:
     virtual void       keyPressEvent(QKeyEvent *event) Q_DECL_OVERRIDE;
     virtual void       showEvent(QShowEvent *event) Q_DECL_OVERRIDE;
+    virtual void       changeEvent(QEvent* event) Q_DECL_OVERRIDE;
     virtual void       closeEvent(QCloseEvent *event) Q_DECL_OVERRIDE;
     virtual void       customEvent(QEvent * event) Q_DECL_OVERRIDE;
     virtual void       CleanLayout() Q_DECL_OVERRIDE;