Non-ASCII path support(partial)

I didn't find other solutions on the Internet.
I found the plugins are loaded when creating MainWindow,
so this solution should be fine?

main.cpp

@@ -9,6 +9,17 @@
 
 int main(int argc, char *argv[])
 {
+    // A trick to handle non-ascii path
+    // The application cannot find the plugins when the path contains non ascii characters.
+    // However, the plugins will be load after creating MainWindow(or QApplication?).
+    // QDir will handle the path correctly.
+    QDir* pluginDir = new QDir;
+    if(pluginDir->cd("plugins")) // has plugins folder
+    {
+        qputenv("QT_PLUGIN_PATH", pluginDir->absolutePath().toLocal8Bit());
+    }
+    delete pluginDir;
+
     QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
     QTextCodec::setCodecForLocale(QTextCodec::codecForName("UTF-8"));
     QDir *langPath = new QDir();