AdminSettingForm show and hide for different user role

src/mainwindow.h

@@ -7,6 +7,7 @@ namespace Ui {
 	class MainWindow;
 }
 class GUIMessageDialog;
+class QTabWidget;
 class MainWindow : public QMainWindow
 {
 	Q_OBJECT
@@ -25,6 +26,8 @@ private:
 	GUIMessageDialog* msgDialog = nullptr;
 	StdOutRedirector* redir = nullptr;
 	QTextEdit* console = nullptr;
+    QTabWidget* tab= nullptr;
+    int admin_tab_index = -1;
 };
 
 #endif // MAINWINDOW_H