import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
-import javax.swing.JInternalFrame;
+import jalview.jbgui.ClassicJInternalFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.event.ChangeEvent;
protected JTextField thresholdValue = new JTextField(20);
- protected JInternalFrame frame;
+ protected ClassicJInternalFrame frame;
protected JButton ok = new JButton();