@Override
public void actionPerformed(ActionEvent arg0) {
JPanel dialog = MapillaryFilterChooseSigns.getInstance();
JOptionPane pane =
new JOptionPane(dialog, JOptionPane.PLAIN_MESSAGE, JOptionPane.OK_CANCEL_OPTION);
JDialog dlg = pane.createDialog(Main.parent, tr("Choose signs"));
dlg.setVisible(true);
if ((int) pane.getValue() == JOptionPane.OK_OPTION)
MapillaryFilterDialog.getInstance().refresh();
dlg.dispose();
}
@Override
public void actionPerformed(ActionEvent arg0) {
MapillaryFilterDialog.getInstance().reset();
}