/** Resets the dialog to its default state. */
 public void reset() {
   this.imported.setSelected(true);
   this.downloaded.setSelected(true);
   this.onlySigns.setEnabled(true);
   this.onlySigns.setSelected(false);
   this.user.setText("");
   this.time.setSelectedItem(TIME_LIST[0]);
   this.spinner.setValue(1);
   refresh();
 }
 @Override
 public void imagesAdded() {
   refresh();
 }