final Spinner reminderDaysValue = new Spinner(controlsContainer, SWT.BORDER);
reminderDaysValue.setMaximum(100);
reminderDaysValue.setMinimum(1);
reminderDaysValue.setSelection(fPreferences.getInteger(DefaultPreferences.CLEAN_UP_REMINDER_DAYS_VALUE));
reminderDaysValue.setEnabled(reminderCheck.getSelection());
reminderDaysValue.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
fPreferences.putInteger(DefaultPreferences.CLEAN_UP_REMINDER_DAYS_VALUE, reminderDaysValue.getSelection());
}
});