fTabSizeTextBox.setEnabled(!selection);
	private void controlChanged(Button button) {		ControlData data= (ControlData) button.getData();		boolean selection= button.getSelection();		String newValue= data.getValue(selection);			fWorkingValues.put(data.getKey(), newValue);		updatePreview();				if (PREF_TAB_CHAR.equals(data.getKey())) {			fTabSizeTextBox.setEnabled(!selection);			updateStatus(new StatusInfo());			if (selection) {				fTabSizeTextBox.setText((String)fWorkingValues.get(PREF_TAB_SIZE));			}		}	}