public UndefinedBooleanExpressionPanel(UndefinedBooleanExpression expr) {
setLayout(new FlowLayout(FlowLayout.LEFT));
setBackground(Color.white);
// setBorder
// (BorderFactory.createLineBorder(Color.red,
// 2));
if (expr.getLeftHandSide() instanceof Keyword
&& expr.getRightHandSide() instanceof EnumLevelList) {
Keyword keyword = (Keyword) expr.getLeftHandSide();
EnumLevelList ll = (EnumLevelList) expr.getRightHandSide();
// System.out.println("keyword " + keyword);
JLabel keywordLabel = new JLabel(keyword.toString() + ARROW);
// keywordLabel.setFont(new Font("Arial",10,Font.BOLD));
add(keywordLabel);
if (ll.isNumericList()) add(getNumericLevels(ll));
else add(getStringLevels(ll));
} else add(new JLabel("Improperly defined boolean expression"));
}
