private Component buildConstraintCombo() {
		JPanel panel = new JPanel(new BorderLayout());
		constraintComboBox = new GComboBox<>();
		constraintComboBox.setRenderer(new ConstraintComboBoxCellRenderer());
		constraintComboBox.addActionListener(constraintComboBoxListener);
		panel.add(constraintComboBox, BorderLayout.CENTER);
		updateConstraintComboBoxModel();
		return panel;
	}
Panel for display a single constraint entry within a column.
Ghidra/Framework/Docking/src/main/java/docking/widgets/table/constraint/dialog/ConstraintFilterPanel.java