private static int getComboBoxBaselineResizeBehavior(JComboBox cb) {
if (cb.isEditable()) {
return getBaselineResizeBehavior(cb.getEditor().getEditorComponent());
}
ListCellRenderer renderer = cb.getRenderer();
if (renderer == null) {
if (brbListCellRenderer == null) {
brbListCellRenderer = new DefaultListCellRenderer();
}
renderer = brbListCellRenderer;
}
Object value = null;
Object prototypeValue = cb.getPrototypeDisplayValue();
if (prototypeValue != null) {
value = prototypeValue;
} else if (cb.getModel().getSize() > 0) {
value = cb.getModel().getElementAt(0);
}
if (value != null) {
if (brbList == null) {
brbList = new JList();
}
Component component = renderer.getListCellRendererComponent(brbList, value, -1, false, false);
return getBaselineResizeBehavior(component);
}
return BRB_OTHER;
}
public void paintCurrentValue(Graphics g, Rectangle bounds, boolean hasFocus) {
ListCellRenderer renderer = comboBox.getRenderer();
Component c;
Dimension d;
c =
renderer.getListCellRendererComponent(
listBox, comboBox.getSelectedItem(), -1, false, false);
c.setFont(comboBox.getFont());
if (comboBox.isEnabled()) {
c.setForeground(comboBox.getForeground());
c.setBackground(comboBox.getBackground());
} else {
c.setForeground(UIManager.getColor("ComboBox.disabledForeground"));
c.setBackground(UIManager.getColor("ComboBox.disabledBackground"));
}
d = c.getPreferredSize();
currentValuePane.paintComponent(g, c, comboBox, bounds.x, bounds.y, bounds.width, d.height);
}