/**
* Creates the default renderer that will be used in a non-editiable combo box. A default renderer
* will used only if a renderer has not been explicitly set with <code>setRenderer</code>.
*
* <p>This method differs from the superclass implementation in that it uses an empty border with
* wider left and right margins of 2 pixels instead of 1.
*
* @return a <code>ListCellRender</code> used for the combo box
* @see javax.swing.JComboBox#setRenderer
*/
protected ListCellRenderer createRenderer() {
if (tableCellEditor) {
return super.createRenderer();
}
BasicComboBoxRenderer renderer = new BasicComboBoxRenderer.UIResource();
renderer.setBorder(UIManager.getBorder("ComboBox.rendererBorder"));
return renderer;
}
@Override
public Component getListCellRendererComponent(
JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
String s = getText();
setOpaque(cellHasFocus || isSelected);
setToolTipText(s);
if (s.length() > 60) {
s = s.substring(0, 60) + "...";
setText(s);
}
return this;
}
public void paintComponent(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
super.paintComponent(g);
}