JTreeTable.java 文件源码

/**
 * updateUI is overridden to set the colors of the Tree's renderer to
 * match that of the table.
 */
@Override
public void updateUI ()
{
    super.updateUI();

    // Make the tree's cell renderer use the table's cell selection
    // colors.
    TreeCellRenderer tcr = getCellRenderer();

    if (tcr instanceof DefaultTreeCellRenderer) {
        DefaultTreeCellRenderer dtcr = ((DefaultTreeCellRenderer) tcr);

        // For 1.1 uncomment this, 1.2 has a bug that will cause an
        // exception to be thrown if the border selection color is
        // null.
        dtcr.setBorderSelectionColor(null);
        dtcr.setTextSelectionColor(
                UIManager.getColor("Table.selectionForeground"));
        dtcr.setBackgroundSelectionColor(
                UIManager.getColor("Table.selectionBackground"));
    }
}