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"));
        ((DefaultTreeCellRenderer) this.getCellRenderer()).setLeafIcon(null);
        ((DefaultTreeCellRenderer) this.getCellRenderer()).setOpenIcon(null);
        ((DefaultTreeCellRenderer) this.getCellRenderer()).setClosedIcon(null);
    }
}