FirstRowCellEditor.java 文件源码

public boolean isCellEditable(final EventObject anEvent) {
    if (anEvent instanceof MouseEvent) {
        final MouseEvent event = (MouseEvent) anEvent;
        final int row = treeTable.rowAtPoint(event.getPoint());
        final Rectangle bounds = tree.getRowBounds(row);
        int offset = bounds.x;
        final Object node = tree.getPathForRow(row).getLastPathComponent();
        final boolean leaf = tree.getModel().isLeaf(node);
        final boolean expanded = tree.isExpanded(row);
        final TreeCellRenderer tcr = tree.getCellRenderer();
        final Component treeComponent = tcr.getTreeCellRendererComponent(
                tree, node, true, expanded, leaf, row, false);
        if (treeComponent instanceof JLabel) {
            final JLabel label = (JLabel) treeComponent;

            final Icon icon = label.getIcon();
            if (icon != null) {
                offset += icon.getIconWidth() + label.getIconTextGap();
            }

        }
        if (event.getPoint().x < offset)
            return false;
    }
    return deligate.isCellEditable(anEvent);
}