JExtendedTree.java 文件源码

public void processMouseEvent(MouseEvent e) {
    if (e instanceof MouseWheelEvent) {
        Component target = JExtendedTree.this.getParent();
        if (target == null || !(target instanceof JViewport))
            target = JExtendedTree.this;
        MouseEvent mwe = SwingUtilities.convertMouseEvent(
                JExtendedTree.this, (MouseWheelEvent)e, target);
        target.dispatchEvent((MouseWheelEvent)mwe);
    } else {
        super.processMouseEvent((MouseEvent)e);
    }
}