Outline.java 文件源码

@Override
public JToolTip createToolTip() {
    JToolTip t = toolTip;
    toolTip = null;
    if (t != null) {
        t.addMouseMotionListener(new MouseMotionAdapter() { // #233642

            boolean initialized = false;

            @Override
            public void mouseMoved(MouseEvent e) {
                if (!initialized) {
                    initialized = true; // ignore the first event
                } else {
                    // hide the tooltip if mouse moves over it
                    ToolTipManager.sharedInstance().mousePressed(e);
                }
            }
        });
        return t;
    } else {
        return super.createToolTip();
    }
}