tooltiploc.html

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<TITLE>Setting the Location of a Tool Tip
(Java Developers Almanac Example)
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<h3>
    e748.  
    Setting the Location of a Tool Tip</h3>

By default, when a tool tip of a component appears, it's north-west
corner appears at the same x-coordinate as the cursor and 20 pixels
lower than the y-coordinate of the cursor. To change this default
location for a component, you must override the getToolTipLocation()
method of the component.


<pre>
    // Set the location of the tool tip such that its nw corner
    // coincides with the nw corner of the button
    JButton button = new JButton(<font color="#0066ff"><i>"My Button"</i></font>) {
        public Point getToolTipLocation(MouseEvent event) {
            return new Point(0, 0);
        }
    };
    
    // Set the location of the tool tip such that its nw corner
    // coincides with the bottom center of the button
    button = new JButton(<font color="#0066ff"><i>"My Button"</i></font>) {
        public Point getToolTipLocation(MouseEvent event) {
            return new Point(getWidth()/2, getHeight());
        }
    };
    
    // Use the default tool tip location
    button = new JButton(<font color="#0066ff"><i>"My Button"</i></font>) {
        public Point getToolTipLocation(MouseEvent event) {
            return null;
        }
    };
    
    // Set the tool tip text
    <font color="#0066ff"><i>button</i></font>.setToolTipText(<font color="#0066ff"><i>"aString"</i></font>);
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