27
28 /**
29 * An abstract adapter class for receiving component events.
30 * The methods in this class are empty. This class exists as
31 * convenience for creating listener objects.
32 * <P>
33 * Extend this class to create a <code>ComponentEvent</code> listener
34 * and override the methods for the events of interest. (If you implement the
35 * <code>ComponentListener</code> interface, you have to define all of
36 * the methods in it. This abstract class defines null methods for them
37 * all, so you can only have to define methods for events you care about.)
38 * <P>
39 * Create a listener object using your class and then register it with a
40 * component using the component's <code>addComponentListener</code>
41 * method. When the component's size, location, or visibility
42 * changes, the relevant method in the listener object is invoked,
43 * and the <code>ComponentEvent</code> is passed to it.
44 *
45 * @see ComponentEvent
46 * @see ComponentListener
47 * @see <a href="http://docs.oracle.com/javase/tutorial/uiswing/events/componentlistener.html">Tutorial: Writing a Component Listener</a>
48 *
49 * @author Carl Quinn
50 * @since 1.1
51 */
52 public abstract class ComponentAdapter implements ComponentListener {
53 /**
54 * Invoked when the component's size changes.
55 */
56 public void componentResized(ComponentEvent e) {}
57
58 /**
59 * Invoked when the component's position changes.
60 */
61 public void componentMoved(ComponentEvent e) {}
62
63 /**
64 * Invoked when the component has been made visible.
65 */
66 public void componentShown(ComponentEvent e) {}
67
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27
28 /**
29 * An abstract adapter class for receiving component events.
30 * The methods in this class are empty. This class exists as
31 * convenience for creating listener objects.
32 * <P>
33 * Extend this class to create a <code>ComponentEvent</code> listener
34 * and override the methods for the events of interest. (If you implement the
35 * <code>ComponentListener</code> interface, you have to define all of
36 * the methods in it. This abstract class defines null methods for them
37 * all, so you can only have to define methods for events you care about.)
38 * <P>
39 * Create a listener object using your class and then register it with a
40 * component using the component's <code>addComponentListener</code>
41 * method. When the component's size, location, or visibility
42 * changes, the relevant method in the listener object is invoked,
43 * and the <code>ComponentEvent</code> is passed to it.
44 *
45 * @see ComponentEvent
46 * @see ComponentListener
47 * @see <a href="https://docs.oracle.com/javase/tutorial/uiswing/events/componentlistener.html">Tutorial: Writing a Component Listener</a>
48 *
49 * @author Carl Quinn
50 * @since 1.1
51 */
52 public abstract class ComponentAdapter implements ComponentListener {
53 /**
54 * Invoked when the component's size changes.
55 */
56 public void componentResized(ComponentEvent e) {}
57
58 /**
59 * Invoked when the component's position changes.
60 */
61 public void componentMoved(ComponentEvent e) {}
62
63 /**
64 * Invoked when the component has been made visible.
65 */
66 public void componentShown(ComponentEvent e) {}
67
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