< prev index next >

src/java.desktop/share/classes/java/awt/event/ComponentEvent.java

Print this page

        

*** 45,60 **** * this class defines the events that indicate changes in * a component's size, position, or visibility. * <P> * This low-level event is generated by a component object (such as a * List) when the component is moved, resized, rendered invisible, or made ! * visible again. The event is passed to every <code>ComponentListener</code> ! * or <code>ComponentAdapter</code> object which registered to receive such ! * events using the component's <code>addComponentListener</code> method. ! * (<code>ComponentAdapter</code> objects implement the ! * <code>ComponentListener</code> interface.) Each such listener object ! * gets this <code>ComponentEvent</code> when the event occurs. * <p> * An unspecified behavior will be caused if the {@code id} parameter * of any particular {@code ComponentEvent} instance is not * in the range from {@code COMPONENT_FIRST} to {@code COMPONENT_LAST}. * --- 45,60 ---- * this class defines the events that indicate changes in * a component's size, position, or visibility. * <P> * This low-level event is generated by a component object (such as a * List) when the component is moved, resized, rendered invisible, or made ! * visible again. The event is passed to every {@code ComponentListener} ! * or {@code ComponentAdapter} object which registered to receive such ! * events using the component's {@code addComponentListener} method. ! * ({@code ComponentAdapter} objects implement the ! * {@code ComponentListener} interface.) Each such listener object ! * gets this {@code ComponentEvent} when the event occurs. * <p> * An unspecified behavior will be caused if the {@code id} parameter * of any particular {@code ComponentEvent} instance is not * in the range from {@code COMPONENT_FIRST} to {@code COMPONENT_LAST}. *
*** 101,133 **** * JDK 1.1 serialVersionUID */ private static final long serialVersionUID = 8101406823902992965L; /** ! * Constructs a <code>ComponentEvent</code> object. * <p> This method throws an ! * <code>IllegalArgumentException</code> if <code>source</code> ! * is <code>null</code>. * ! * @param source The <code>Component</code> that originated the event * @param id An integer indicating the type of event. * For information on allowable values, see * the class description for {@link ComponentEvent} ! * @throws IllegalArgumentException if <code>source</code> is null * @see #getComponent() * @see #getID() */ public ComponentEvent(Component source, int id) { super(source, id); } /** * Returns the originator of the event. * ! * @return the <code>Component</code> object that originated ! * the event, or <code>null</code> if the object is not a ! * <code>Component</code>. */ public Component getComponent() { return (source instanceof Component) ? (Component)source : null; } --- 101,133 ---- * JDK 1.1 serialVersionUID */ private static final long serialVersionUID = 8101406823902992965L; /** ! * Constructs a {@code ComponentEvent} object. * <p> This method throws an ! * {@code IllegalArgumentException} if {@code source} ! * is {@code null}. * ! * @param source The {@code Component} that originated the event * @param id An integer indicating the type of event. * For information on allowable values, see * the class description for {@link ComponentEvent} ! * @throws IllegalArgumentException if {@code source} is null * @see #getComponent() * @see #getID() */ public ComponentEvent(Component source, int id) { super(source, id); } /** * Returns the originator of the event. * ! * @return the {@code Component} object that originated ! * the event, or {@code null} if the object is not a ! * {@code Component}. */ public Component getComponent() { return (source instanceof Component) ? (Component)source : null; }
< prev index next >