Class ComponentAdapter
- All Implemented Interfaces:
-
ComponentListener
,EventListener
- Direct Known Subclasses:
-
BasicSliderUI.ComponentHandler
,BasicTreeUI.ComponentHandler
,JViewport.ViewListener
public abstract class ComponentAdapter extends Object implements ComponentListener
Extend this class to create a ComponentEvent
listener and override the methods for the events of interest. (If you implement the ComponentListener
interface, you have to define all of the methods in it. This abstract class defines null methods for them all, so you can only have to define methods for events you care about.)
Create a listener object using your class and then register it with a component using the component's addComponentListener
method. When the component's size, location, or visibility changes, the relevant method in the listener object is invoked, and the ComponentEvent
is passed to it.
- Since:
- 1.1
- See Also:
Constructor Summary
Modifier | Constructor | Description |
---|---|---|
protected |
Constructs a ComponentAdapter . |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
void |
componentHidden |
Invoked when the component has been made invisible. |
void |
componentMoved |
Invoked when the component's position changes. |
void |
componentResized |
Invoked when the component's size changes. |
void |
componentShown |
Invoked when the component has been made visible. |
Constructor Details
ComponentAdapter
protected ComponentAdapter()
ComponentAdapter
.Method Details
componentResized
public void componentResized(ComponentEvent e)
- Specified by:
-
componentResized
in interfaceComponentListener
- Parameters:
-
e
- the event to be processed
componentMoved
public void componentMoved(ComponentEvent e)
- Specified by:
-
componentMoved
in interfaceComponentListener
- Parameters:
-
e
- the event to be processed
componentShown
public void componentShown(ComponentEvent e)
- Specified by:
-
componentShown
in interfaceComponentListener
- Parameters:
-
e
- the event to be processed
componentHidden
public void componentHidden(ComponentEvent e)
- Specified by:
-
componentHidden
in interfaceComponentListener
- Parameters:
-
e
- the event to be processed
© 1993, 2021, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/17/docs/api/java.desktop/java/awt/event/ComponentAdapter.html