MouseMotionAdapter (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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Java™ Platform
Standard Ed. 6

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java.awt.event
Class MouseMotionAdapter

java.lang.Object
  java.awt.event.MouseMotionAdapter

All Implemented Interfaces:: MouseMotionListener, EventListener

Direct Known Subclasses:: BasicComboPopup.InvocationMouseMotionHandler, BasicComboPopup.ListMouseMotionHandler

public abstract class MouseMotionAdapter
extends Object
implements MouseMotionListener
extends Object
implements MouseMotionListener

An abstract adapter class for receiving mouse motion events. The methods in this class are empty. This class exists as convenience for creating listener objects.

Mouse motion events occur when a mouse is moved or dragged. (Many such events will be generated in a normal program. To track clicks and other mouse events, use the MouseAdapter.)

Extend this class to create a MouseEvent listener and override the methods for the events of interest. (If you implement the MouseMotionListener 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 the extended class and then register it with a component using the component's addMouseMotionListener method. When the mouse is moved or dragged, the relevant method in the listener object is invoked and the MouseEvent is passed to it.

Since:: 1.1
See Also:: MouseEvent, MouseMotionListener, Tutorial: Writing a Mouse Motion Listener

Constructor Summary

MouseMotionAdapter()


Method Summary

void mouseDragged(MouseEvent e)
          Invoked when a mouse button is pressed on a component and then dragged.

void mouseMoved(MouseEvent e)
          Invoked when the mouse button has been moved on a component (with no buttons no down).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Summary
`MouseMotionAdapter()`

Method Summary
`void`	`mouseDragged(MouseEvent e)` Invoked when a mouse button is pressed on a component and then dragged.
`void`	`mouseMoved(MouseEvent e)` Invoked when the mouse button has been moved on a component (with no buttons no down).

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail