Class BasicScrollPaneUI.MouseWheelHandler

java.lang.Object

javax.swing.plaf.basic.BasicScrollPaneUI.MouseWheelHandler

All Implemented Interfaces:

MouseWheelListener, EventListener

Enclosing class:

BasicScrollPaneUI

protected class BasicScrollPaneUI.MouseWheelHandler
extends Object
implements MouseWheelListener

MouseWheelHandler is an inner class which implements the MouseWheelListener interface. MouseWheelHandler responds to MouseWheelEvents by scrolling the JScrollPane appropriately. If the scroll pane's isWheelScrollingEnabled method returns false, no scrolling occurs.

Since:

1.4

See Also:

• JScrollPane.isWheelScrollingEnabled()
• BasicScrollPaneUI.createMouseWheelListener()
• MouseWheelListener
• MouseWheelEvent

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MouseWheelHandler()	Constructs a MouseWheelHandler.

Method Summary

Modifier and Type	Method	Description
void	mouseWheelMoved(MouseWheelEvent e)	Called when the mouse wheel is rotated while over a JScrollPane.

Methods declared in class Object

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

Modifier and Type	Method	Description
protected Object	clone()	Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
boolean	equals(Object o)	Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
protected void	finalize()	Deprecated, for removal: This API element is subject to removal in a future version. May cause performance issues, deadlocks and hangs.
final Class<? extends Object>	getClass()	Answers the unique instance of java.lang.Class which represents the class of the receiver.
int	hashCode()	Answers an integer hash code for the receiver.
final void	notify()	Causes one thread which is waiting on the receiver to be made ready to run.
final void	notifyAll()	Causes all threads which are waiting on the receiver to be made ready to run.
String	toString()	Answers a string containing a concise, human-readable description of the receiver.
final void	wait()	Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
final void	wait(long time)	Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
final void	wait(long time, int frac)	Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

Constructor Details

MouseWheelHandler

protected MouseWheelHandler()

Constructs a MouseWheelHandler.

Method Details

mouseWheelMoved

public void mouseWheelMoved(MouseWheelEvent e)

Called when the mouse wheel is rotated while over a JScrollPane.

Specified by:

mouseWheelMoved in interface MouseWheelListener

Parameters:

e - MouseWheelEvent to be handled

Since:

1.4

See Also:

• MouseWheelEvent