Class BasicTreeUI.TreePageAction

java.lang.Object

javax.swing.AbstractAction

javax.swing.plaf.basic.BasicTreeUI.TreePageAction

All Implemented Interfaces:: ActionListener, Serializable, Cloneable, EventListener, Action

Enclosing class:: BasicTreeUI

public class BasicTreeUI.TreePageAction extends AbstractAction

TreePageAction handles page up and page down events.

Field Summary

Modifier and Type	Field	Description
`protected int`	`direction`	Specifies the direction to adjust the selection by.

Fields declared in class javax.swing.AbstractAction

changeSupport, enabled

Fields declared in interface javax.swing.Action

ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, DISPLAYED_MNEMONIC_INDEX_KEY, LARGE_ICON_KEY, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SELECTED_KEY, SHORT_DESCRIPTION, SMALL_ICON

Constructor Summary

Constructor	Description
`TreePageAction(int direction, String name)`	Constructs a new instance of `TreePageAction`.

Method Summary

Modifier and Type	Method	Description
`void`	`actionPerformed(ActionEvent e)`	Invoked when an action occurs.

Methods declared in class javax.swing.AbstractAction

addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, isEnabled, putValue, removePropertyChangeListener, setEnabled

Methods declared in class java.lang.Object

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

Methods declared in interface javax.swing.Action

accept

Field Details

direction

protected int direction

Specifies the direction to adjust the selection by.

Constructor Details

TreePageAction

public TreePageAction(int direction, String name)

Constructs a new instance of TreePageAction.

Parameters:: direction - the direction; name - the name of action

Method Details

actionPerformed

public void actionPerformed(ActionEvent e)

Description copied from interface: ActionListener

Invoked when an action occurs.

Parameters:: e - the event to be processed

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https://docs.oracle.com/en/java/javase/17/docs/api/java.desktop/javax/swing/plaf/basic/BasicTreeUI.TreePageAction.html