javax.swing.plaf.basic

Class BasicTreeUI.TreeHomeAction

java.lang.Object

javax.swing.AbstractAction

javax.swing.plaf.basic.BasicTreeUI.TreeHomeAction

All Implemented Interfaces:

ActionListener， Serializable， Cloneable， EventListener， Action

Enclosing class:

BasicTreeUI

public class BasicTreeUI.TreeHomeAction
extends AbstractAction

treehomeaction用于处理结束/家的行动。将第一个或最后一个单元格滚动到基于方向上的可见。

Field Summary

Fields

Modifier and Type	Field and Description
protected int	direction

Fields inherited from class javax.swing.AbstractAction

changeSupport, enabled

Fields inherited from 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

构造方法摘要

构造方法

Constructor and Description
TreeHomeAction(int direction, String name)

方法摘要

Modifier and Type	Method and Description
void	actionPerformed(ActionEvent e) 当一个动作发生时调用。
boolean	isEnabled() 如果启用了动作，则返回真。

Methods inherited from class javax.swing.AbstractAction

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

Methods inherited from class java.lang.Object

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

Field Detail

direction

protected int direction

Constructor Detail

TreeHomeAction

public TreeHomeAction(int direction,
                      String name)

方法详细信息

actionPerformed

public void actionPerformed(ActionEvent e)

从接口复制的描述： ActionListener

当一个动作发生时调用。

isEnabled

public boolean isEnabled()

从阶级复制的描述： AbstractAction

如果启用了动作，则返回真。

Specified by:

isEnabled 接口 Action

重写：

isEnabled 方法重写，继承类 AbstractAction

结果

如果该操作已启用，则为假

另请参见：

Action.isEnabled()