javax.swing.plaf.basic

Class BasicTreeUI.TreeIncrementAction

java.lang.Object

javax.swing.AbstractAction

javax.swing.plaf.basic.BasicTreeUI.TreeIncrementAction

All Implemented Interfaces:

ActionListener ， Serializable ， Cloneable ， EventListener ， Action

Enclosing class:

BasicTreeUI

public class BasicTreeUI.TreeIncrementAction
extends AbstractAction

TreeIncrementAction用于处理上/下动作。 选择根据方向上下移动。

Field Summary

Fields

Modifier and Type	Field and Description
protected int	direction 指定调整选择的方向。

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
TreeIncrementAction(int direction, String name)

方法摘要

Modifier and Type	Method and Description
void	actionPerformed(ActionEvent e) 发生动作时调用。
boolean	isEnabled() 如果启用该操作，则返回true。

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

字段详细信息

direction

protected int direction

指定调整选择的方向。

构造方法详细信息

TreeIncrementAction

public TreeIncrementAction(int direction,
                           String name)

方法详细信息

actionPerformed

public void actionPerformed(ActionEvent e)

说明从界面复制： ActionListener

发生动作时调用。

isEnabled

public boolean isEnabled()

描述从类别复制： AbstractAction

如果启用该操作，则返回true。

Specified by:

isEnabled在界面 Action

重写：

isEnabled在 AbstractAction

结果

如果启用该操作，则为true，否则为false

另请参见：

Action.isEnabled()