Module java.desktop

Package javax.swing.plaf

Class PopupMenuUI

java.lang.Object

javax.swing.plaf.ComponentUI

javax.swing.plaf.PopupMenuUI

直接已知的子类:

BasicPopupMenuUI, MultiPopupMenuUI

       public abstract class PopupMenuUI extends ComponentUI
      

JPopupMenu的可插拔外观接口。

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	PopupMenuUI()	子类调用的构造函数。

Method Summary

Modifier and Type	Method	Description
Popup	getPopup(JPopupMenu popup, int x, int y)	返回将负责显示JPopupMenu的Popup。
boolean	isPopupTrigger(MouseEvent e)	返回给定的MouseEvent是否是平台的弹出菜单触发事件。

Methods declared in class javax.swing.plaf.ComponentUI

contains, createUI, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMaximumSize, getMinimumSize, getPreferredSize, installUI, paint, uninstallUI, update

Methods declared in class java.lang.Object

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

Constructor Details

PopupMenuUI

             protected PopupMenuUI()
            

子类调用的构造函数。

Method Details

isPopupTrigger

             public boolean isPopupTrigger(MouseEvent e)
            

返回给定的MouseEvent是否是平台的弹出菜单触发事件。

参数:

e - 一个MouseEvent

返回:

如果MouseEvent e是弹出菜单触发事件，则返回true

自版本:

1.3

getPopup

             public Popup getPopup(JPopupMenu popup, int x, int y)
            

返回将负责显示JPopupMenu的Popup。

参数:

popup - 请求Popup的JPopupMenu

x - 要显示Popup的屏幕x位置

y - 要显示Popup的屏幕y位置

返回:

将显示JPopupMenu的Popup

自版本:

1.4