public class BasicPopupMenuUI extends PopupMenuUI
Modifier and Type | Field and Description |
---|---|
protected JPopupMenu |
popupMenu |
Constructor and Description |
---|
BasicPopupMenuUI() |
Modifier and Type | Method and Description |
---|---|
static ComponentUI |
createUI(JComponent x) |
void |
installDefaults() |
protected void |
installKeyboardActions() |
protected void |
installListeners() |
void |
installUI(JComponent c)
配置指定的组件适当的外观和感觉。
|
boolean |
isPopupTrigger(MouseEvent e) |
protected void |
uninstallDefaults() |
protected void |
uninstallKeyboardActions() |
protected void |
uninstallListeners() |
void |
uninstallUI(JComponent c)
逆转形态,完成指定的组件在
installUI 。
|
getPopup
contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMaximumSize, getMinimumSize, getPreferredSize, paint, update
protected JPopupMenu popupMenu
public static ComponentUI createUI(JComponent x)
public void installUI(JComponent c)
ComponentUI
ComponentUI
实例被安装在指定组件的UI代理。这种方法应该完全配置的组件外观和感觉,包括以下内容:
LayoutManager
组件上的必要。PropertyChangeListener
变化适当。installUI
方法重写,继承类
ComponentUI
c
-组件,UI代理被安装
ComponentUI.uninstallUI(javax.swing.JComponent)
,
JComponent.setUI(javax.swing.plaf.ComponentUI)
,
JComponent.updateUI()
public void installDefaults()
protected void installListeners()
protected void installKeyboardActions()
public void uninstallUI(JComponent c)
ComponentUI
installUI
。这个方法被调用时,这个
UIComponent
实例被作为指定组件的UI代理删除。这种方法应该撤消配置进行
installUI
,小心留下的
JComponent
实例在干净的状态(没有多余的听众,外观和感觉的特定属性的对象,等)。这应包括以下几个方面:
uninstallUI
方法重写,继承类
ComponentUI
c
-从这个UI代理被删除的组件;这种说法常常被忽视,但可能如果UI对象是无状态的,共享由多个组件
ComponentUI.installUI(javax.swing.JComponent)
,
JComponent.updateUI()
protected void uninstallDefaults()
protected void uninstallListeners()
protected void uninstallKeyboardActions()
public boolean isPopupTrigger(MouseEvent e)
isPopupTrigger
方法重写,继承类
PopupMenuUI
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