public class BasicViewportUI extends ViewportUI
Constructor and Description |
---|
BasicViewportUI() |
Modifier and Type | Method and Description |
---|---|
static ComponentUI |
createUI(JComponent c) |
protected void |
installDefaults(JComponent c) |
void |
installUI(JComponent c)
适当地配置指定的组件的外观和感觉。
|
protected void |
uninstallDefaults(JComponent c) |
void |
uninstallUI(JComponent c)
在installUI中反转在
installUI 上完成的
installUI 。
|
contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMaximumSize, getMinimumSize, getPreferredSize, paint, update
public static ComponentUI createUI(JComponent c)
public void installUI(JComponent c)
ComponentUI
ComponentUI
实例作为指定组件上的UI委托时,将调用此方法。
该方法应该完全配置组件的外观,包括以下内容:
LayoutManager
上安装LayoutManager。 PropertyChangeListener
上创建/安装PropertyChangeListener,以便适当地检测和响应组件属性更改。 installUI
在
ComponentUI
c
- 正在安装此UI代理的组件
ComponentUI.uninstallUI(javax.swing.JComponent)
,
JComponent.setUI(javax.swing.plaf.ComponentUI)
,
JComponent.updateUI()
public void uninstallUI(JComponent c)
ComponentUI
installUI
上完成的installUI
。
当这个UIComponent
实例作为指定组件的UI委托被删除时,将调用此方法。
该方法应该撤消在installUI中执行的installUI
,小心使JComponent
实例处于干净状态(没有无关的侦听器,外观特定属性对象等)。
这应该包括以下内容:
uninstallUI
在
ComponentUI
c
- 从中删除此UI代理的组件;
这个参数经常被忽略,但如果UI对象是无状态的并且被多个组件共享,则可能会被使用
ComponentUI.installUI(javax.swing.JComponent)
,
JComponent.updateUI()
protected void installDefaults(JComponent c)
protected void uninstallDefaults(JComponent c)
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