public class BasicTreeUI.ComponentHandler extends ComponentAdapter implements ActionListener
| Modifier and Type | Field and Description | 
|---|---|
| protected JScrollBar | scrollBar
              正在调整的ScrollBar。 
             | 
| protected Timer | timer
              定时器用于滚动滚动条中,滚动条正在调整。 
             | 
| Constructor and Description | 
|---|
| ComponentHandler() | 
| Modifier and Type | Method and Description | 
|---|---|
| void | actionPerformed(ActionEvent ae)
              由于计时器而公开。 
             | 
| void | componentMoved(ComponentEvent e)
              当组件的位置更改时调用。 
             | 
| protected JScrollPane | getScrollPane()
              返回容纳JTree的JScrollPane,如果没有找到,返回null。 
             | 
| protected void | startTimer()
              创建,如果需要,并启动一个计时器,以检查是否需要调整边界大小。 
             | 
componentHidden, componentResized, componentShownprotected Timer timer
protected JScrollBar scrollBar
public void componentMoved(ComponentEvent e)
ComponentAdapter 
          componentMoved在接口 
            ComponentListener 
           componentMoved在 
            ComponentAdapter 
           protected void startTimer()
protected JScrollPane getScrollPane()
public void actionPerformed(ActionEvent ae)
actionPerformed in interface  
            ActionListener 
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