BasicTreeUI.ComponentHandler (Java Platform SE 6)

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javax.swing.plaf.basic
class BasicTreeUI.ComponentHandler

java.lang.Object
  java.awt.event.ComponentAdapter
      javax.swing.plaf.basic.BasicTreeUI.ComponentHandler

All Implemented Interfaces:: ActionListener, ComponentListener

Enclosing class:: BasicTreeUI

public class BasicTreeUI.ComponentHandler
extends ComponentAdapter
implements ActionListener

Updates the preferred size when scrolling (if necessary).

Field Summary
`protected JScrollBar`	`scrollBar` ScrollBar that is being adjusted.
`protected Timer`	`timer` Timer used when inside a scrollpane and the scrollbar is adjusting.

Constructor Summary
`BasicTreeUI.ComponentHandler()`

Method Summary
`void`	`actionPerformed(ActionEvent ae)` Public as a result of Timer.
`void`	`componentMoved(ComponentEvent e)` Invoked when the component's position changes.
`protected JScrollPane`	`getScrollPane()` Returns the JScrollPane housing the JTree, or null if one isn't found.
`protected void`	`startTimer()` Creates, if necessary, and starts a Timer to check if need to resize the bounds.

Methods inherited from class java.awt.event.ComponentAdapter
`componentHidden, componentMoved, componentResized, componentShown`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

scrollBar

protected JScrollBar scrollBar

ScrollBar that is being adjusted.

timer

protected Timer timer

Timer used when inside a scrollpane and the scrollbar is adjusting.

Constructor Detail