public class

BasicTreeUI.ComponentHandler

extends ComponentAdapter
implements ActionListener

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

Class Overview

Updates the preferred size when scrolling (if necessary).

Summary

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

Public Constructors
	BasicTreeUI.ComponentHandler()

Public Methods
void	actionPerformed(ActionEvent ae) Public as a result of Timer.
void	componentMoved(ComponentEvent e) Invoked when the component's position changes.

Protected Methods
JScrollPane	getScrollPane() Returns the JScrollPane housing the JTree, or null if one isn't found.
void	startTimer() Creates, if necessary, and starts a Timer to check if need to resize the bounds.

[Expand]

Inherited Methods

From class java.awt.event.ComponentAdapter

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

From interface java.awt.event.ActionListener

From interface java.awt.event.ComponentListener

Fields

protected JScrollBar scrollBar

ScrollBar that is being adjusted.

protected Timer timer

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

Public Constructors

public BasicTreeUI.ComponentHandler ()

Public Methods

public void actionPerformed (ActionEvent ae)

Public as a result of Timer. If the scrollBar is null, or not adjusting, this stops the timer and updates the sizing.

public void componentMoved (ComponentEvent e)

Invoked when the component's position changes.

Protected Methods

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.

Interfaces

Classes