com.alee.extended.tree

Class NodeImageObserver

java.lang.Object

com.alee.extended.tree.NodeImageObserver

All Implemented Interfaces:

java.awt.image.ImageObserver

public class NodeImageObserver
extends java.lang.Object
implements java.awt.image.ImageObserver

Custom image observer for async tree loader icons.

Field Summary

Fields

Modifier and Type	Field and Description
protected AsyncUniqueNode	node Observed node.
protected WebAsyncTree	tree Updated tree.

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

Constructors

Constructor and Description
NodeImageObserver(WebAsyncTree tree, AsyncUniqueNode node) Constructs default node observer.

Method Summary

Modifier and Type	Method and Description
boolean	imageUpdate(java.awt.Image img, int flags, int x, int y, int w, int h) Updates loader icon view in tree cell.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

tree

protected WebAsyncTree tree

Updated tree.

node

protected AsyncUniqueNode node

Observed node.

Constructor Detail

NodeImageObserver

public NodeImageObserver(WebAsyncTree tree,
                         AsyncUniqueNode node)

Constructs default node observer.

Parameters:

tree - updated tree

node - observed node

Method Detail

imageUpdate

public boolean imageUpdate(java.awt.Image img,
                           int flags,
                           int x,
                           int y,
                           int w,
                           int h)

Updates loader icon view in tree cell.

Specified by:

imageUpdate in interface java.awt.image.ImageObserver

Parameters:

img - image being observed

flags - bitwise inclusive OR of flags

x - x coordinate

y - y coordinate

w - width

h - height

Returns:

false if the infoflags indicate that the image is completely loaded, true otherwise