Use GIF animation icons on jtree nodes

Class nodeimageobserver implements imageobserver {
Jtree tree;

Defaulttreemodel model;

Vector nodes = new vector ();

Public nodeimageobserver (jtree tree ){
Super ();
This. Tree = tree;
This. Model = (defaulttreemodel) tree. GetModel ();
}

Public void add (defaultmutabletreenode node ){
For (INT I = 0; I <nodes. Size (); ++ I ){
Defaultmutabletreenode temp = (defaultmutabletreenode) nodes. Get (I );
If (temp. Equals (node ))
Return;
}
Nodes. Add (node );
}

Nodeimageobserver (jtree tree, vector nodes ){
This. Tree = tree;
This. Model = (defaulttreemodel) tree. GetModel ();
This. nodes = nodes;
}

Public Boolean imageupdate (image IMG, int flags, int X, int y, int W,
Int h ){
If (flags & (framebits | allbits ))! = 0 ){
For (INT I = 0; I <nodes. Size (); ++ I ){
Treenode node = (treenode) nodes. Get (I );
Treepath Path = new treepath (model. getpathtoroot (node ));
Java. AWT. Rectangle rect = tree. getpathbounds (PATH );
If (rect! = NULL ){
Tree. repaint (rect );
}
}
}
Return (flags & (allbits | abort) = 0;
}
}

Class mytree extends jtree {
Public defaulttreemodel model;

Public mytree (){
Super ();
Setcellrenderer (New iconrenderer ());

Model = new defatretreemodel (null );
This. setmodel (model );
}

Class iconrenderer extends defatretreecellrenderer {

Public component gettreecellrenderercomponent (jtree tree, object value,
Boolean Sel, Boolean expanded, Boolean leaf, int row,
Boolean hasfocus ){

Super. gettreecellrenderercomponent (tree, value, Sel, expanded,
Leaf, row, hasfocus );
Defaultmutabletreenode node = (defaultmutabletreenode) value;
Imageicon gificon = new imageicon ("node.gif ");
Nodeimageobserver observer = new nodeimageobserver (tree );
Observer. Add (node );
Gificon. setimageobserver (observer );
Seticon (gificon );
Return this;
}
}
}