[Users] layerNode UI

[Florent Gravin]

Hi,

I try to custom the NodeUI of my layerTreePanel...
I have a subclass : 

MyNs.LayerNodeUI = Ext.extend(GeoExt.tree.LayerNodeUI

But i can't find the way to affect this UI to the Node..
The point is the line :

this.defaultUI = this.defaultUI || GeoExt.tree.LayerNodeUI in the constructor of GeoExt.tree.TreeNode, 

i would like to have MyNs.LayerNodeUI in this.defaultUI but couldn't fix the thing..

this is how i instanciate my Tree : 

this.root = new GeoExt.tree.OverlayLayerContainer({
 layerStore: this.mapPanel.layers,
 leaf: false,
 expanded: true,
 cls: 'layerTree',
});

i tried things like this :
default: {
    uiProvider: MyNs.TreeNode,
    ui: MyNs.TreeNode,
    defaultUI: MyNs.TreeNode
}

but those arguments are'nt passed on the call of createNode()
do you have any idea ?

thks
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