Maven module :un.engine : engine-ui :
Class : un.engine.ui.widget.WLeaf
Extends/Implements : un.engine.ui.widget.AbstractWidget
Subclasses : -

a leaf widget, can not have any children.
author  Johann Sorel

Variables : -
Functions : WLeaf, getOnSreenPosition, setEffectiveExtent

public void WLeaf ()

public Tuple getOnSreenPosition (Widget child)


Overide method to send a dirty event when value changes.
param  extent
public void setEffectiveExtent (Extent extent)