this.currentEditorModel = NULLMODEL;
this.currentEditorModel = new LibRootModel((LibraryHandle) current);
	public void setCurrentEditorModel( Object current )	{		Object old = this.currentEditorModel;		if (currentEditorModel == null || current instanceof LibraryHandle)		{			this.currentEditorModel = NULLMODEL;		}		else		{			this.currentEditorModel = current;		}				if (currentEditorModel == old)		{			return;		}		PropertyChangeEvent event = new PropertyChangeEvent(this, CURRENTMODEL,old, this.currentEditorModel );		firePropertyChangeEvent(event);	}