overrid compon tree cell render compon tree tree object valu sel expand leaf row focu param valu mutabl tree node valu mutabl tree node valu user object compon tree cell render compon tree valu sel expand leaf row focu param valu label label lab label set icon icon icon resourc loader wrapper instanc lookup icon valu icon lab set icon icon set tooltip type type model facad model element valu type model facad uml valu valu uml diagram type uml diagram valu label type buffer buf buffer buf append html buf append buf append buf append lab text buf append br buf append type buf append buf append type lab set tool tip text buf lab set tool tip text lab text 