question: private String buildToolTip ( final CTaggedGraphNodesContainerNode node ) { final StringBuilder tooltip = new StringBuilder ( "<html>" ) ; boolean first = true ; for ( final NaviNode graphnode : node . getGraphNodes ( ) ) { if ( ! first ) { tooltip . append ( "<br>" ) ; } tooltip . append ( CNodesDisplayString . getDisplayString ( graphnode ) ) ; first = false ; } return tooltip + "</html>" ; }
target:  Generates the tooltip shown when the cursor hovers over a tag tree node that represents a container of graph nodes.