private void doExpand() { if (treeExpander.isExpandEnabled()) { treeExpander.expandTree(); } }
@Override public void actionPerformed(ActionEvent e) { final TreeExpander treeExpander = getTreeExpander(); checkNotNull(treeExpander); if (!treeExpander.isExpandEnabled()) { return; } treeExpander.expandTree(); }
@Override public void update(ActionEvent e) { final TreeExpander treeExpander = getTreeExpander(); e.getPresentation().setEnabledAndVisible(treeExpander.isExpandEnabled()); } }