completionPanel.add(showCompletions_);
completionPanel.add(checkboxPref("Show help tooltip after function completions", prefs_.showSignatureTooltips()));
completionPanel.add(checkboxPref("Insert spaces around equals for argument completions", prefs_.insertSpacesAroundEquals()));
DialogTabLayoutPanel tabPanel = new DialogTabLayoutPanel();
tabPanel.setSize("435px", "460px");
tabPanel.add(editingPanel, "Editing");
tabPanel.add(displayPanel, "Display");
tabPanel.add(completionPanel, "Completion");
tabPanel.selectTab(0);
add(tabPanel);
}