}
public Gutter createGutter(boolean overviewMode, Gutter.Position position, String cssClassName) {
Gutter gutter = Gutter.create(overviewMode, position, cssClassName, buffer);
if (viewport != null && renderer != null) {
gutter.handleDocumentChanged(viewport, renderer);
}
gutters.add(gutter);
gutter.getGutterElement().addClassName(getView().css.gutter());