How to use

setRadioGroup

method

in

com.smartgwt.client.widgets.IButton

private void addRadioRoleButton(final Role role) {
  IButton roleButton = new IButton(getRoleMessage(role));
  roleButton.setShowRollOver(false);
  roleButton.setActionType(SelectionType.RADIO);
  roleButton.setRadioGroup(ROLE_GROUP);
  roleButton.addClickHandler(new ClickHandler() {
    @Override
    public void onClick(ClickEvent clickEvent) {
      handler.onSelectRole(role);
    }
  });
  getRadioButtons().put(role, roleButton);
  toolStrip.addMember(roleButton);
}

btnPoint.setWidth(btnPoint.getTitle().length() * GsfLayout.buttonFontWidth + GsfLayout.buttonOffset);
btnPoint.setActionType(SelectionType.RADIO);
btnPoint.setRadioGroup("drawType");
btnPoint.addClickHandler(new ClickHandler() {
  public void onClick(ClickEvent event) {
btnLine.setWidth(btnLine.getTitle().length() * GsfLayout.buttonFontWidth + GsfLayout.buttonOffset);
btnLine.setActionType(SelectionType.RADIO);
btnLine.setRadioGroup("drawType");
btnLine.addClickHandler(new ClickHandler() {
  public void onClick(ClickEvent event) {
btnPolygon.setWidth(btnPolygon.getTitle().length() * GsfLayout.buttonFontWidth + GsfLayout.buttonOffset);
btnPolygon.setActionType(SelectionType.RADIO);
btnPolygon.setRadioGroup("drawType");
btnPolygon.addClickHandler(new ClickHandler() {
  public void onClick(ClickEvent event) {