* are placed in a half circle above a steering wheel
* @param elements List of the selectable values. There should be only a few
* @return
*/
private Slider addSlider(List<String> elements) {
Slider slider = new Slider(metic);
setFont(slider);
for (String s : elements) {
slider.add(s);
}
slider.setSelected(0);
slider.setPaintLabels(true);
add(slider,new MaximalGridLayoutConstraints(ECellPosition.LEFT));
return slider;
}