simSpeedScale.addListener(SWT.Selection, e ->
{
double speed = Math.pow(SIM_SPEED_SCALE_STEP_FACTOR, simSpeedScale.getSelection() - SIM_SPEED_SCALE_STEPS);
simSpeedScale.addListener(SWT.Selection, e ->
{
double speed = Math.pow(SIM_SPEED_SCALE_STEP_FACTOR, simSpeedScale.getSelection() - SIM_SPEED_SCALE_STEPS);