public void setSmoothScrolling(boolean val) {
    boolean old = myOptions.IS_ANIMATED_SCROLLING;
    if (old == val) return;
    myOptions.IS_ANIMATED_SCROLLING = val;
    myPropertyChangeSupport.firePropertyChange(PropNames.PROP_IS_ANIMATED_SCROLLING, old, val);
  }
public void setSmoothScrolling(boolean val)