/**
* Removes the scale listener.
*
* @param sl the sl
*/
public void removeScaleListener(final ScaleListener sl) {
OptionEventDispatcher.remove(sl);
}
/**
* Removes the background listener.
*
* @param bl the bl
*/
public void removeBackgroundListener(final BackgroundListener bl) {
OptionEventDispatcher.remove(bl);
}
/**
* Adds the scale listener.
*
* @param sl the sl
*/
public void addScaleListener(final ScaleListener sl) {
OptionEventDispatcher.add(sl);
}
/**
* Adds the background listener.
*
* @param bl the bl
*/
public void addBackgroundListener(final BackgroundListener bl) {
if (bl == null) return;
OptionEventDispatcher.add(bl);
}