private void initOperators() {
if(hScrollBarOper == null && getHorizontalScrollBar() != null && getHorizontalScrollBar().isVisible()) {
hScrollBarOper = new JScrollBarOperator(getHorizontalScrollBar());
hScrollBarOper.copyEnvironment(this);
hScrollBarOper.setVisualizer(new EmptyVisualizer());
}
if(vScrollBarOper == null && getVerticalScrollBar() != null && getVerticalScrollBar().isVisible()) {
vScrollBarOper = new JScrollBarOperator(getVerticalScrollBar());
vScrollBarOper.copyEnvironment(this);
vScrollBarOper.setVisualizer(new EmptyVisualizer());
}
}