updateChildrenViewports();
    public void onDraw(Renderer r) {                if (this.buttonState == WidgetButtonStateType.BUTTON_DOWN) {            for (int i = 0; i < getQuantity(); i++) {                Widget w = (Widget) getChild(i);                w.setX(w.getX() + 1);                w.setY(w.getY() - 1);            }        }        updateChildrenViewports();        super.onDraw(r);        for (int i = 0; i < getQuantity(); i++) {            Widget w = (Widget) getChild(i);            w.doAlignment(getSize(), getInsets());        }    }