addPaintListener(new PaintListener() { @Override public void paintControl(PaintEvent e) {
addPaintListener(e -> paint(e)); addListener(SWT.Traverse, e -> { switch (e.detail) {
addPaintListener(new PaintListener() { @Override public void paintControl(PaintEvent e) {
addPaintListener(e -> paint(e)); addListener(SWT.Traverse, e -> { switch (e.detail) {