GridDataFactory.fillDefaults().grab(true, false).span(3, 1).applyTo(bar);
bar.setLayout(new RowLayout());
Button selectAll = new Button(bar, SWT.PUSH);
GridDataFactory.fillDefaults().grab(true, false).span(3, 1).applyTo(bar);
bar.setLayout(new RowLayout());
Button selectAll = new Button(bar, SWT.PUSH);