{
        GridLayout layout = new GridLayout();
        int margin = -5;
        int spacing = 3;
        layout.marginTop = margin;
        layout.marginLeft = margin;
        layout.marginRight = margin;
        layout.marginBottom = margin;
        layout.horizontalSpacing = spacing;
        layout.verticalSpacing = spacing;
        buttonComposite.setLayout(layout);
      }