&& borderStyle[LEFT] == BorderLineStyle.NONE
&& borderStyle[BOTTOM] == BorderLineStyle.NONE
&& borderStyle[RIGHT] == BorderLineStyle.NONE
)
{
BorderLineStyle style = getBorderLineStyle(pen);
Colour colour = getWorkbookColour(pen.getLineColor());
borderStyle[TOP] = style;
borderStyle[LEFT] = style;
borderStyle[BOTTOM] = style;