public void paintIcon(Component c, Graphics g, int x, int y) {
int w = getIconWidth();
int h = w;
Polygon p = new Polygon();
switch (direction) {
case EAST:
p.addPoint(x + 2, y);
p.addPoint(x + w - 2, y + h / 2);
p.addPoint(x + 2, y + h - 1);
break;
case SOUTH:
p.addPoint(x, y + 2);
p.addPoint(x + w / 2, y + h - 2);
p.addPoint(x + w - 1, y + 2);
break;
}
g.fillPolygon(p);
}
