/** draw the arrows between items */
public void paintComponent(Graphics g) {
super.paintComponent(g);
if (_glist != null && _glist.size() > 1) {
Graphics2D g2 = (Graphics2D) g;
Arrow leftArrow = new Arrow();
leftArrow.setColor(Color.BLACK);
Arrow rightArrow = new Arrow();
rightArrow.setColor(Color.RED);
Iterator<GNode> iter = _glist.iterator();
while (iter.hasNext()) {
GNode nCur = iter.next();
if (nCur.left != null) {
leftArrow.setLine(nCur.getStart(), nCur.left.getEnd());
leftArrow.draw(g2);
}
if (nCur.right != null) {
rightArrow.setLine(nCur.getStart(), nCur.right.getEnd());
rightArrow.draw(g2);
}
}
}
}
