public void mouseWheelMoved(MouseWheelEvent e) {
int amount = e.getWheelRotation();
Point2D p = new Point2D.Double(e.getPoint().getX(), e.getPoint().getY());
if (amount > 0) zoomOut(p);
if (amount < 0) zoomIn(p);
}
public void mouseWheelMoved(MouseWheelEvent e) {
translateCM(e.getWheelRotation());
updateColors();
}