context.setFillStyle(CssColor.make(0, 0, 255));
context.setStrokeStyle(CssColor.make(0, 0, 255));
}
public void onMouseUp(MouseUpEvent event) {
double distance = getDistance(lastMouseDown, new Point(event.getX(), event.getY()));
lastMouseDown = null;
context.closePath();
bubble.showFill(true);
if(distance < 5.0) {