How to use

getOffsetLeft

method

in

com.google.gwt.user.client.Element

public Point translatePoints(Point p) {
 List<String> list = new ArrayList<String>(3);
 list.add("position");
 list.add("left");
 list.add("top");
 Map<String, String> map = getStyleAttribute(list);
 boolean relative = "relative".equals(map.get("position"));
 int l = Util.parseInt(map.get("left"), -11234);
 int t = Util.parseInt(map.get("top"), -11234);
 l = l != -11234 ? l : (relative ? 0 : dom.getOffsetLeft());
 t = t != -11234 ? t : (relative ? 0 : dom.getOffsetTop());
 Point o = getXY();
 return new Point(p.x - o.x + l, p.y - o.y + t);
}

/***************************************
 * Scrolls to a certain tab bar widget.
 *
 * @param rTab The widget to scroll to
 */
void scrollTo(Widget rTab)
{
  if (isTabScrollingNecessary())
  {
    int nTabBarLeft  = parsePosition(rTabBar.getElement());
    int nTabBarWidth = getTabBarWidth();
    int nWidgetLeft  = rTab.getElement().getOffsetLeft() + nTabBarLeft;
    int nWidgetRight = getRightOfWidget(rTab) + nTabBarLeft;
    int nScrollDiff  = 0;
    if (nWidgetRight > nTabBarWidth)
    {
      nScrollDiff =  nTabBarWidth - nWidgetRight;
      nWidgetLeft += nScrollDiff;
    }
    if (nWidgetLeft < 0)
    {
      nScrollDiff = -nWidgetLeft;
    }
    scrollTabBar(nScrollDiff);
  }
}