firePropertyChange("width", oldWidth, width);
changeSupport.firePropertyChange("width", oldWidth, width);
  public void setWidth(int newWidth)  {    int	oldWidth = width;    if (newWidth < minWidth)      width = minWidth;    else if (newWidth > maxWidth)      width = maxWidth;    else      width = newWidth;    if (width == oldWidth)      return;    // We do have a constant field COLUMN_WIDTH_PROPERTY,    // however, tests show that the actual fired property name is 'width'    // and even Sun's API docs say that this constant field is obsolete and    // not used.    firePropertyChange("width", oldWidth, width);  }