if (tx != null && !tx.isIdentity ()) { this.affineTransform = new AffineTransform (tx); }  this.isAntiAliased = isAntiAliased; this.usesFractionalMetrics = usesFractionalMetrics;
  public FontRenderContext (AffineTransform tx, boolean isAntiAliased,                            boolean usesFractionalMetrics)  {    if (tx != null        && !tx.isIdentity ())      {        this.affineTransform = new AffineTransform (tx);      }        this.isAntiAliased = isAntiAliased;    this.usesFractionalMetrics = usesFractionalMetrics;  }