svoid jTextPane_adjustTextSizeToFillParentHeight(JTextPane pane) {
  jTextPane_adjustTextSizeToFillParentHeight(pane, 100);
}

svoid jTextPane_adjustTextSizeToFillParentHeight(JTextPane pane, int countdown) {
  if (countdown < 1 || pane == null || getParent(pane) == null) ret;
  swing {
    double ratio = doubleRatio(pane.getParent().getHeight(), preferredHeight(pane));
    if (ratio == 1) ret;
    float size = pane.getFont().getSize2D();
    float newSize = (float) min(1, size*ratio);
    print("New font size: " + newSize);
    setFontSize(pane, newSize);
    awt {
      jTextPane_adjustTextSizeToFillParentHeight(pane, countdown-1);
    }
  }
}