Extend window size according to window caption/label in qooxdoo

I have a window with a caption and two buttons. The window caption is longer than two buttons and I got three dots in the window caption. Is there some way to fix it I mean get rid of dots and see the full caption? Maybe try other ways for example use label in window body but I am afraid of the result will be the same.

var win = new qx.ui.window.Window("First Window");
win.setLayout(new qx.ui.layout.HBox());
win.setShowMinimize(false);

var yesBtn = new qx.ui.form.Button("Yes");
var noBtn = new qx.ui.form.Button("No");
win.add(yesBtn);
win.add(noBtn);

this.getRoot().add(win, {left:20, top:20});
win.open();

Here's an example showing the way to do it dynamically. You can copy/paste this into the playground at https://qooxdoo.org/qxl.playground/#%7B%22code%22%3A%22%22%7D

function onAppear()
{
  let styles;
  let resolvedFont;
  let content;
  let min;
  let captionWidget = this.getChildControl("title");
  let font = captionWidget.getFont();

  // Extra space needed to account for buttons, e.g., maximize, close.
  // This could be made dynamic using `getShowMaximize()`, etc.
  // Here, assigned a fixed value that works with maximize and close buttons
  let excess = 70;

  if (font)
  {
    resolvedFont = qx.theme.manager.Font.getInstance().resolve(font);
    styles = resolvedFont.getStyles();
  }
  else
  {
    styles = qx.bom.getDefaultStyles();
  }

  content = this.getCaption() || "A";
  min = qx.bom.Label.getTextSize(content, styles);
  this.setMinWidth(min.width + excess);
}

function addWindow(root, caption, top)
{
  var win = new qx.ui.window.Window(caption);

  win.setLayout(new qx.ui.layout.HBox());
  win.setShowMinimize(false);

  var yesBtn = new qx.ui.form.Button("Yes");
  var noBtn = new qx.ui.form.Button("No");
  win.add(yesBtn);
  win.add(noBtn);

  root.add(win, {left:20, top:top});
  win.open();

  win.addListener("appear", onAppear);
}

addWindow(this.getRoot(), "First Window with a long caption", 20);
addWindow(this.getRoot(), "Second Window", 120);