title: Mediator C++ GUI sample
body: <p>I have heard that somewhere @ web I'll be able to find good C++ example of Mediator working with GUI components. But I menaged to find only that GoF sample or things from sorcemaking and similar that aren't helpful to me.</p>
  
  <p>So... do you know where that mentioned GUI sample can be found?</p>
  
  <p>Sorry for that kind of question, but that can be useful for others too.</p>