title: Truncate NSTextView?
body: <p>I tried using defaultParagraphStyle, but I can't seem to get a NSTextView (programmatically added) to truncate text with an ellipsis (...).</p>
  
  <p>I am setting the frame during the initWithFrame (150, 20) and I also set the maxSize (150,20). However, text simply overflows. If I set the height where half a line is visible, I can see the top half of the text, however I would like to see the text truncated with ellipsis instead.</p>
  
  <p>How can I do this?</p>