Test for Label overrun

Question

I have a multiline label whose text has a chance of overrunning. If it does this, I want to decrease the font size until it isn\'t overrunning, or until it hits some minimum siz

Answer 1

minisu posted a way to detect an overrun in this answer: https://stackoverflow.com/a/15178908/9492864

This way works for all labeled and I tested it on Buttons with JavaFX 8. You can add a listener for example to the needsLayoutProperty:

labeled.needsLayoutProperty().addListener((observable, oldValue, newValue) -> {
   String originalString = labeled.getText();
   Text textNode = (Text) labeled.lookup(".text"); // "text" is the style class of Text
   String actualString = textNode.getText();

   boolean clipped = !actualString.isEmpty() && !originalString.equals(actualString);

   System.out.println("is " + originalString + " clipped: " + clipped);
});