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

This work for me !! In javafx

public class LabelHelper{
  public static boolean necesitaTooltip(Font font, Label label){
    Text text = new Text(label.getText());
    text.setFont(font);
    Bounds tb = text.getBoundsInLocal();
    Rectangle stencil = new Rectangle(
            tb.getMinX(), tb.getMinY(), tb.getWidth(), tb.getHeight()
    );

    Shape intersection = Shape.intersect(text, stencil);

    Bounds ib = intersection.getBoundsInLocal();
    return ib.getWidth() > label.getPrefWidth();
  }

  public static void asignarTexto(Label label, String texto){
      label.setText(texto);
      if (necesitaTooltip(label.getFont(), label)){
          Tooltip tp = new Tooltip(texto);

        label.setTooltip(tp);
      }
  }
} 

Only call a asignarTexto(label, texto) for set text a label and check if the text is overrun in the label then add a tooltip for label.