Is it possible to find the Width of a control before he's displayed ?

Question

Hi all,
I have a simple question : Is there any way to compute the size of a control (Label in my case..) before showing it in the scene ?
Thanks before,
Jonathan

Answer 1

Here is another workaround:
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.DepthTest;
import javafx.scene.Group;
import javafx.scene.*;
import javafx.scene.control.*;
import javafx.stage.Stage;
import javafx.scene.layout.*;
import javafx.geometry.Pos;
import javafx.geometry.VPos;
import javafx.scene.effect.BlendMode;
public class NodeLength extends Application {
    public static void main(String[] args) {
        Application.launch(args);
    public double getNodeWith(Node n) {
        Stage st = new Stage();
        Group g = new Group();
        g.getChildren().add(n);
        Scene scenex = new Scene(g);
        st.setScene(scenex);
        st.show();
        st.hide();
        return n.getBoundsInLocal().getWidth();
    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("Hello World");
        Group root = new Group();
        Scene scene = new Scene(root, 300, 250);
        TextField username = new TextField();
        username.setPromptText("Username");
        double d = getNodeWith(username);
        System.out.println("d = " + d);
        root.getChildren().add(username);
        primaryStage.setScene(scene);
        primaryStage.show();
}