Get a Control coordinates in the Screen

Question

Hi all,
I've a little problem... I'd like to display a ContextMenu when left clicking on a button. I've managed that part, but the context menu is displayed at the mouse position.
What I'd like is to display the menu on the right of the button ( buttonXmax ) but I can't find the absolute X value of a control.
Any ideas ?
thanks before,
Jonathan

Answer 1

import javafx.application.Application;
import javafx.event.*;
import javafx.scene.*;
import javafx.scene.control.*;
import javafx.stage.*;
import javafx.geometry.Side;
public class ContextM extends Application {
    public static void main(String[] args) {
        Application.launch(args);
    @Override
    public void start(Stage primaryStage) {
        Group root = new Group();
        Scene scene = new Scene(root, 300, 250);
        final ContextMenu contextMenu = new ContextMenu();
        final MenuItem menuItem1 = new MenuItem("MenuItem1");
        final MenuItem menuItem2 = new MenuItem("MenuItem2");
        contextMenu.getItems().addAll(menuItem1, menuItem2);
        final Button buttonXmax = new Button();
        buttonXmax.setLayoutX(100);
        buttonXmax.setLayoutY(80);
        buttonXmax.setText("Get context");
        buttonXmax.setOnAction(new EventHandler<ActionEvent>() {
            public void handle(ActionEvent event) {
                contextMenu.show(buttonXmax, Side.RIGHT, 0, 0);
        root.getChildren().add(buttonXmax);
        primaryStage.setScene(scene);
        primaryStage.show();
}