Size of MenuItem

Question

I am using MenuButton a lot. To have a nice layout I often make the size of the button larger as needed just for nice layout purposes. What I can't get right yet is the size of the menuitems in a menubutton. It really looks bad if you have a large MenuButton and you open the menu that the contents is very small compared the button above.
Anyway to change this?

Answer 1

This is not a good solution, but I could not come up with a good solution, so you can try this - at least it seems to work for me . . .
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.*;
import javafx.scene.control.*;
import javafx.scene.layout.*;
import javafx.scene.paint.Color;
import javafx.scene.shape.*;
import javafx.scene.text.Text;
import javafx.stage.Stage;
/** Sizes the drop down menu for a menu button to at least same width as the menu button */
public class MenuButtonSizing extends Application {
  private static final String FROBOZZ = "Frobozz";
  private static final String ZORK    = "Zork";
  public static void main(String[] args) { launch(args); }
  @Override public void start(Stage stage) {
    final MenuButton menuButton = new MenuButton("XYZZY is the Magic Word");
    final Label selection = new Label();
    final VBox layout = new VBox(30);
    layout.getChildren().setAll(selection, menuButton);
    layout.setStyle("-fx-background-color: cornsilk; -fx-padding: 50;");
    stage.setScene(new Scene(layout));
    stage.show();
    // for the sizing to work correctly, the SizingMenuItem must be created
    // for the menu button after the menu button has been shown.
    SizingMenuItem frobozzItem = new SizingMenuItem(menuButton, FROBOZZ);
    frobozzItem.setOnAction(new EventHandler<ActionEvent>() {
      @Override public void handle(ActionEvent t) {
        selection.setText(FROBOZZ);
    MenuItem zorkItem = new MenuItem(ZORK);
    zorkItem.setOnAction(new EventHandler<ActionEvent>() {
      @Override public void handle(ActionEvent t) {
        selection.setText(ZORK);
    menuButton.getItems().setAll(
            frobozzItem,
            zorkItem
  class SizingMenuItem extends CustomMenuItem {
    static final double BUFFER_WIDTH = 14; // to account for the width of the padding around menu items.
    SizingMenuItem(final MenuButton menuButton, String string) {
      super();
      Text   text      = new Text(string);
      Double textWidth = text.getBoundsInParent().getWidth();
      Shape  padding = new Rectangle(
              textWidth,
              0,
              menuButton.getWidth() - textWidth - BUFFER_WIDTH,
              2
      padding.setFill(Color.TRANSPARENT);
      Label label = new Label(string, padding);
      label.setContentDisplay(ContentDisplay.RIGHT);
      label.setGraphicTextGap(0);
      setContent(label);
}