import java.awt.Dimension;
import javax.swing.JFrame;
import javafx.embed.swing.JFXPanel;
import javafx.scene.control.ComboBox;
import javafx.scene.Scene;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.application.Platform;
import javax.swing.SwingUtilities;
import javax.swing.JButton;
import javax.swing.BoxLayout;
import javax.swing.JOptionPane;
import javax.swing.AbstractAction;
import javax.swing.Action;
import java.awt.event.ActionEvent;

class JFXPanelTest extends JFrame
{
    public static void main(final String[] args)
    {
        SwingUtilities.invokeLater(new Runnable()
            {
                @Override
                public void run()
                {
                    new JFXPanelTest();
                }
            });
    }

    JFXPanelTest()
    {
        final JFXPanel fxPanel = new JFXPanel();
        //
        // initialize the scene in JavaFX thread.
        //
        Platform.runLater(new Runnable()
            {
                @Override
                public void run()
                {
                    fxPanel.setScene(new Scene(new ComboBox<String>(FXCollections.<String>observableArrayList(
                        "Option 1",
                        "Option 2",
                        "Option 3"
                    ))));
                }
            });

        Action showDialog = new AbstractAction("Show Dialog")
            {
                public void actionPerformed(ActionEvent e)
                {
                    final JFXPanel fxPanel1 = new JFXPanel();
                    //
                    // initialize the scene in JavaFX thread.
                    //
                    Platform.runLater(new Runnable()
                        {
                            @Override
                            public void run()
                            {
                                fxPanel1.setScene(new Scene(new ComboBox<String>(FXCollections.<String>observableArrayList(
                                    "Option 1",
                                    "Option 2",
                                    "Option 3"
                                ))));
                            }
                        });
                    fxPanel1.setPreferredSize(new Dimension(100, 25));
                    JOptionPane.showMessageDialog(JFXPanelTest.this, fxPanel1, "Select Item", 
                                                  JOptionPane.PLAIN_MESSAGE);
                }
            };



        fxPanel.setPreferredSize(new Dimension(100, 25));
        getContentPane().setLayout(new BoxLayout(getContentPane(), BoxLayout.PAGE_AXIS));
        add(fxPanel);
        JButton showDialogButton = new JButton();
        showDialogButton.setAction(showDialog);
        add(showDialogButton);
        pack();
        setVisible(true);
    }
};