How to create modal dialog with image - javafx-2

Question

I have this very simple modal dialog:
public class DialogPanels
{
public void initClosemainAppDialog(final Stage primaryStage)
{
primaryStage.setOnCloseRequest(new EventHandler<WindowEvent>()
{
#Override
public void handle(WindowEvent event)
{
event.consume(); // Do nothing on close request
// Dialog Stage init
final Stage dialog = new Stage();
// If you want to freeze the background during dialog appearence set Modality.APPLICATION_MODAL
// or to allow clicking on the mainstage components set Modality.NONE
// and set dialog.showAndWait();
dialog.initModality(Modality.APPLICATION_MODAL);
dialog.initOwner(primaryStage);
// Frage - Label
Label label = new Label("Exit from the program");
// Button "Yes"
Button okBtn = new Button("Yes");
okBtn.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent event)
{
//primaryStage.close();
//dialog.close();
//Platform.exit();
System.exit(0);
}
});
// Button "No"
Button cancelBtn = new Button("No");
cancelBtn.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent event)
{
primaryStage.show();
dialog.close();
}
});
// Layout for the Button
HBox hbox = new HBox();
hbox.setSpacing(10);
hbox.setAlignment(Pos.CENTER);
hbox.getChildren().add(okBtn);
hbox.getChildren().add(cancelBtn);
// Layout for the Label and hBox
VBox vbox = new VBox();
vbox.setAlignment(Pos.CENTER);
vbox.setSpacing(10);
vbox.getChildren().add(label);
vbox.getChildren().add(hbox);
// Stage
Scene scene = new Scene(vbox, 450, 150, Color.WHITESMOKE);
dialog.setScene(scene);
dialog.show();
}
});
}
}
I want to add image and to make it to look like this:
But I admin that it's too complex for my short knowledge to get the appropriate result. Can you show me how I can split the dialog, add second background and make my code to look the same as this example please?

Answer 1

Have a look at the ControlsFX project, they have some sophisticated dialogs and it's open source, so you can look up how it's done. For example, your dialog looks like this confirmation dialog of ControlsFX:
There is also support for custom dialogs.
€dit:
With the "show Masthead" option enabled it actually looks exactly like it: