How to add Scroll Pane into tabs - javafx-2

Question

I have this simple example of JavaFX tabs
primaryStage.setTitle("Tabs Test");
Group root = new Group();
Scene scene = new Scene(root, 600, 500, Color.WHITE);
TabPane tabPane = new TabPane();
BorderPane mainPane = new BorderPane();
//Create Tabs
Tab tabA = new Tab();
tabA.setText("Main Component");
//Add something in Tab
StackPane tabA_stack = new StackPane();
tabA_stack.setAlignment(Pos.CENTER);
tabA_stack.getChildren().add(new Label("Label#Tab B"));
tabA.setContent(tabA_stack);
tabPane.getTabs().add(tabA);
Tab tabB = new Tab();
tabB.setText("Second Component");
//Add something in Tab
StackPane tabB_stack = new StackPane();
tabB_stack.setAlignment(Pos.CENTER);
tabB_stack.getChildren().add(new Label("Label#Tab B"));
tabB.setContent(tabB_stack);
tabPane.getTabs().add(tabB);
Tab tabC = new Tab();
tabC.setText("Last Component");
//Add something in Tab
StackPane tabC_vBox = new StackPane();
tabC_vBox.setAlignment(Pos.CENTER);
tabC_vBox.getChildren().add(new Label("Label#Tab C"));
tabC.setContent(tabC_vBox);
tabPane.getTabs().add(tabC);
mainPane.setCenter(tabPane);
mainPane.prefHeightProperty().bind(scene.heightProperty());
mainPane.prefWidthProperty().bind(scene.widthProperty());
root.getChildren().add(mainPane);
primaryStage.setScene(scene);
primaryStage.show();
How I can add horizontal and vertical scroll Pane into the tab's body. I want to display the scroll pane only when the data is bigger than the visible area. Is this possible?

Answer 1

Instead of setting contents of tabs to StackPane, call setContent method with ScrollPane object, and set the content of this ScrollPane to the corresponding StackPane.

Answer 2

Creating a basic javafx.scene.control.ScrollPane is easy, an example can be found in the JavaDoc. Here's the code that places a ScrollPane in your first Tab:
...
final Rectangle rect = new Rectangle(200, 200, 800, 600);
rect.setFill(Color.RED);
final ScrollPane scrollPane = new ScrollPane();
scrollPane.setContent(rect);
tabA.setContent(scrollPane);
tabPane.getTabs().add(tabA);
...
You can find a lot of useful examples in the JavaFX tutorials, too.