Strange layout behaviour with TilePane

Question

here is the demo
1.rootLayout have 2 child,controlbox and contentLayout
2.3 button on controlbox
3.contentLayout will add content,when press deffrent button on controlbox
4.watch button "Add TilePane" , strange layout behaviour , what is the matter?
layout picture
|--------------------------------|                 
|           |                    |                 
|           |                    |                 
|           |                    |                 
|           |                    |                 
|controlbox |  contentLayout     |                 
| (VBox)    |   (StackPane)      |                 
|           |                    |                 
|           |                    |                 
|           |                    |                 
|           |                    |                 
|--------------------------------|               
                                        the code
import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.geometry.Pos;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.ListView;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.TilePane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class testTilePaneLayout  extends Application {
     StackPane contentLayout = new StackPane();
     //add content with 2 Button
     public void addContent(){
          VBox vbox = new VBox();
          contentLayout.getChildren().clear();
          contentLayout.getChildren().add(vbox);
          StackPane.setAlignment(vbox,Pos.CENTER);
          Button btn = new Button("Button1");     
          Button btn2= new Button("Button2");
          vbox.getChildren().add(btn);
          vbox.getChildren().add(btn2);
     //add content with 2 Button & 1 ListView
     public void addListViewContent(){
          VBox vbox = new VBox();
          contentLayout.getChildren().clear();
          contentLayout.getChildren().add(vbox);
          StackPane.setAlignment(vbox,Pos.CENTER);
          Button btn = new Button("Button1");     
          Button btn2= new Button("Button2");     
          vbox.getChildren().add(btn);
          vbox.getChildren().add(btn2);
          @SuppressWarnings("rawtypes")
          ListView listView = new ListView();
          vbox.getChildren().add(listView);
     //add content with 2 Button & 1 TilePane
     public void addTilePaneContent(){
          VBox vbox = new VBox();
          contentLayout.getChildren().clear();
          contentLayout.getChildren().add(vbox);
          StackPane.setAlignment(vbox,Pos.CENTER);
          Button btn = new Button("Button1");     
          Button btn2= new Button("Button2");     
          vbox.getChildren().add(btn);
          vbox.getChildren().add(btn2);
          TilePane tilePane = new TilePane();
          tilePane.setMaxSize(100,100);
          Label lbl = new Label("Label on TilePane");
          tilePane.getChildren().add(lbl);
          vbox.getChildren().add(tilePane);
     public void start(Stage stage) {
          stage.setResizable(false);
          stage.centerOnScreen();
          Group root = new Group();
          Scene scene = new Scene(root,800,600);     
          stage.setScene(scene);
          //root  Layout =  StackPane
          StackPane rootLayout = new StackPane();
          root.getChildren().add(rootLayout);
          rootLayout.setMinSize(800,600);
          rootLayout.setMaxSize(800,600);
          //content  StackPane
          rootLayout.getChildren().add(contentLayout);
          contentLayout.setMinSize(100, 100);
          contentLayout.setMaxSize(200, 200);
          StackPane.setAlignment(contentLayout,Pos.CENTER);
          //control  VBox
          VBox controlBox = new VBox();
          rootLayout.getChildren().add(controlBox);     
          controlBox.setMaxSize(100, 200);
          StackPane.setAlignment(controlBox,Pos.CENTER_LEFT);
          //3 control  button
          Button btn1 = new Button("Add button");     
          Button btn2= new Button("Add Listview");
          Button btn3= new Button("Add TilePane");
          controlBox.getChildren().add(btn1);
          controlBox.getChildren().add(btn2);
          controlBox.getChildren().add(btn3);
          btn1.setOnMousePressed(new EventHandler<MouseEvent>() {
               @Override
               public void handle(MouseEvent arg0) {
                    addContent();     
          btn2.setOnMousePressed(new EventHandler<MouseEvent>() {
               @Override
               public void handle(MouseEvent arg0) {
                    addListViewContent();     
          btn3.setOnMousePressed(new EventHandler<MouseEvent>() {
               @Override
               public void handle(MouseEvent arg0) {
                    addTilePaneContent();     
          stage.show();
     public static void main(String[] args) {
          Application.launch(args);
}Edited by: noregister on Oct 4, 2011 11:30 AM
Edited by: noregister on Oct 4, 2011 11:31 AM

Answer 1

Oh, my bad. I'm actually using a JToggleButton and not a JButton, so the getRootPane().setDefaultButton() doesn't apply because it only takes JButton as an input param. I wonder why it wasn't implemented to take AbstractButton. hmmm.