We Keep Coding

Label not displaying text even after change (JavaFX)

I'm working on a project and I need to display the information of a Medicine object from a ListView to another Scene.
The user would select a Medicine from the ListView and press the Button to see it's details in the next Scene that would be displayed by Labels. The problem now is, I have transferred the info, and the text property of the Label has changed (observed through println and debugging), but the Label just won't display the changed text.
this is the main
package app;
import app.data.MedicineData;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.fxml.FXMLLoader;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.input.MouseEvent;
import javafx.stage.Stage;
import org.w3c.dom.events.Event;
import java.io.IOException;
public class Pharmachine extends Application {
public static final double WIDTH = 480;
public static final double HEIGHT = 720;
#Override
public void start(Stage stage) throws Exception{
Parent homePage = FXMLLoader.load(getClass().getResource("homepage.fxml"));
Scene homePageScene = newDefaultScene(homePage);
stage.setResizable(false);
stage.setScene(homePageScene);
stage.setTitle("Pharmachine");
stage.show();
}
#Override
public void init(){
MedicineData.getInstance().loadData();
}
public static Scene newDefaultScene(Parent parent){
Scene scene = new Scene(parent, WIDTH, HEIGHT);
scene.addEventHandler(MouseEvent.MOUSE_CLICKED,
(mouseEvent) -> {
Node targetNode = scene.getFocusOwner();
if(targetNode != null && targetNode.isFocused()) {
if(targetNode.getParent() != null)
targetNode.getParent().requestFocus();
mouseEvent.consume();
}
}
);
return scene;
}
public static void navigateTo(ActionEvent actionEvent, String filename){
Stage mainWindow = (Stage) ((Node) actionEvent.getSource()).getScene().getWindow();
Scene currentScene = ((Node) actionEvent.getSource()).getScene();
try {
currentScene.setRoot(FXMLLoader.load(Pharmachine.class.getResource(filename)));
mainWindow.setScene(currentScene);
} catch(IOException e){
e.printStackTrace();
}
}
public static void main(String[] args){ launch(args); }
}
this is the fxml for the list's page
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.ListView?>
<BorderPane xmlns="http://javafx.com/javafx" xmlns:fx="http://javafx.com/fxml"
fx:controller="app.ListpageController" fx:id="pageRoot"
stylesheets="#styles/main.css">
<left>
<GridPane fx:id="listArea" alignment="CENTER">
<ListView fx:id="medicineList"
GridPane.rowIndex="1"/>
</GridPane>
</left>
<center>
<GridPane fx:id="buttonsArea" alignment="CENTER"
hgap="10" vgap="10">
<Button text="Back"
onAction="#displayHomePage"
GridPane.halignment="CENTER"/>
<Button text="Details"
onAction="#displayDetailsPage"
GridPane.rowIndex="1"
GridPane.halignment="CENTER"/>
</GridPane>
</center>
</BorderPane>
here is the controller for the list's page
package app;
import app.data.Medicine;
import app.data.MedicineData;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.control.Label;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Priority;
import javafx.util.Callback;
import java.io.IOException;
public class ListpageController {
#FXML
private BorderPane pageRoot;
#FXML
private GridPane listArea;
#FXML
private GridPane buttonsArea;
#FXML
private ListView<Medicine> medicineList;
#FXML public void initialize(){
listArea.setMaxWidth(Pharmachine.WIDTH * 3/5);
medicineList.setMinWidth(listArea.getMaxWidth());
medicineList.setMinHeight(Pharmachine.HEIGHT);
medicineList.setItems(MedicineData.getInstance().getMedicines());
medicineList.setCellFactory(new Callback<>() {
#Override
public ListCell<Medicine> call(ListView<Medicine> medicineListView) {
ListCell<Medicine> listCell = new ListCell<>(){
#Override
public void updateItem(Medicine medicine, boolean empty){
super.updateItem(medicine, empty);
if(!empty){
HBox medName = new HBox(new Label(medicine.getName()));
HBox.setHgrow(medName, Priority.ALWAYS);
HBox medPrice = new HBox(new Label(String.format("RM%.2f", medicine.getPrice())));
HBox medLabel = new HBox(medName, medPrice);
setGraphic(medLabel);
}
}
};
listCell.setOnMouseClicked(
(mouseEvent) -> {
if(mouseEvent.getClickCount() == 2){
medicineList.getSelectionModel().clearSelection();
}
}
);
return listCell;
}
});
}
#FXML private void displayHomePage(ActionEvent actionEvent){
Pharmachine.navigateTo(actionEvent, "homepage.fxml");
}
#FXML private void displayDetailsPage(ActionEvent actionEvent){
FXMLLoader loader = new FXMLLoader();
loader.setLocation(getClass().getResource("detailspage.fxml"));
try {
loader.load();
} catch(IOException e){
e.printStackTrace();
}
DetailspageController controller = loader.getController();
Medicine selectedMedicine = medicineList.getSelectionModel().getSelectedItem();
if(selectedMedicine != null) {
controller.setInfo(selectedMedicine);
Pharmachine.navigateTo(actionEvent, "detailspage.fxml");
}
}
}
this is the fxml for the next scene (just simple for now)
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.layout.BorderPane?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.text.Text?>
<BorderPane xmlns="http://javafx.com/javafx" xmlns:fx="http://javafx.com/fxml"
fx:id="pageRoot" fx:controller="app.DetailspageController"
stylesheets="#styles/main.css">
<center>
<GridPane fx:id="detailsArea"
alignment="CENTER" hgap="10" vgap="10">
<Label text="Details"/>
<Text text="Name: "
GridPane.rowIndex="1"/>
<Label fx:id="medNameLabel" text="~"
GridPane.rowIndex="1" GridPane.columnIndex="1"/>
<Text text="Price: "
GridPane.rowIndex="2"/>
<Label fx:id="medPriceLabel" text="~"
GridPane.rowIndex="2" GridPane.columnIndex="1"/>
</GridPane>
</center>
</BorderPane>
and this is the scene's controller
package app;
import app.data.Medicine;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Label;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.GridPane;
import java.net.URL;
import java.util.ResourceBundle;
public class DetailspageController implements Initializable {
private Medicine selectedMedicine;
#FXML
private BorderPane pageRoot;
#FXML
private GridPane detailsArea;
#FXML
private Label medNameLabel;
#FXML
private Label medPriceLabel;
#Override
public void initialize(URL url, ResourceBundle rb){
}
public void setInfo(Medicine medicine){
selectedMedicine = medicine;
medNameLabel.setText(selectedMedicine.getName());
medPriceLabel.setText(String.format("RM%.2f", selectedMedicine.getPrice()));
System.out.println(medNameLabel.textProperty());
System.out.println(medNameLabel.getText());
medNameLabel.setStyle("-fx-background-color: red;");
}
}
The help would mean a lot. Thank you :]

In your displayDetailsPage method, you load a scene from detailspage.fxml, and you update its labels by calling the setInfo method of the controller.
Then, you call Pharmachine.navigateTo, which loads detailspage.xml again and replaces the scene root with the newly loaded root. You updated the text of the labels in the first details page, but the second details page is brand new, so it doesn’t have those changes.
The second argument in the navigateTo method should be of type Parent rather than a String. navigateTo should not attempt to load any .fxml file; let that be the caller’s responsibility.
Side note: When a list has multiple attributes for each data item, you should probably use a TableView rather than a ListView.

Consuming onCloseRequest event of tab disables the tab completely

I am writing an in-app web browser for a JavaFX application which as all browsers, has tabs. The structure of the whole app is based on a TabPane in which all of the functionality of the app is shown. When the user selects to use the browser, a new Tab (let's call it browserMainTab) is created, and it contains another TabPane for the browser tabs. I would like to show a confirmation dialog when the user selects to close the browserMainTab but the inner TabPane still has opened tabs. So far, evertyhing is ok, but when I consume the onCloseRequest event of browserMainTab the tab stays still active with all its' children but it can't be clicked, dragged, or closed.
private void mainBrowserTabCloseConfirmationEvent(Tab tab){
tab.setOnCloseRequest(event -> {
AnchorPane pane = (AnchorPane) tab.getContent();
TabPane browserSubTabPane = (TabPane) pane.getChildren().get(0);
if(browserSubTabPane.getTabs().size() >= 1){
StillOpenBrowserTabsAlert alert = new StillOpenBrowserTabsAlert();
alert.setNumOfOpenTabs(browserSubTabPane.getTabs().size());
Alert alert1 = alert.alertWithReturnType();
if(alert1.getResult() == ButtonType.OK){
getMainTabPane().getTabs().remove(getMainTabPane()
.getSelectionModel()
.getSelectedItem());
}else{
event.consume();
}
}
});
}
The above snippet throws no exceptions, and the first part works fine. The issue comes up after I consume() the event, when the tab becomes unclickable. Can somebody help please?
**EDIT**
Reproducible example as requested
ExampleMain.java:
package sample;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class ExampleMain extends Application {
#Override
public void start(Stage primaryStage) throws Exception {
FXMLLoader loader = new FXMLLoader(getClass().getResource("mainTabPane.fxml"));
Parent root = loader.load();
primaryStage.setScene(new Scene(root, 600, 400));
primaryStage.show();
}
}
MainTabPane.java
package sample;
import javafx.application.Platform;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Parent;
import javafx.scene.control.Alert;
import javafx.scene.control.ButtonType;
import javafx.scene.control.Tab;
import javafx.scene.control.TabPane;
import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
public class MainTabPane implements Initializable {
#FXML private TabPane mainTabPane;
private SubTabPane subTabPaneController;
private SubTabPane getSubTabPaneController() {
return subTabPaneController;
}
private void setSubTabPaneController(SubTabPane subTabPaneController) {
this.subTabPaneController = subTabPaneController;
}
private TabPane getMainTabPane() { return mainTabPane; }
private void loadSubTabPaneAsTabContent(){
FXMLLoader loader = new FXMLLoader(getClass().getResource("subTabPane.fxml"));
Parent root = null;
try{
root = loader.load();
}catch (IOException exception){
exception.printStackTrace();
}
assert root != null;
setSubTabPaneController(loader.getController());
Tab tab = new Tab("Tab of main TabPane");
tab.setContent(root);
getMainTabPane().getTabs().add(tab);
closeRequestOfMainTabPane(tab);
}
private void closeRequestOfMainTabPane(Tab tab){
tab.setOnCloseRequest(e -> {
int numOfOpenTabsInSubTabPane = getSubTabPaneController().getSubTabPane().getTabs().size();
if(numOfOpenTabsInSubTabPane >= 1){
Alert alert = new Alert(Alert.AlertType.CONFIRMATION);
alert.showAndWait();
if(alert.getResult() == ButtonType.OK){
getMainTabPane().getTabs().remove(getMainTabPane()
.getSelectionModel()
.getSelectedItem());
}else{
e.consume();
}
}
});
}
#Override
public void initialize(URL location, ResourceBundle resources) {
Platform.runLater(this::loadSubTabPaneAsTabContent);
getMainTabPane().setTabDragPolicy(TabPane.TabDragPolicy.REORDER);
}
}
SubTabPane.java
package sample;
import javafx.fxml.FXML;
import javafx.scene.control.TabPane;
public class SubTabPane {
#FXML private TabPane subTabPane;
TabPane getSubTabPane() { return subTabPane; }
}
mainTabPane.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.TabPane?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.MainTabPane">
<children>
<TabPane fx:id="mainTabPane" prefHeight="400.0" prefWidth="600.0" tabClosingPolicy="UNAVAILABLE" />
</children>
</AnchorPane>
subTabPane.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Tab?>
<?import javafx.scene.control.TabPane?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.SubTabPane">
<children>
<TabPane fx:id="subTabPane" layoutX="7.0" prefHeight="400.0" prefWidth="593.0">
<tabs>
<Tab text="Untitled Tab 1">
<content>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0" />
</content>
</Tab>
</tabs>
</TabPane>
</children>
</AnchorPane>

I tried something similar in an application with tabs coresponding to opened projects. The problem apears when the TabDragPolicy is set to REORDER, I smash a tab closing button, a confirmirmation dialog apears asking me if I'd like to save the project, and the event gets consumed if I cancel tab closing. If you remove any of these three (the drag policy, the dialog or event consuming), the tab does not freeze. Removing tab and adding it back to the same position helps, but looks ugly.
The following approach works perfectly for some reason:
tab.setOnCloseRequest(e -> {
tab.getTabPane().setTabDragPolicy(TabPane.TabDragPolicy.FIXED);
// your confirmation code
Platform.runLater(() -> tab.getTabPane().setTabDragPolicy(TabPane.TabDragPolicy.REORDER));
});

Why do you have code to manually remove the tab?
This works for me:
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.event.Event;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.ButtonType;
import javafx.scene.control.CheckBox;
import javafx.scene.control.Tab;
import javafx.scene.control.TabPane;
import javafx.stage.Stage;
public class Main extends Application {
public static void main(String[] args) {
launch(args);
}
#Override
public void start(Stage stage) throws Exception {
CheckBox askFirst = new CheckBox("confirm before allowing close");
Tab tab = new Tab("Close Me", askFirst);
tab.setOnCloseRequest((Event t) -> {
if (askFirst.isSelected()) {
Alert areYouSureAlert = new Alert(Alert.AlertType.CONFIRMATION, "Are you sure?", ButtonType.YES, ButtonType.NO);
Optional<ButtonType> result = areYouSureAlert.showAndWait();
if (result.isEmpty() || result.get() != ButtonType.YES) {
t.consume();
}
}
});
TabPane tp = new TabPane(tab);
stage.setScene(new Scene(tp));
stage.show();
Platform.setImplicitExit(true);
}
}
Your problem is in this code:
if(alert.getResult() == ButtonType.OK){
getMainTabPane().getTabs().remove(getMainTabPane()
.getSelectionModel()
.getSelectedItem());
}else{
e.consume();
}
all you really need is:
if (alert.getResult() != ButtonType.OK) {
e.consume();
}
To remove the tab, let the event be pressed, to not close the tab, consume the event. You are likely confusing the TabPane which thinks it is supposed to be removing a tab that you have already tried to remove.

Well, I found the bug in the end. This was happening because I had a TabDragPolicy enabled during initialization. I never thought that this could cause such problem so this is why I didn't mention it. It seems that when I consume() the event, the TabDragPolicy is not applied anymore and this makes the Tab to completely freeze. Once I removed the TabDragPolicy.REORDER from initialize the issue stopped.

Apply DropShadow as separate layer on JavaFX canvas

I'm making a paint program but where there is a DropShadow around the drawings the user makes. When they erase, it also erases the DropShadow. If I try to reapply the DropShadow (to get it to surround the drawing's new boundaries), it works, but it makes the rest of the already applied DropShadow darker which I don't want.
The solutions I can think of are two-fold:
Remove DropShadow effect and reapply it on every erase. As far as I know this is not possible while using GraphicsContext.applyEffect()
Apply DropShadow on a separate canvas and clear it and redraw on every erase. The code below implements my embarrassing attempt at this solution.
Here is a picture of what happens currently:
Here is my code
FXMLDocument.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.canvas.Canvas?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.Pane?>
<AnchorPane id="AnchorPane" prefHeight="399.0" prefWidth="465.0" xmlns="http://javafx.com/javafx/8.0.60" xmlns:fx="http://javafx.com/fxml/1" fx:controller="cartographerfx.FXMLDocumentController">
<children>
<Pane fx:id="canvasPane" layoutX="26.0" layoutY="20.0" prefHeight="362.0" prefWidth="417.0" style="-fx-border-style: solid;">
<children>
<Canvas fx:id="canvas" height="362.0" onMouseDragged="#CanvasMouseDragged" onMousePressed="#CanvasMouseDown" onMouseReleased="#CanvasMouseUp" width="417.0" />
</children>
</Pane>
</children>
</AnchorPane>
FXMLDocumentController.java
package cartographerfx;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.effect.DropShadow;
import javafx.scene.input.MouseButton;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
/**
*
* #author Dan
*/
public class FXMLDocumentController implements Initializable {
#FXML
Canvas canvas;
Canvas shadowLayer;
#FXML
Pane canvasPane;
private GraphicsContext gc;
private GraphicsContext sgc;
private boolean isDragging;
private double lastX;
private double lastY;
#FXML
public void CanvasMouseDragged(MouseEvent event) {
if (isDragging) {
if (event.getButton() == MouseButton.PRIMARY) {
gc.setStroke(Color.BLUE);
gc.setLineWidth(10);
gc.strokeLine(lastX, lastY, event.getX(), event.getY());
} else if (event.getButton() == MouseButton.SECONDARY) {
gc.clearRect(event.getX(), event.getY(), 10, 10);
}
lastX = event.getX();
lastY = event.getY();
}
}
#FXML
public void CanvasMouseDown(MouseEvent event) {
isDragging = true;
lastX = event.getX();
lastY = event.getY();
if (event.getButton() == MouseButton.MIDDLE)
{
sgc = gc;
sgc.applyEffect(new DropShadow());
}
}
#FXML
public void CanvasMouseUp(MouseEvent event) {
isDragging = false;
}
#Override
public void initialize(URL url, ResourceBundle rb) {
gc = canvas.getGraphicsContext2D();
isDragging = false;
shadowLayer = new Canvas(canvas.getWidth(), canvas.getHeight());
sgc = shadowLayer.getGraphicsContext2D();
canvasPane.getChildren().add(shadowLayer);
shadowLayer.toBack();
}
}
CartographerFX.java
package cartographerfx;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
/**
*
* #author Dan
*/
public class CartographerFX extends Application {
#Override
public void start(Stage stage) throws Exception {
Parent root = FXMLLoader.load(getClass().getResource("FXMLDocument.fxml"));
Scene scene = new Scene(root);
stage.setScene(scene);
stage.show();
}
/**
* #param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}

I don't understand why everybody seems to be using the Canvas when the scene-graph would be much better suited for the task. Why don't you just use an ordinary Pane and a Path. You can then apply the drop shadow effect directly to the path. The advantage of the scene-graph is that you can edit every element individually as often as you want whereas the canvas basically is conceptually just an image which you cannot edit at all once it is drawn.

How can I add 3D surface to the AnchorPane

How Can I add 3D surface to the view.fxml, there is not "thing" on the Scene Builder panel like surface.
My scene builder hierarchy looks like :
And ss of app - like we can see got something on the left top corner, the surface should be on the middle.
I would like to add first just some samples of 3D surface :
My controller code :
package sample.packet3D;
import org.fxyz.cameras.CameraTransformer;
import javafx.beans.InvalidationListener;
import javafx.beans.Observable;
import javafx.fxml.FXML;
import javafx.scene.Group;
import javafx.scene.PerspectiveCamera;
import javafx.scene.PointLight;
import javafx.scene.layout.AnchorPane;
public class Window3DController {
#FXML
private AnchorPane anchorPane;
#FXML
private Group group;
private Window3DBuilder window3dBuilder;
private PerspectiveCamera perspectiveCamera;
#FXML
public void initialize() {
perspectiveCamera = new PerspectiveCamera(true);
window3dBuilder = new Window3DBuilder( group, perspectiveCamera );
window3dBuilder.createScene();
group.sceneProperty().addListener(new InvalidationListener() {
#Override
public void invalidated(Observable observable) {
group.getScene().setCamera(perspectiveCamera);
group.sceneProperty().removeListener(this);
}
});
}
}
Logic class :
package sample.packet3D;
import org.fxyz.cameras.CameraTransformer;
import org.fxyz.shapes.primitives.SurfacePlotMesh;
import javafx.geometry.Point3D;
import javafx.scene.Group;
import javafx.scene.PerspectiveCamera;
import javafx.scene.PointLight;
import javafx.scene.SceneAntialiasing;
import javafx.scene.SubScene;
import javafx.scene.layout.AnchorPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.CullFace;
import javafx.scene.shape.TriangleMesh;
import javafx.scene.transform.Rotate;
public class Window3DBuilder {
private Group group;
private SurfacePlotMesh surface;
private PerspectiveCamera perspectiveCamera;
private CameraTransformer cameraTransformer;
private PointLight light;
public Window3DBuilder( Group group, PerspectiveCamera perspectiveCamera ) {
this.group = group;
this.perspectiveCamera = perspectiveCamera;
cameraTransformer = new CameraTransformer();
}
public void createScene() {
createSurface();
createLight();
group.getChildren().addAll(surface);
cameraTransformer.setTranslate(0, 0, 0);
cameraTransformer.getChildren().addAll(perspectiveCamera);
perspectiveCamera.setNearClip(0.1);
perspectiveCamera.setFarClip(100000.0);
perspectiveCamera.setTranslateX((group.getBoundsInLocal().getMaxX() + group.getBoundsInLocal().getMinX()) / 2d);
perspectiveCamera.setTranslateY((group.getBoundsInLocal().getMaxY() + group.getBoundsInLocal().getMinY()) / 2d);
double max = Math.max(group.getBoundsInLocal().getWidth(), group.getBoundsInLocal().getHeight());
perspectiveCamera.setTranslateZ(-2 * max);
}
public void createLight() {
light = new PointLight(Color.WHITE);
cameraTransformer.getChildren().add(light);
light.setTranslateX(perspectiveCamera.getTranslateX());
light.setTranslateY(perspectiveCamera.getTranslateY());
light.setTranslateZ(perspectiveCamera.getTranslateZ());
}
private void createSurface() {
surface = new SurfacePlotMesh(
p-> Math.sin(p.magnitude() + 1e-10) / (p.magnitude() + 1e-10),
20, 20, 100, 100, 4);
surface.setCullFace(CullFace.NONE);
surface.setTextureModeVertices3D(1530, p -> p.magnitude());
surface.getTransforms().addAll(new Rotate(200, Rotate.X_AXIS), new Rotate(-20, Rotate.Y_AXIS));
}
}
And view :
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.effect.*?>
<?import javafx.scene.canvas.*?>
<?import javafx.scene.*?>
<?import javafx.scene.shape.*?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.packet3D.Window3DController">
<children>
<Group fx:id="group">
<effect>
<Lighting>
<bumpInput>
<Shadow />
</bumpInput>
<light>
<Light.Distant />
</light>
</Lighting>
</effect>
</Group>
<PerspectiveCamera fx:id="perspectiveCamera" visible="false" />
</children>
</AnchorPane>
What Am I doing wrong ? Could someone help me ?
Also this is one of the window, to which I am entering by pressing the button.
#FXML
public void moveTo3DScene(ActionEvent event) throws IOException {
Stage stage3D = (Stage) ((Node) event.getSource()).getScene().getWindow();
Parent parent3D = FXMLLoader.load(getClass().getResource("packet3D/Window3DSceneView.fxml"));
stage3D.setTitle("Animation 3D");
stage3D.setScene(new Scene(parent3D, 1200, 800));
stage3D.show();
}

You have a problem with PerspectiveCamera. It has a boolean parameter called fixedEyeAtCameraZero that by default is false, and a very small surface is shown at the top left corner of your scene.
We need to set it to true, so:
If fixedEyeAtCameraZero is true, the eye position is fixed at (0, 0, 0) in the local coordinates of the camera
But unfortunately you can't set the parameter, there is no setFixedEyeAtCameraZero() method. The only way to change it is with the camera constructor.
This means that you have to remove the PerspectiveCamera from the FXML file, and add it by code on the controller
public class Window3DController {
#FXML
private AnchorPane anchorPane;
#FXML
private Group group;
private Window3DBuilder window3dBuilder;
private PerspectiveCamera perspectiveCamera;
#FXML
public void initialize() {
perspectiveCamera = new PerspectiveCamera(true);
window3dBuilder = new Window3DBuilder(group, perspectiveCamera);
window3dBuilder.createScene();
group.sceneProperty().addListener(new InvalidationListener() {
#Override
public void invalidated(Observable observable) {
group.getScene().setCamera(perspectiveCamera);
group.sceneProperty().removeListener(this);
}
});
}
}
One last step: you need to set some parameters to the camera, basically its z coordinate based on the size of the mesh:
public void createScene() {
createSurface();
group.getChildren().addAll(surface);
perspectiveCamera.setNearClip(0.1);
perspectiveCamera.setFarClip(100000.0);
perspectiveCamera.setTranslateX((group.getBoundsInLocal().getMaxX() + group.getBoundsInLocal().getMinX()) / 2d);
perspectiveCamera.setTranslateY((group.getBoundsInLocal().getMaxY() + group.getBoundsInLocal().getMinY()) / 2d);
double max = Math.max(group.getBoundsInLocal().getWidth(), group.getBoundsInLocal().getHeight());
perspectiveCamera.setTranslateZ(-2 * max);
}
This will show your surface, but not as you will expect: the effects you are applying are intended for 2D:
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.Group?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8.0.65" xmlns:fx="http://javafx.com/fxml/1" fx:controller="Window3DController">
<children>
<Group fx:id="group" />
</children>
</AnchorPane>
Remove those effects, and add them by code using PointLight:
public class Window3DBuilder {
private final Group group;
private SurfacePlotMesh surface;
private final CameraTransformer cameraTransformer;
private final PerspectiveCamera perspectiveCamera;
private PointLight light;
public Window3DBuilder( Group group, PerspectiveCamera perspectiveCamera ) {
this.group = group;
this.perspectiveCamera = perspectiveCamera;
cameraTransformer = new CameraTransformer();
}
public void createScene() {
createSurface();
group.getChildren().addAll(surface, cameraTransformer);
cameraTransformer.setTranslate(0, 0, 0);
cameraTransformer.getChildren().addAll(perspectiveCamera);
perspectiveCamera.setNearClip(0.1);
perspectiveCamera.setFarClip(100000.0);
perspectiveCamera.setTranslateX((group.getBoundsInLocal().getMaxX() + group.getBoundsInLocal().getMinX()) / 2d);
perspectiveCamera.setTranslateY((group.getBoundsInLocal().getMaxY() + group.getBoundsInLocal().getMinY()) / 2d);
double max = Math.max(group.getBoundsInLocal().getWidth(), group.getBoundsInLocal().getHeight());
perspectiveCamera.setTranslateZ(-2 * max);
createLight();
}
public void createLight() {
light = new PointLight(Color.WHITE);
cameraTransformer.getChildren().add(light);
light.setTranslateX(perspectiveCamera.getTranslateX());
light.setTranslateY(perspectiveCamera.getTranslateY());
light.setTranslateZ(perspectiveCamera.getTranslateZ() / 10);
}
private void createSurface() {
surface = new SurfacePlotMesh(
p-> Math.sin(p.magnitude() + 1e-10) / (p.magnitude() + 1e-10),
20, 20, 100, 100, 4);
surface.setCullFace(CullFace.NONE);
surface.setTextureModeVertices3D(1530, p -> p.magnitude());
surface.getTransforms().addAll(new Rotate(200, Rotate.X_AXIS), new Rotate(-20, Rotate.Y_AXIS));
}
}

I wanted to keep the camera in the .fxml file. I created a custom control based on PerspectiveCamera.
Start with a very simple class...
import javafx.scene.PerspectiveCamera;
public class PerspectiveCamera3D extends PerspectiveCamera {
// force 3D
public PerspectiveCamera3D() {
super(true);
}
// toss the parameter, force 3D
public PerspectiveCamera3D(final boolean fixedEyeAtCameraZero) {
this();
}
}
Export to a .jar file.
Launch Scene Builder and open the .fxml file for where you want the camera to be.
Open the 'gear' menu on the Library header.
Then Import FXML/Jar. Import your newly created .jar file. A dialog will pop up with your control listed. Once confirmed, the control will appear in the custom menu. Your control is now ready for use, just like any other one.
The 'Fixed Eye...' check box will still be read-only, but it will be checked. All of the other properties can be set as desired. To set the fx:id just add the following into your controller code...
#FXML
public PerspectiveCamera3D cambot;
Here is a bit more detailed of an example ... https://rterp.wordpress.com/2014/07/28/adding-custom-javafx-component-to-scene-builder-2-0-part-2/
The only problem I've had doing it this way, is when launching Scene Builder by clicking on the .fxml file in Eclipse causes an exception (I believe it is a local problem on my computer due to the way I'm launching things and their working directories). It works fine if I open Scene Builder, and then open the .fxml file from the Scene Builder File menu.

JavaFX 2.2 JFXPanel in Swing application showing Swing modal dialogs

I have a well established Swing application that I'm partially upgrading to JavaFX using JFXPanel. The JFrame with the JFXPanel gets a scene from another class which creates a root node in code (not FXML) that is an HBox with a pretty simple left-hand sidebar with dynamically generated links and buttons and stuff and a right-hand side that is dynamically filled in with content based on the button a user presses on the left side. The right-side content is built with several sets of FXML and controller classes.
Within each of these right-side content classes, I have to bring up some standard Swing JDialogs or JOptionPane's that accept a parent (JFrame or JDialog) in the constructor for screen placement and modality. (These JDialogs and JOptionPanes come from a library of common components that we have written over the years)
Is there a way at runtime for me to get a reference to the JFrame containing the JFXPanel so I can instantiate them with proper modality?
** EDIT **
Modality actually works
What I really want to do now is center the dialog over the parent. Of course, I'm sure that this will be useful for a myriad of other reasons for me in the future.
Here is an abbreviated version. I have been able to run it, so it should work for you.
I apologize if this is a bit messy :-S
Thanks a ton for your assistance!
This is the main class:
import java.awt.*;
import java.io.IOException;
import javafx.application.Platform;
import javafx.embed.swing.JFXPanel;
import javafx.scene.Scene;
import javafx.fxml.FXML;
import javax.swing.*;
public class SwingMain extends JFrame {
public static final String TITLE = "Main JFrame";
private GridBagLayout gridBagLayout1 = new GridBagLayout();
private JPanel jPanel = new JPanel();
private JFXPanel jfxPanel = new JFXPanel();
private JFXSceneMaker sceneMaker = new JFXSceneMaker(this);
public SwingMain() {
super();
try {
init();
} catch (Exception ex) {
ex.printStackTrace();
}
}
public static void main(String[] args) {
final SwingMain swingMainTest = new SwingMain();
swingMainTest.setVisible(true);
}
void init() throws Exception {
Dimension minimumSize = new Dimension(1280, 864);
this.setMinimumSize(minimumSize);
this.setPreferredSize(minimumSize);
jPanel.setLayout(gridBagLayout1);
this.setTitle(TITLE);
Platform.setImplicitExit(false);
try {
prepareScene();
} catch (Exception ex) {
// log error
}
getContentPane().add(jPanel);
jPanel.add(jfxPanel, new GridBagConstraints(0, 1, 1, 1, 1.0, 1.0,
GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(
0, 0, 0, 0), 0, 0));
}
protected void prepareScene() {
Platform.runLater(new Runnable() {
#Override
public void run() {
try {
Scene scene = sceneMaker.getScene();
jfxPanel.setScene(scene);
} catch (IOException ioex) {
// log error
}
}
});
}
}
This is the class that provides the scene for the JFXPanel
import java.io.IOException;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import javafx.animation.*;
import javafx.application.Platform;
import javafx.collections.ListChangeListener;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXMLLoader;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.SceneBuilder;
import javafx.scene.control.Hyperlink;
import javafx.scene.control.Label;
import javafx.scene.control.Toggle;
import javafx.scene.control.ToggleButton;
import javafx.scene.control.ToggleGroup;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.layout.Priority;
import javafx.scene.layout.Region;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.scene.text.Text;
import javafx.scene.text.TextAlignment;
import javafx.util.Duration;
public class JFXSceneMaker {
private static final Interpolator interpolator = Interpolator.SPLINE(0.4829, 0.5709, 0.6803, 0.9928);
// To obtain a scalable page layout, you define all positions and sizes in terms of “root em” (rem),
// the em size of the default font
private final double rem = Math.rint(new Text("").getLayoutBounds().getHeight());
private double SIDEBAR_WIDTH = rem * 13;
private Pane root;
private StackPane currentPane, sparePane;
private VBox sideBar;
private int currentPaneIndex = 0;
private Timeline timeline;
private ContentPane nextPane = null;
private int nextPaneIndex;
private JFrame swingParent;
public static final String TITLE = "JavaFX Rocks!";
private ContentPane[] panes;
public JFXSceneMaker(JFrame frame) {
// This is a reference to the Swing parent JFrame that I want to place the JOptionPanes and JDialogs over
this.swingParent = frame;
}
public Scene getScene() throws IOException {
Parent pane1 = FXMLLoader.load(Pane1Controller.class.getResource("pane1contentPane.fxml"));
Parent pane2 = FXMLLoader.load(Pane2Controller.class.getResource("pane2contentPane.fxml"));
Parent pane3 = FXMLLoader.load(Pane3Controller.class.getResource("pane3contentPane.fxml"));
panes = new ContentPane[]{
new ContentPane("Panel1", pane1),
new ContentPane("Panel2", pane2),
new ContentPane("Panel3", pane3)
};
// create the left-hand side bar
sideBar = new VBox(0);
sideBar.setId("SideBar");
sideBar.setPrefWidth(SIDEBAR_WIDTH);
sideBar.setMinWidth(SIDEBAR_WIDTH);
sideBar.setMaxWidth(SIDEBAR_WIDTH);
sideBar.setStyle("-fx-background-color: #25282c");
HBox.setHgrow(sideBar, Priority.NEVER);
PersistentButtonToggleGroup toggleGroup = new PersistentButtonToggleGroup();
for (int i=0; i < panes.length; i++) {
final int index = i;
final ContentPane contentPane = panes[i];
final ToggleButton button = new ToggleButton(contentPane.getName());
if (i==0) {
Platform.runLater(new Runnable() {
#Override public void run() {
button.setSelected(true);
button.requestFocus();
}
});
}
button.setMaxWidth(Double.MAX_VALUE);
button.setAlignment(Pos.CENTER_LEFT);
button.setTextAlignment(TextAlignment.LEFT);
button.setToggleGroup(toggleGroup);
button.setOnAction(new EventHandler<ActionEvent>() {
#Override public void handle(ActionEvent t) {
switchcontentPane(contentPane, index);
}
});
sideBar.getChildren().add(button);
}
// current Pane and sparePane are used for switching between panes
currentPane = new StackPane();
currentPane.getChildren().setAll(panes[0].getContent());
sparePane = new StackPane();
sparePane.setVisible(false);
// contentPanePane is the right side of the scene where the relevant content is displayed
StackPane contentPanePane = new StackPane();
HBox.setHgrow(contentPanePane, Priority.ALWAYS);
contentPanePane.getChildren().addAll(currentPane, sparePane);
AnchorPane.setTopAnchor(currentPane, 0.0);
AnchorPane.setRightAnchor(currentPane, 0.0);
AnchorPane.setBottomAnchor(currentPane, 0.0);
AnchorPane.setLeftAnchor(currentPane, 0.0);
//create root node
root = new HBox();
root.setMinSize(Region.USE_PREF_SIZE, Region.USE_PREF_SIZE);
root.setPrefSize(1250, 844);
root.getChildren().addAll(sideBar,contentPanePane);
return SceneBuilder.create()
.root(root)
.build();
}
public void switchcontentPane(ContentPane newcontentPane, final int contentPaneIndex) {
// check if existing animation running
if (timeline != null) {
nextPane = newcontentPane;
nextPaneIndex = contentPaneIndex;
timeline.setRate(4);
return;
} else {
nextPane = null;
nextPaneIndex = -1;
}
// load new content
sparePane.getChildren().setAll(newcontentPane.getContent());
sparePane.setCache(true);
currentPane.setCache(true);
// wait one pulse then animate
Platform.runLater(new Runnable() {
#Override public void run() {
// animate switch
if (contentPaneIndex > currentPaneIndex) { // animate from bottom
currentPaneIndex = contentPaneIndex;
sparePane.setTranslateY(root.getHeight());
sparePane.setVisible(true);
timeline = TimelineBuilder.create().keyFrames(
new KeyFrame(Duration.millis(0),
new KeyValue(currentPane.translateYProperty(),0,interpolator),
new KeyValue(sparePane.translateYProperty(),root.getHeight(),interpolator)
),
new KeyFrame(Duration.millis(800),
animationEndEventHandler,
new KeyValue(currentPane.translateYProperty(),-root.getHeight(),interpolator),
new KeyValue(sparePane.translateYProperty(),0,interpolator)
)
)
.build();
timeline.play();
} else { // from top
currentPaneIndex = contentPaneIndex;
sparePane.setTranslateY(-root.getHeight());
sparePane.setVisible(true);
timeline = TimelineBuilder.create()
.keyFrames(
new KeyFrame(Duration.millis(0),
new KeyValue(currentPane.translateYProperty(),0,interpolator),
new KeyValue(sparePane.translateYProperty(),-root.getHeight(),interpolator)
),
new KeyFrame(Duration.millis(800),
animationEndEventHandler,
new KeyValue(currentPane.translateYProperty(),root.getHeight(),interpolator),
new KeyValue(sparePane.translateYProperty(),0,interpolator)
)
)
.build();
timeline.play();
}
}
});
}
private EventHandler<ActionEvent> animationEndEventHandler = new EventHandler<ActionEvent>() {
#Override public void handle(ActionEvent t) {
// switch panes
StackPane temp = currentPane;
currentPane = sparePane;
sparePane = temp;
// cleanup
timeline = null;
currentPane.setTranslateY(0);
sparePane.setCache(false);
currentPane.setCache(false);
sparePane.setVisible(false);
sparePane.getChildren().clear();
// start any animations
// check if we have a animation waiting
if (nextPane != null) {
switchcontentPane(nextPane, nextPaneIndex);
}
}
};
public static class PersistentButtonToggleGroup extends ToggleGroup {
PersistentButtonToggleGroup() {
super();
getToggles().addListener(new ListChangeListener<Toggle>() {
#Override
public void onChanged(Change<? extends Toggle> c) {
while (c.next())
for (final Toggle addedToggle : c.getAddedSubList())
((ToggleButton) addedToggle).addEventFilter(MouseEvent.MOUSE_RELEASED,
new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent mouseEvent) {
if (addedToggle.equals(getSelectedToggle()))
mouseEvent.consume();
}
});
}
});
}
}
}
This is the class that will contain the content for the right side panes
import javax.swing.JFrame;
import javafx.scene.Parent;
public class ContentPane {
private String name;
private Parent content;
protected JFrame swingParent;
public ContentPane(String name, Parent content) {
this.name = name;
this.content = content;
}
public String getName() {
return name;
}
public Parent getContent() {
return content;
}
}
This is the fxml for the first content pane
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane fx:id="content" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="Pane1Controller">
<children>
<VBox AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
<Label maxWidth="1.7976931348623157E308" minHeight="-Infinity" prefHeight="48.0" style="-fx-font-size: 24; -fx-text-fill: #e6e6e6; -fx-background-color: #0072bc; -fx-label-padding: 0 0 0 12;" text="Pane 1" VBox.vgrow="NEVER" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
</Label>
<AnchorPane xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
<StackPane prefHeight="25.0" prefWidth="125.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
<Button fx:id="optionButton1" mnemonicParsing="false" text="Show a JOptionPane" />
</children>
</StackPane>
</children>
</AnchorPane>
</children>
</VBox>
</children>
</AnchorPane>
This is the controller for the first pane
import java.net.URL;
import java.util.ResourceBundle;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javafx.event.ActionEvent;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.fxml.Initializable;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
public class Pane1Controller implements Initializable {
#FXML private Button optionButton1;
private JFrame swingParent;
#Override
public void initialize(URL arg0, ResourceBundle arg1) {
optionButton1.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent e) {
showJOptionPane();
}
});
}
private void showJOptionPane() {
JOptionPane.showMessageDialog(swingParent, "So...now what?");
}
}
Second pane fxml...
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane fx:id="content" prefHeight="73.0" prefWidth="161.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="Pane2Controller">
<children>
<VBox AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
<Label maxWidth="1.7976931348623157E308" minHeight="-Infinity" prefHeight="48.0" style="-fx-font-size: 24; -fx-text-fill: #e6e6e6; -fx-background-color: #0072bc; -fx-label-padding: 0 0 0 12;" text="Pane 2" VBox.vgrow="NEVER" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
</Label>
<AnchorPane xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
<StackPane prefHeight="25.0" prefWidth="125.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
<Button fx:id="optionButton2" mnemonicParsing="false" text="Show another JOptionPane" />
</children>
</StackPane>
</children>
</AnchorPane>
</children>
</VBox>
</children>
</AnchorPane>
Second pane controller...
import java.net.URL;
import java.util.ResourceBundle;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javafx.event.ActionEvent;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.fxml.Initializable;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
public class Pane2Controller implements Initializable {
#FXML private Button optionButton2;
private JFrame swingParent;
#Override
public void initialize(URL arg0, ResourceBundle arg1) {
optionButton2.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent e) {
showJOptionPane();
}
});
}
private void showJOptionPane() {
JOptionPane.showMessageDialog(swingParent, "Here we go again.");
}
}
Third pane fxml...
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane fx:id="content" prefHeight="73.0" prefWidth="161.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="Pane3Controller">
<children>
<VBox AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
<Label maxWidth="1.7976931348623157E308" minHeight="-Infinity" prefHeight="48.0" style="-fx-font-size: 24; -fx-text-fill: #e6e6e6; -fx-background-color: #0072bc; -fx-label-padding: 0 0 0 12;" text="Pane 3" VBox.vgrow="NEVER" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
</Label>
<AnchorPane xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
<StackPane prefHeight="25.0" prefWidth="125.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
<Button fx:id="optionButton3" mnemonicParsing="false" text="Show yet another JOptionPane" />
</children>
</StackPane>
</children>
</AnchorPane>
</children>
</VBox>
</children>
</AnchorPane>
3rd controller...
import java.net.URL;
import java.util.ResourceBundle;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javafx.event.ActionEvent;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.fxml.Initializable;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
public class Pane3Controller implements Initializable {
#FXML private Button optionButton3;
private JFrame swingParent;
#Override
public void initialize(URL arg0, ResourceBundle arg1) {
optionButton3.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent e) {
showJOptionPane();
}
});
}
private void showJOptionPane() {
JOptionPane.showMessageDialog(swingParent, "Here we go again.");
}
}

JFXPanel extends JComponent, therefore you should be able to get a runtime reference to the JFrame the same way you would using any Swing component. I'm assuming you're using something like getRootPane(...).
As an alternative to getting a runtime reference, you could always create your own class extending JFXPanel and pass in a reference to the JFrame in your custom constructor.
Edit
If you make your SwingMain class into a singleton, you should be able to easily get a references to any of it's fields. Here's a demo of how you could use it.
import java.awt.Color;
import javafx.application.Platform;
import javafx.embed.swing.JFXPanel;
import javafx.scene.*;
import javafx.scene.text.*;
import javax.swing.*;
public class SwingJFXCombo {
/**
* The control who starts everything.
* This should have the references you need.
* Uses the singleton pattern
*/
public static class MainController{
//Top level fields we may need access too
JFXPanel jfxPanel;
JPanel jp;
JFrame frame;
//Doing singleton stuff
private static MainController instance;
public static MainController getInstance(){
if(instance == null){
instance = new MainController();
}
return instance;
}
private MainController(){
jfxPanel = new JFXPanel();
jp = new JPanel();
jp.add(jfxPanel);
jp.setVisible(true);
jp.setBackground(Color.CYAN);
//Setup to display swing stuff
frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
frame.add(jp);
frame.pack();
}
public static void initialize(){
getInstance();
Platform.runLater(new Runnable() {
#Override
public void run() {
MainController mc = getInstance();
Scene scene = mc.initScene();
mc.jfxPanel.setScene(scene);
}
});
}
private Scene initScene(){
Group root = new Group();
Scene scene = new Scene(root, javafx.scene.paint.Color.ALICEBLUE);
Text text = new Text(40,100,"JavaFX Scene");
text.setFont(new Font(25));
root.getChildren().add(text);
return (scene);
}
}
/**
* Another random class for demonstration purposes
* This would be similar to your FX Controllers
*/
public static class RandomController{
public void printFrameColor(){
//Now from anywhere, I can get any of the top level items by calling the singleton
System.out.println(MainController.getInstance().frame.getBackground());
}
}
public static void main(String[] args){
MainController.initialize();
new RandomController().printFrameColor();
}
}