A stage in javafx requires exactly one scene, and a scene requires exactly one root node.
So I want to know what's the main role of the scene? It seems like a scene connects two sides that can be connected directly without an intermediate.
I want juste to understand the logic.
Thank you.
Stage represents a native system window. Scene is the content of this window with JavaFX controls, nodes, stylesheets, etc.
You can change Scenes inside a Stage during your UI workflow without a need to create a new system window each time.
i am working on a simple javafx banking app for practise. I have created a starting scene that basically has a progress bar.i have been lloking for way to change the scene to something like a login scene lets say, after the progress bar is full.
But since i have written the code to control the progress bar in the Controllers initialize method trying to access the stage gives me Nullpointer exception. any idea how i can acieve this using fxml
I am working on a JavaFX project and the problem that I am facing is that I can't connect the different pages for my application. I can't go from another FXML file to another FXML File. For example I have two FXML Files. One for the Login Screen and one for the Menu. What I want is that when I click on the login button of my Login screen that I immediately go to my Menu Screen.
One way to transition from one screen to another is to assign a new Scene to a Stage using the setScene method of Stage.
Another way is to assign a root node like BorderPane to the Scene and swap FXML using its set methods(setTop, setCenter etc.) as per your application needs (In your case, on logging in).
Actually I want to switch from one scene to another scene on particular event. So i can do that by setting scene of the stage without binding but i want to bind my stage with scene as soon as a flag changes my scene will change automatically....pls help
The JavaFX Demos and Samples Downloads contains an application called FXML-LoginDemo. It demonstrates how to change scenes in a stage. The important part happens in the method replaceSceneContent. As for automatically changing the stage when a flag in your application is updated, there are several ways to do that. I recommend using a PropertyChangeListener or using JavaFX withCDI and then using CDI events. I used the latter approach in my application and it works really well.
Display a swings JDialog containing a JRViewer for Jasper Report, from within a javafx application menu item click. BUT the JDialog is not MODAL even after setModal(true) as it is not owned by javafx stage. How to make a javafx stage the owner of a JDialog? Alternatively how to display a Jasper report inside a javafx stage, scene?
Don't use a JDialog. In JavaFX you use Stages. Put your Jasper report inside a Scene, put the Scene in a Stage. I think you can't put Swing components inside JavaFX components, so you must check this link: Integrating JavaFX into Swing Applications
Code to make a JavaFX dialog:
Stage stage = new Stage();
stage.setTitle("Title");
stage.setResizable(false);
stage.initModality(Modality.APPLICATION_MODAL);
stage.initOwner(primaryStage);
stage.initStyle(StageStyle.UTILITY);
(...)
Scene scene = new Scene(...);
stage.setScene(scene);
In the code above the Stage will behave exactly like a dialog.
Also check this:
How to create a JavaFX dialog?
Hello World, JavaFX Style
Back to the first (base) question: It's not possible to make a Stage the owner of a JDialog. But, after setting the content of the SwingNode
swingNode.setContent(xxx);
you can get the parent of xxx (may be the parent of the parent of xxx too...) until you find a (AWT-) Frame or (AWT-) Dialog. In the case of SwingNode it's a JLightweightFrame. This object you can use as the owner to create your JDialog.
But, I think there is a bug in the JavaFX SwingNode mechanism. The JDialog appears functionally modal, if you set it modal (setModal(true)), but it may appear behind the main (JavaFX) window. It's still possible to move the main window, to bring it in front and so on, what should not be possible if there is a modal dialog. But this is another topic.
To view a Jasper Report in javafx ( jdk 1.8> ) stage
JasperPrint jp = JasperFillManager.fillReport(reportsource, params,getCon());
SwingNode swingNode = new SwingNode();
swingNode.setContent(new JRViewer(jp));
AnchorPane anchorPane = new AnchorPane();
AnchorPane.setTopAnchor(swingNode,0.0);
AnchorPane.setBottomAnchor(swingNode,0.0);
AnchorPane.setLeftAnchor(swingNode,0.0);
AnchorPane.setRightAnchor(swingNode,0.0);
anchorPane.getChildren().add(swingNode);
Scene scene = new Scene(anchorPane);
Stage stage = new Stage();
stage.setHeight(550);
stage.setWidth(600);
stage.setAlwaysOnTop(true);
stage.setScene(scene);
stage.showAndWait();
Alternatively how to display a Jasper report inside a javafx stage, scene?
Output HTML from your Jasper report and load the report in a JavaFX WebView.
Make a javafx stage the owner of a JDialog?
I don't think this is possible. What should work instead is to make your application a Swing application and host your JavaFX content inside a JFXPanel inside a Swing JFrame. Then you have no Stage and the owner of the JDialog can be the JFrame hosting the JFXPanel.
now it's possible to do that
what you need now is install jdk 8
because swing content in javafx is introduced in jdk8
#FXML
private SwingNode swingNode;
...
JasperPrint jasperPrint = JasperFillManager.fillReport(FileName, hash, connect);
swingNode.setContent(new JRViewer(jasperPrint));
oracle just add tutorial for this too
for the next you can follow this link
oracle tutorial embed swing in javaFX
I have written a JasperReports print preview stage class in JavaFX 8. It is a pure JavaFX code and there is no need for use of SwingNode class.
In comparison to the JRViewer it does not support links and parts, but print preview window does not need it anyway. On the other side, code is much, much shorter and therefore it is easy to understand and to adopt further to everyone's needs.
Source code for this class is freely available at GitHub repository.