Develop Reference

Switch between scenes in fullscreen mode JavaFX [duplicate]

I have read several questions/solutions here that are related to my problems. but nothing seems to work.
so I have a primarystage in fullscreen mode, say if i click a button it changes the scene. but the stage seems to display the taskbar. also I resolved the issue by adding this to all of the scene methods..
stage.setFullScreen(false);
stage.setFullScreen(true);
BUT, the transition in scenes is not that fluid. first it goes to desktop and back to fullscreen.. which is not the ideal solution.
here is my code for the primary stage:
public static Stage stage;
private static AnchorPane mainLayout;
#Override
public void start(Stage primaryStage) throws IOException
{
Main.stage = primaryStage;
Main.stage.setTitle("Raven App");
stage.initStyle(StageStyle.UNDECORATED);
stage.setFullScreen(true);
stage.setFullScreenExitKeyCombination(KeyCombination.NO_MATCH);
Main.showMain();
}
here is my code for changing the scene:
public static void UserLogin() throws IOException
{
FXMLLoader loader=new FXMLLoader();
loader.setLocation(Main.class.getResource("page/UserHomeLogin.fxml"));
mainLayout=loader.load();
Scene scene=new Scene(mainLayout);
stage.setScene(scene);
stage.show();
}
I don't know if this is a bug or something. But i thought if you set your primary stage to full screen. and should be fullscreen all through out regardless of scene.
also, if i have a primary stage in full screen mode.. and a secondary stage NOT in full screen mode. the primary stage seems to disappear if i click a button to show the secondary stage. I wanted to show the secondary page on top of the primary stage, and the primary stage should not be clickable unless the secondary page is closed.
my code for showing the secondary stage:
public static void PasswordVerify() throws IOException
{
Stage stage = new Stage();
Parent root = FXMLLoader.load(Main.class.getResource("page/PassConfirm.fxml"));
stage.setScene(new Scene(root));
stage.setTitle("popup window");
stage.initModality(Modality.APPLICATION_MODAL);
stage.showAndWait();
stage.show();
}

Instead of creating a new scene, just change the root of the existing scene:
public static void UserLogin() throws IOException {
FXMLLoader loader=new FXMLLoader();
loader.setLocation(Main.class.getResource("page/UserHomeLogin.fxml"));
mainLayout=loader.load();
stage.getScene().setRoot(mainLayout);
// or just
// scene.setRoot(mainLayout);
// if you already have a reference to the scene
}
The second thing you are asking is not really possible. In JavaFX, on many platforms "full screen mode" is really implemented as "exclusive screen mode"; so there is a unique window visible. So you would need another solution entirely to this, that didn't involve displaying a new window at all.

Stage blink on load

I need to maximize Stage on load via code.
Here is my code:
public class Main extends Application {
#Override
public void start(Stage primaryStage) {
try {
Parent root = FXMLLoader.load(getClass().getResource("Main.fxml"));
Scene scene = new Scene(root);
scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
primaryStage.setScene(scene);
primaryStage.setTitle("Контрола трошкова кућног буџета");
primaryStage.setMaximized(true);
primaryStage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
I have all needed imports. Problem is when run it primaryStage blink for a part of second in size created in Scene Builder, then maximize as intended and I want it to show Maximized. It happend in Eclipse and when make runnable JAR and run it with *.bat file.
Is there anything I am doing wrong?
For testing I created small app in WPF it works properly, no blinking.
EDIT: When stage is in normal size and I click Maximize button, it maximizes stage as I want. Is there possibility to write code to simulate or call Maximize button on top of window? Othere way besides
stage.setMaximized(true);
because that line doesn't work well.

Here is a workaround, set the stage's opacity to 0 before showing it so the resizing happens while the stage is not visible, then change it back to 1:
primaryStage.setOpacity(0);
primaryStage.show();
primaryStage.setOpacity(1);

"Hello World" app in Java FX with minimal Java code

I selected Java FX between it and Swing because I want that view (*ML) and logic will be split (impossible in Swing).
Here is the "Hello world" template in IntelliJ IDEA:
public class Main extends Application {
#Override
public void start(Stage primaryStage) throws Exception{
Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));
primaryStage.setTitle("Hello World");
primaryStage.setScene(new Scene(root, 300, 275));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
Two meddlings to View in the Logic part:
Setting title - setTitle()
Setting top-level element size: primaryStage.setScene(new Scene(root, 300, 275));.
Can I set same settings in FXML?

The FXML loader will give you the root element, which already has a prefWidth and prefHeight.
You can't set the title but you can drop the size for the scene and it will be taken from the root element automatically.
Another thing that has to be set for the Stage explicitly are size constraints. You can have an initial size but the user can drag it around however he/she wants.

You can set size using the
prefHeight="yourHeightValue" prefWidth="yourWidthValue"
sets in your scene's root element. You can create scenes using SceneBuilder and it will generate related FXML for you.

Start the application window maximized in JavaFX FXML not working properly

I want my Javafx FXML application to start maximized so I used the method setMaximized(true) in my stage.
The program opens as Maximized no problem on that, but the problem is that there is a small black area that flashes for half a second on the application startup just before the window appears.
Here's a recording (gif) of what I describe:
I figured out that the problem is with the scene as it is trying to open in its prefWidth & prefHeight then it scales up to fit the stage.
How can I fix this and make the program start as normal programs do?
here's my start() method:
#Override
public void start(Stage primaryStage) throws Exception{
Parent root = FXMLLoader.load(getClass().getResource("editor.fxml"));
primaryStage.setTitle("Simple Text Editor");
primaryStage.setScene((new Scene(root)));
primaryStage.setMaximized(true);
primaryStage.show();
}

The only workaround I found is this:
#Override
public void start(Stage primaryStage) throws Exception{
Parent root = FXMLLoader.load(getClass().getResource("editor.fxml"));
primaryStage.setTitle("Simple Text Editor");
primaryStage.setScene(new Scene(root));
primaryStage.setMinWidth(450);
primaryStage.setMinHeight(300);
Screen screen = Screen.getPrimary();
Rectangle2D bounds = screen.getVisualBounds();
primaryStage.setWidth(bounds.getWidth());
primaryStage.setHeight(bounds.getHeight());
primaryStage.setMaximized(true);
primaryStage.show();
}

JavaFX - Adding a ScrollPane popup which closes when user clicks out of it

My title is badly worded because my problem is very hard to describe, so I drew an image for it:
I have an ImageView object which represents a pile of cards (not poker cards but just used them as an example). When this image view is clicked, I need a window to popup that features a ScrollPane and shows them all the card objects that are in the linked list. When the user clicks anywhere outside of the window (and later on, any right mouse button click) the scrollpane window needs to close.
Ways that I have already tried:
Scene with APPLICATION_MODAL. Then did Scene.showAndWait(). I didn't like this method because it made another application on the user's taskbar. It also felt clunky and just bad.
Changed my root pane to a StackPane, then added this Scrollpane to the stackpane when the user clicked on the deck. This for some reason was really slow and seemed really obtrusive. It was also annoying because my alternate class needed to have access to the root pane (since when it closes, it needs to go to the root StackPane and call .remove() on itself).
Are there any other better ways to accomplish this? My application is going to have many of these piles and so this framework needs to work very well.

I would still propose to open a new Stage with some restrictions to solve your issues with this approach.
You can use the initOwner property of the Stage to have another Stage as owner, therefore no other icon will appear on the taskbar.
You can use the initStyle property with TRANSPARENT or UNDECORATED StageStlye, this will ensure that only the content is visible.
And in the end you can use the focusedProperty to check whether the Stage lost focus to close it.
Example
public class Main extends Application {
#Override
public void start(Stage primaryStage) {
try {
BorderPane root = new BorderPane();
Scene scene = new Scene(root,400,400);
Button b = new Button("Open deck");
b.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
Stage popupStage = new Stage();
popupStage.initOwner(primaryStage);
popupStage.initStyle(StageStyle.UNDECORATED);
Scene sc = new Scene(new ScrollPane(), 300, 300);
popupStage.setScene(sc);
popupStage.focusedProperty().addListener(new ChangeListener<Boolean>() {
#Override
public void changed(ObservableValue<? extends Boolean> observable, Boolean oldValue,
Boolean newValue) {
if(!newValue)
popupStage.close();
}
});
popupStage.show();
}
});
root.setCenter(b);
primaryStage.setScene(scene);
primaryStage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}
It is also possible of course to not open it in a new Stage, but draw a ScrollPane inside the current Stage which overlaps the content of the Stage using for example an AnchorPane or Group as root, but the first solution has the advantage that you are not bound to the dimensions of main Stage (the popup can have any size that you want).

You can achieve this with a low level system hook that catches the mouse events.
http://kra.lc/blog/2016/02/java-global-system-hook/ or https://github.com/kwhat/jnativehook/releases
I hope that is what you needed, otherwise i got your question wrong.