ObservableValue | simple observable that when it 's value | Reactive Programming library

I try to use vlcj-javafx-demo to develop a video player, and I put the progress bar(Slider) on the StackPane over the video layer. In the beginning, it looks work well, but when I set maximum or full screen the app, it looks some components UI did not update correctly. How can I correct it?

Thanks a lot!

normally: [1]: https://i.stack.imgur.com/bbE51.png

normally: [2]: https://i.stack.imgur.com/Plsb1.png the red color is the sence background color.

the code :

I am trying to add Tinymce in our JavaFX desktop application therefore I need a bidirectional communication between Tinymce and FX webview.

What I have done up to now: Integrated Tinymce in javaFX webview and displaying it, but don't know how to communicate between Tinymce and javaFx webview?

Anyone has experience or can answer the following?

• How do I get content from Tinymce to javaFx component for example textarea?
• How to setup Tinymce content from JavaFX after fx application is loaded?

Here are realization source code.

I have two methods in my JavaFX-code for creating TextFields with Bindings. I have to bind ReadOnlyProperty or StringBinding. So I created two methods with different method signatures but with the same code in the block.

How can I simplify my code (with generics?) to handle all the different Properties (String, Long, Object etc.)?

I am trying to create a class which handles zooming and panning components. The class contains references to an Anchorpane, which I am using since it does not do any aligning by default, as well as an ImageView which I want to be able to drag and zoom onto. The zooming and panning both work individually, but I am having trouble re-centering the image once it has been zoomed in or out.

The idea is that I want to be able to recenter the image when the app resizes so that dragging always appears to be relative to the center of the Anchorpane. By default any displacement in an Anchorpane is relative to the top-left corner, but that is not intuitive to the user. It would be much more logical for the content to appear to be moving relative to the center. To achieve this, the idea is to recenter the content whenever the window changes size, and then apply a translation corresponding to the amount of dragging done by the user

If you run the code I posted and zoom in, then resize the window, you'll notice that the red rectangle representing the image goes all over the place. If you shrink the window, then the square will no longer be at the same place as before. This only happens when scaling has been applied and appear to be a problem with the re-centering method.

If the centering method worked correctly, the square should return to the same position is was at before the window was expanded, which happens when the square is at 1 to 1 scale and no zooming has occured

Here is the class I use to handle the zoom and dragging

In my table I have one cell that does not update without interaction with the table.

I found the reason already here Java: setCellValuefactory; Lambda vs. PropertyValueFactory; advantages/disadvantages

My problem is, the default value of the cells item is LocalDate.MIN and I want my cell to contain "---" as long as the item has this default value. When I update the item, I want the cell to contain the current date string.

Item Class:

So, I have got a list view in JavaFX and I have added a checkbox to each cell.

I know this question has already been posted but I had a thorough look into it, and I could not make it work. So here is my config, the code and the runtime exception I get. To be short here is the exception I get : cannot access class com.sun.javafx.webkit.WebConsoleListener (in module javafx.web) because module javafx.web does not export com.sun.javafx.webkit

To be more exhaustive :

IntelliJ Idea using Maven Java openjdk-17 the module-info.java

I have a JavaFX TextField specialized to accept numbers, including scientific notation. It does pretty much everything I want. But, because it accepts scientific notation, it is easy for a user to enter a number beyond the range that can be represented by a double. When they do, the TextField displays "Infinity" (or "-Infinity"). When that happens the field can no longer be edited to correct the problem. The contents cannot be selected and deleted either. Tapping the "Escape" key does not return to the previous contents.

Here is an SSCCE, based closely on the answer by James_D to this question a few years ago.

I have 2 RadioButtons inside a ToggleGroup. I want to be able to deselect a radio button if it is already selected, upon clicking.