CODEWITHSUNDEEP
javajavafx
Quickz
Quickz

Reputation: 1836

JavaFX - How to sync up TextArea scroll bar and ScrollPane scroll bar

I have a TextArea element which itself has a scroll bar and a separate ScrollPane which has a scroll bar. How can i make one of the scroll bars match their position with the other one?

I have been looking up methods for acquiring the position of a scroll bar.

For ScrollPane there is .getVvalue() which returns a double from 0 to 1. Basically like a percentage value of sort.

For TextArea there's .getScrollTop() which also returns a double but it's maximum value is unknown pretty much unless you manually scroll the bar down to find out the position at the very bottom.

Since they both return different values I would have to know the maximum position for both of them.

Upvotes: 1

Views: 370

Answers (1)

ricky3350
ricky3350

Reputation: 1738

A TextArea has one child, which is its ScrollPane. The percentage scroll can therefore be found as

((ScrollPane) textArea.getChildrenUnmodifiable().get(0)).getVvalue()

Hope this helps!

Upvotes: 2

Related Questions