Setting the vertical (horizontal as well?) scrollbar positions

For this project, right now I use a TextFlow to insert decorated fragments of text.

When a parsing node is selected, I change the text content into the TextFlow and set the relative vertical scrollbar position so that the beginning of the match, or failure, is visible.

But I can’t do that with RichTextFX as far as I can see.

The problem is that in order to better highlight the match, I change the text entirely. I collect the fragments, build the new string and .clear() then .appendText(), this works, I get the new text; and I can style it correctly.

But the scrollbar always jump to the bottom and I can’t get it to position where I want; moreover, if I try and insert the widget into a ScrollPane (which is what I do with a TextFlow, and which is how I can position the scrollbar), the widget doesn’t size correctly…

So, do I have to use a ScrollPane anyway? Or how do I position the scrollbar to where I want?

[TomasMikula]

The problem with your example is that the moveTo/selectRange work-around does not work before the skin is instantiated. If in your example you surround the selectRange in Platform.runLater, that will give you the desired result. Also note that the range is given in character indices, not line numbers.

Platform.runLater(() -> area.selectRange(10000, 10100));

In the code that results from user’s interaction after the text area has already been shown, you will not need Platform.runLater anymore.

[isjns]

Thanks!