RFR: 8340344: The first item in TreeView is not aligned in the beginning [v5]

[Ziad El Midaoui]

On Wed, 14 May 2025 17:27:59 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

>>> does this create any visual artifacts?
>> 
>> No artifacts, just that one can notice the re-layout and the TreeCell shift to right.
>
> this is the expected behavior though, right?
> 
> what we **don't** want is the flicker - when the re-layout is needed but happens in another pulse.  When e.g. scrollbars need to appear/disappear it may even lead to flicker that does not end.

Yes normally it is expected to see this behavior since we do a re-layout so the TreeCells are updated with a new `defaultDisclosureWidth` value, I tested it and I do not see a flicker on my system.

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PR Review Comment: https://git.openjdk.org/jfx/pull/1715#discussion_r2089508605