RFR: 8369836: Update HeaderBar API

[Michael Strauß]

Yes, exactly. "Left" and "right" is used in several places in JavaFX
(BorderPane, AnchorPane, Insets) to effectively mean "leading" and
"trailing".
HeaderBar is different, because it uses "left", "right", as well as
"leading" and "trailing" with a different definition than the other
controls (leading and trailing are RTL adjusted, while left and right
are not).
My proposal is to just accept that "left" and "right" are JavaFX
terminology for RTL-adjusted leading and trailing areas.


On Tue, Oct 14, 2025 at 6:52 PM Andy Goryachev
<andy.goryachev at oracle.com> wrote:
>
> Can you clarify what you mean by "aligning with" BorderPane?
>
> Does it mean we are trying to propagate somewhat misleading terminology that was used by the BorderPane (setLeft() in RTL mode results in the added node on the right side, so it should really be named something like setLeading() instead of setLeft()).
>
> Thanks,
> -andy