How to calculate distance from Stage to Root accounting possible CSS transformations?

[Thiago Milczarek Sayão]

Hi,

I want to calculate where to display resize cursors when resizing an
TRANSPARENT Stage + Scene with rounded borders.

- Stage
--- Scene
---- Root

I don't think we would have to be pixel-exact, the resize cursors could be
displayed between Stage and begin of Root actual content.
The actual content could be distant from its "layout box", because of a
border or a padding, for example.

https://github.com/tsayao/jfx/blob/begin_window_move/tests/manual/graphics/StageBeginMoveDragTest.java

Any ideas?

Thanks.
-- Thiago.
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