RFR: 8345261: Refactor the Dimension2D classes

[Nir Lisker]

On Fri, 29 Nov 2024 17:00:42 GMT, Nir Lisker <nlisker at openjdk.org> wrote:

> A small refactoring of the Dimension classes.
> 
> * `com.sun.javafx.geom.Dimension` was removed and its uses were replaced by `com.sun.javafx.geom.Dimension2D`.
> * `com.sun.javafx.geom.Dimension2D` became a record.
> * `javafx.geometry.Dimension2D`: fields became `final`.
> 
> I'm not sure we need the implementation class at all considering we are free to use the public one.

Thanks John. Because it's the weekend I'll wait until Monday evening with this.

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PR Comment: https://git.openjdk.org/jfx/pull/1653#issuecomment-2508938693