RFR: 8307208: Add GridPane constructor that accepts hGap and vGap values

[Andy Goryachev]

On Wed, 3 May 2023 20:13:42 GMT, Marius Hanl <mhanl at openjdk.org> wrote:

> This PR adds a new constructor to `GridPane` that accepts a `hgap` and a `vgap`.
> As also written in the ticket, this is a small enhancement to improve the creation of a layout involving a `GridPane` without FXML.
> In my experience, the `hgap` and the `vgap` are almost always set when creating a layout with the `GridPane`, as a space between the content just looks much better.
> 
> This also fits well with other classes like `HBox` and `VBox`, which also provide a constructor that accepts the spacing.

minor change requested, otherwise looks good!

modules/javafx.graphics/src/main/java/javafx/scene/layout/GridPane.java line 737:

> 735:     }
> 736: 
> 737:     /**

we probably need to update the year `2011, 2023,` in the header

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Changes requested by angorya (Committer).

PR Review: https://git.openjdk.org/jfx/pull/1125#pullrequestreview-1411745023
PR Review Comment: https://git.openjdk.org/jfx/pull/1125#discussion_r1184220421