Bug: ToolBar always using overflow menu whenever a scaled resolution set

[Cormac Redmond]

Confusingly, make the string longer, such as "Create Schema 123 123 123":

        bp.setTop(new HBox(new ToolBar(new Button("Create Schema 123 123
123"))));

...and the overflow doesn't appear (but still, anything between and
including 13-24, it does):

[image: image.png]




Kind Regards,
Cormac

On Sat, 19 Jul 2025 at 11:12, Cormac Redmond <credmond at certak.com> wrote:

> Hi,
>
> There's a bug whenever using a ToolBar on Windows if you set your
> resolution scale > 100% (which is quite common). E.g., 125%:
>
> [image: image.png]
>
> E.g., this is what a ToolBar always renders if scale is 125%:
>
> [image: image.png]
>
> As compared to what you'd expect (scale set to normal/100%):
>
> [image: image.png]
>
> Very easy to reproduce the above, set your scale to 125% and run this:
>
> public class ToolbarBugApp extends Application {
>
>     @Override
>     public void start(Stage primaryStage) {
>         BorderPane bp = new BorderPane();
>         // Wrapping in HBox and using button with 13+ chars causes bug
>         bp.setTop(new HBox(new ToolBar(new Button("Create Schema")))); //
> BUG
>         // bp.setTop(new ToolBar(new Button("Create Schema"))); // NO BUG
> (no HBox)
>         // bp.setTop(new HBox(new ToolBar(new Button("Create Schem"))));
> // NO BUG (12 chars)
>         primaryStage.setScene(new Scene(bp, 600, 400));
>         primaryStage.show();
>     }
>
>     public static void main(String[] args) {
>         launch(args);
>     }
> }
>
> As per the comments, this bug appears to happen when your ToolBar is
> wrapped in a HBox and contains a Button that has 13+ characters, for
> example. This is quite a serious bug, in my opinion.
>
> I believe this is present in JFX 24 and the JFX 25 master branch.
>
>
> Kind Regards,
>
> *Cormac Redmond*
> Software Engineer, Certak Ltd.
>
> e: credmond at certak.com | m: +353 (0) 86 268 2152 | w: www.certak.com
>
>
>
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