RFR: 8274932: Render scales in EmbeddedWindow are not properly updated [v8]

[Andy Goryachev]

On Thu, 3 Aug 2023 04:06:04 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> When the JavaFX scene is set before it is really shown, then the scale factors are not properly propagated to the EmbeddedWindow, resulting in showing wrong scales.
>> Fix is made to update scales to EmbeddedWindow
>
> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Call updateSceneState with lock and in FX thread

modules/javafx.swing/src/main/java/javafx/embed/swing/JFXPanel.java line 826:

> 824:             }
> 825:             double newScaleFactorX = config.getDefaultTransform().getScaleX();
> 826:             double newScaleFactorY = config.getDefaultTransform().getScaleY();

minor suggestion: create a method get[Current]Transform() to avoid code duplication (here and line 621)

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PR Review Comment: https://git.openjdk.org/jfx/pull/1171#discussion_r1283538380