On Mon, 9 Nov 2020 11:34:25 GMT, Jose Pereda <jper...@openjdk.org> wrote:
> As commented in the [JBS > issue](https://bugs.openjdk.java.net/browse/JDK-8199592), the default UI > scale 1.0 is used to perform initial calculations of preferred sizes of the > scene, even if the scale has already a different value (i.e 175%). As a > workaround, calling `Stage::sizeToScene` fix it, as it forces to do new > calculations but now with the correct UI scale. > > This PR moves the call to `Window::updateOutputScales` before the scene > initialization takes place, so the UI scale is correctly set for the initial > preferred size of the scene, and no workaround is required. > > It also provides a system test that can be tested on Linux and Windows. > Before applying the fix, the `Check` text of the checkboxes is rendered as > `Che...`. With the fix, the test verifies, for a given UI scale, that the > rendered text is `Check`. tests/system/src/test/java/test/javafx/scene/UIRenderSceneTest.java line 83: > 81: new Thread(() -> Application.launch(TestApp.class, > (String[])null)).start(); > 82: try { > 83: if (!startupLatch.await(15, TimeUnit.SECONDS)) { If you add `throws Exception` to this method you can get rid of the try/catch and just do: assertTrue("Timeout waiting for FX runtime to start", startupLatch.await(15, TimeUnit.SECONDS)); (this is the pattern we use for most of our newer tests) ------------- PR: https://git.openjdk.java.net/jfx/pull/351
