Sorry for the delay in responding. I can reproduce this on macOS. I
haven't tried on Linux, but I suspect it will reproduce there as well. I
added an evaluation to the bug report:
https://bugs.openjdk.java.net/browse/JDK-8243939
I don't think this will be an easy bug to fix. In the mean time, the
suggested workaround of setting the Scene fill to a color that matches
(as closely as possible) the color of the scene as it is initially
rendered is the best I can think of.
-- Kevin
On 4/23/2020 4:52 AM, Dirk Lemmermann wrote:
Ticket created: ID 9064689
Dirk
On 23 Apr 2020, at 13:40, Dirk Lemmermann <dlemmerm...@gmail.com> wrote:
I think this is a bug … I will create a ticket for it. When this behaviour was
fixed for Swing in Java 6 it made a huge difference in the perception of the
quality and performance of Java applications. Could do the same for JavaFX.
Dirk
On 22 Apr 2020, at 20:17, Tom Schindl <tom.schi...@bestsolution.at> wrote:
yes I do but I think this is by nature:
a) you use CSS so only after the first CSS-Pass the color could be set
appropriately, this CSS pass could happen after the Native-Window is
shown
=> you can mitigate that a bit using
root.setBackground(new Background(new BackgroundFill(Color.ORANGE,
CornerRadii.EMPTY, Insets.EMPTY)));
b) if the above gives you short flash (IMHO shorter than with CSS) and
you can see that by setting eg RED or GREEN as the Scene-Fill so then
it gets more prominent
So the flash is gone if you put the same color to Scene.setFill() as your
root-Pane but now something slightly unexpected happens. The trim is colored
slighly in your scene-color ;-)
Tom
Am 22.04.20 um 19:46 schrieb Dirk Lemmermann:
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class BugDemo extends Application {
public void start(Stage stage) {
VBox root = new VBox();
root.setStyle("-fx-background-color: orange;");
Scene scene = new Scene(root, 1000, 800);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}
