RFR: WIP: 8236651: Simplify and update glass gtk backend

Thiago Milczarek Sayao tsayao at openjdk.java.net
Thu Jan 23 14:17:02 UTC 2020

On Tue, 14 Jan 2020 11:30:49 GMT, Thiago Milczarek Sayao <tsayao at openjdk.org> wrote:

>> I understand. Will do that when the code works 100%. I have submitted the PR to avoid duplicated efforts and let people test it (if anyone is willing).
> Sizing and positioning completed and fairly tested.
> Will look into mouse grabbing.

Performance test (on my setup, it runs slightly faster with this patch):

import javafx.application.Application;
import javafx.application.Platform;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.stage.Stage;

import java.time.Duration;
import java.time.Instant;
import java.util.Timer;
import java.util.TimerTask;

public class HelloFx extends Application {

    public HelloFx() {

    public void start(Stage stage) {
        Instant start = Instant.now();

        Scene mainScene = new Scene(new Label("Perfomance test"), 600, 600);

        for (int i=0; i<1000; i++) {
            Stage stage1 = new Stage();
            Scene scene = new Scene(new Label("hi"), 200, 200);

            stage1.setOnShown(e -> new Timer().schedule(
                    new TimerTask() {
                        public void run() {



        Instant end = Instant.now();

        System.out.println(Duration.between(start, end).toString()
                .replaceAll("(\\d[HMS])(?!$)", "$1 ")



PR: https://git.openjdk.java.net/jfx/pull/77

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