On Sat, 12 Dec 2020 22:31:56 GMT, Kevin Rushforth <k...@openjdk.org> wrote:
>
>
> One more comment: given the quality problems that necessarily arise when the
> translation of a cached image is not on an integer boundary, part of the
> solution might be to snap the cached image to a pixel boundary as is done in
> this PR, but we would need to ensure that this doesn't impact smooth
> scrolling of a TextArea.
I've done some quick tests with the minimal sample below, and could not notice
any performance impact with this patch compared to 15.0.1.
java
public class TextScroll extends Application {
@Override
public void start(Stage stage) throws Exception {
var textArea = new TextArea();
var txt = new
File(getClass().getResource("/Scrollpane.java").getFile());
textArea.setText(Files.readString(txt.toPath(),
StandardCharsets.UTF_8));
var root = new ScrollPane(textArea);
root.setFitToHeight(true);
root.setFitToWidth(true);
Scene scene;
scene = new Scene(root, 800, 600);
stage.setTitle("Scroll test");
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}
-------------
PR: https://git.openjdk.java.net/jfx/pull/308
