Hello Andrei,
You may want to update your test case so that it generates icons on the
fly and uses numbers to easily distinguish one from another. You can get
code from WindowIconUpdateOnDPIChangingTest.java [1].
You can read the commends in PR #6180 [2] where the test was added.
During the code review, it was determined the fix wasn't applicable to
Linux and macOS, so only Windows-specific changes remain.
As far as I know, Ubuntu doesn't show icons in the title bar of a
window, there's an app icon on the dock only, similar to macOS.
Javadoc for Window.setIconImages [3] mentions, “the icons list can
contain MultiResolutionImage images”.
Disclaimer: I didn't run the test case.
--
Regards,
Alexey
[1]
https://github.com/openjdk/jdk/blob/6864441163f946d0bec7380a2a120e31b812a6dc/test/jdk/java/awt/Window/WindowIconUpdateOnDPIChanging/WindowIconUpdateOnDPIChangingTest.java
[2] https://github.com/openjdk/jdk/pull/6180
[3]
https://docs.oracle.com/en/java/javase/17/docs/api/java.desktop/java/awt/Window.html#setIconImages(java.util.List)
On 08/08/2023 19:40, Andrei Rybak wrote:
Hello,
I've reported https://bugs.openjdk.org/browse/JDK-8313698 and, unfortunately,
there's some confusion in the ticket due to my poor choice of words for
describing the _default_ icon of the JFrame. The default icon depends on the
vendor of the JDK, and it isn't the Duke icon for all of them. As can be seen
from file "Capture_Windows.PNG" in the Jira issue, it can also be the coffee
cup Java logo.
Because the person who reproduced the bug (Praveen Narayanaswamy) used
two images of Duke for files icon32x32.png and icon64x64.png [1] as input for
the _custom_ icon with BaseMultiResolutionImage, it gets really confusing.
My reproducer, available on GitHub, just uses two images of the numbers "32"
and "64" [2] for clarity. I have updated the wording in the reproducer on GitHub
to stop mentioning the Duke icon.[3]
I hope this clarifies the ticket description.
[1] The images in the Jira issue right now are not of the resolution claimed
in the filenames, but the resolution doesn't matter for the bug's
reproducibility.
[2]
https://github.com/rybak/foobar/blob/master/baz/src/main/resources/swing/icon32x32.png
and
https://github.com/rybak/foobar/blob/master/baz/src/main/resources/swing/icon64x64.png
with honest resolutions, just to be as close as possible for the
actual use-case.
[3] up-to-date reproducer on the branch master:
https://github.com/rybak/foobar/blob/master/baz/src/main/java/swing/MultiResolutionImageBug.java
