RFR: 8301606: JFileChooser file chooser details view "size" label cut off in Metal Look&Feel
Tejesh R
tr at openjdk.org
Thu Jun 15 09:39:58 UTC 2023
On Thu, 15 Jun 2023 09:00:17 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:
>>> And also it's not possible to verify with background color because anti-aliasing, I guess.
>>
>> Why is it? There's no background anti-aliasing, the background is filled with solid color.
>>
>> You need to use [Robot.createMultiResolutionScreenCapture](https://docs.oracle.com/en/java/javase/17/docs/api/java.desktop/java/awt/Robot.html#createMultiResolutionScreenCapture(java.awt.Rectangle)) to get the real screen pixels rather than scaled down image as if uiScale=1.0.
>>
>> You may need to tweak the position of the capture and the area where you sample the pixels.
>
> It is even simpler. The bug is not `JFileChooser`-specific, it affects each and every `JTable` which has a right-aligned column. Write the test for `JTable` instead. You can have a single right-aligned column with the header text that you control (a lower case letter ‘l’ will do it greatly). You can render the table into a `BufferedImage` with the scale you need (2.25) and then analyse the pixels in the image.
>
> As simple as that. It's not necessary to create real UI for this kind of test.
Yeah, verifying with JTable will be better idea.
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PR Review Comment: https://git.openjdk.org/jdk/pull/14464#discussion_r1230737158
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