RFR: 8318577: Windows Look-and-Feel JProgressBarUI does not render correctly on 2x UI scale [v2]

[Prasanta Sadhukhan]

On Wed, 22 Jan 2025 07:02:21 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> JProgressBar (StringPainted variant) does not render consistently on HiDPI displays (e.g. 200% Scale Factor) on Windows (using Windows Look-and-Feel) depending on the height at which JProgressBar is rendered, in which case the gap between progressbar and skin is different for different height as can be seen below
>> 
>> ![image](https://github.com/user-attachments/assets/5552ba7d-f747-4037-9db0-e1554f8b35d9)
>> 
>> Native windows progressbar renders without leaving any gap as can be seen here
>> 
>> ![image](https://github.com/user-attachments/assets/672a5810-1c44-4c22-aef2-93abde536bca)
>> 
>> so the padding is removed to render the progressbar similar to windows native and it is rendered properly
>> 
>> ![image](https://github.com/user-attachments/assets/ecb25140-8df2-47e2-bde5-925eb031bedb)
>
> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   summary update

Actually there is no "border"..the gray "border" is a Skin image drawn using drawImage and the blue progressbar inside it is a drawline with set stroke of height "preferredHeight" as set by application and I have modified to use scaling factor for the line width/height

-------------

PR Comment: https://git.openjdk.org/jdk/pull/23227#issuecomment-2612399711