RFR: 8211294: [windows] TextArea content is blurry with 125% scaling

Frederic Thevenet fthevenet at openjdk.java.net
Wed Oct 21 07:04:06 UTC 2020


On Fri, 25 Sep 2020 09:32:46 GMT, Frederic Thevenet <fthevenet at openjdk.org> wrote:

>> The visual representation corresponds with digits, so there can be tests that check if the numbers are what we expect
>> them to be.  It's good that this is not windows-only, so that it can be tackled on linux as well. But what is not clear
>> to me: does this require a physical HiDPI screen, or is setting the scale factor manually good enough to reproduce the
>> bug?
>
>> 
>> 
>> The visual representation corresponds with digits, so there can be tests that check if the numbers are what we expect
>> them to be. It's good that this is not windows-only, so that it can be tackled on linux as well. But what is not clear
>> to me: does this require a physical HiDPI screen, or is setting the scale factor manually good enough to reproduce the
>> bug?
> 
> The issue will appear consistently as long as the conditions I listed are met, regardless of the actual number of
> pixels the physical screen can display. For instance you'll see the problem, if you apply a 125% scaling on 1080p
> screen (a common configuration on 13'' laptops). Also, it will occur regardless of whether the scaling is applied at
> the OS level and picked up by javafx or if it is only set for a single application using the `glass.xxx.uiScale`
> property.

Hello,
Did anyone get a chance to look into this?
Thanks!

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PR: https://git.openjdk.java.net/jfx/pull/308


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