<AWT Dev> [9] Review request for 8149115: [hidpi] Linux: display-wise scaling factor should probably be taken into account

Semyon Sadetsky semyon.sadetsky at oracle.com
Wed Jul 6 13:46:16 UTC 2016

On 7/6/2016 12:26 PM, Alexandr Scherbatiy wrote:

> On 7/5/2016 9:59 PM, Semyon Sadetsky wrote:
>> Hello,
>> Please review fix for JDK9:
>> bug: https://bugs.openjdk.java.net/browse/JDK-8149115
>> webrev: http://cr.openjdk.java.net/~ssadetsky/8149115/webrev.00/
>> Currently the hidpi support on linux only reads GDK_SCALE environment 
>> variable to get the native scale. Although, Gnome3 and Unity DE use 
>> own settings to control the interface scale. The fix adds possibility 
>> to read those settings to make java apps hidpi scale similar to the 
>> native apps. Currently only integer scale values are supported. If 
>> native scale is not an integer value it is rounded to the nearest 
>> integer.
>   systemScale.c
>    Should the while loop have a break statement in the 
> getDesktopScale(...) method?
That's make sense. Please look at the updated webrev: 


>   Thanks,
>   Alexandr.
>> --Semyon

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