Bug 418170 - Text becomes blurry during expanding animation of treeview at 1.5x scale factor
Summary: Text becomes blurry during expanding animation of treeview at 1.5x scale factor
Status: RESOLVED UPSTREAM
Alias: None
Product: systemsettings
Classification: Applications
Component: general (show other bugs)
Version: 5.17.5
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-02-25 12:02 UTC by postix
Modified: 2020-02-25 16:30 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In:

Attachments
Screenshot of the current of font selection dialog. (238.48 KB, video/mp4)
2020-02-25 12:02 UTC, postix 		Details
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Description postix 2020-02-25 12:02:13 UTC 
Created attachment 126400 [details]
Screenshot of the current of font selection dialog.

SUMMARY

Expanding an item in the treeview of the Font Managment KCM makes the items, which will shift downwards, become blurry, during the animation. Please see the recording.

SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux 
KDE Plasma Version: 5.17.5
KDE Frameworks Version: 5.67.0
Qt Version: 5.14.1
Kernel Version: 5.5.2-1-MANJARO

ADDITIONAL INFORMATION
Scaling: 1.5
Comment 1 postix 2020-02-25 12:10:18 UTC 
This happens at all KCM which uses a tree view.
Comment 2 Nate Graham 2020-02-25 16:16:35 UTC 
Does this affect tree views outside of System Settings too?
Comment 3 Kai Uwe Broulik 2020-02-25 16:17:28 UTC 
QTreeView takes a pixmap of the item for the animation and probably forgot to take into account devicePixelRatio there.
Comment 4 Kai Uwe Broulik 2020-02-25 16:30:11 UTC 
Upstream fix: https://codereview.qt-project.org/c/qt/qtbase/+/291947