Bug 444935

Summary: Thumbnail bar should try to maintain its scroll position while resizing it
Product: [Applications] gwenview Reporter: Nagy Tibor <xnagytibor>
Component: generalAssignee: Gwenview Bugs <gwenview-bugs-null>
Status: CONFIRMED ---    
Severity: minor CC: nate
Priority: NOR Keywords: usability
Version First Reported In: 21.08.2   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Screen capture
Mockup

Description Nagy Tibor 2021-11-04 10:24:49 UTC
Created attachment 143193 [details]
Screen capture

SUMMARY
The thumbnail bar of Gwenview currently doesn't maintain its scroll position while you resize it. This leads to two issues:
- You temporarily lose your current position on the thumbnail bar until you step an image forward or back.
- Looks extremely janky.

STEPS TO REPRODUCE
1. Open a folder with hundreds of images
2. Select an image halfways through that folder
3. Enable the thumbnail bar
4. Resize the thumbnail bar

OBSERVED RESULT
Thumbnail bar doesn't keep its position while resizing it and scrolls around crazy. See attachment.

EXPECTED RESULT
Gwenview should try to maintain the scroll position of thumbnail bar while resizing it.

SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.23
KDE Plasma Version: 5.23.2
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.3
Graphics Platform: X11
Comment 1 Nagy Tibor 2021-11-05 02:31:29 UTC
Created attachment 143225 [details]
Mockup

A quick mockup how I would expect this to work. Notice the scaling reference point at the centerline of the thumbnail bar's current viewport.
Comment 2 A Linux User 2025-09-04 12:18:50 UTC
Thank you for the bug report. Unfortunately we were not able to get to it yet. Can we ask you to please check if this is still an issue with Gwenview 25.08.0 (the latest released version)?