Bug 426679 - Pinch to zoom results in scrolling in large documents
Summary: Pinch to zoom results in scrolling in large documents
Status: RESOLVED DUPLICATE of bug 159408
Alias: None
Product: okular
Classification: Applications
Component: PDF backend (show other bugs)
Version: 1.11.1
Platform: Manjaro Linux
: NOR normal
Target Milestone: ---
Assignee: Okular developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-09-18 10:42 UTC by jan.claussen10
Modified: 2021-01-19 15:55 UTC (History)
2 users (show)

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Description jan.claussen10 2020-09-18 10:42:06 UTC 
SUMMARY
When you pinch to zoom on a convertible laptop, Okular scrolls up very fast. The larger the document, the worse it is.

STEPS TO REPRODUCE
1. Open a large PDF in Okular
2. Use pinch to zoom

OBSERVED RESULT
Okular scrolls up

EXPECTED RESULT
It should only zoom

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Manjaro
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.73.0
Qt Version: 5.15.1

ADDITIONAL INFORMATION
This bug was also a problem in Xournal++ and they kind of fixed it by stopping the scrolling process. This results in scrolling up just a bit and eventually in a trembling effect. I can imagine that this bug is though deep inside of qt5 or the KDE framework.
Comment 1 Oliver Sander 2020-09-18 13:44:24 UTC 
Will this be fixed by https://invent.kde.org/graphics/okular/-/merge_requests/134 ?
Comment 2 Nate Graham 2020-09-18 21:31:14 UTC 

*** This bug has been marked as a duplicate of bug 421755 ***
Comment 3 Nate Graham 2021-01-19 15:55:25 UTC 

*** This bug has been marked as a duplicate of bug 159408 ***