https://bugs.kde.org/show_bug.cgi?id=450577
Bug ID: 450577
Summary: Contiguous Selection Tool Hangs when double clicking
on large canvas
Product: krita
Version: 5.0.2
Platform: Appimage
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Tools/Selection
Assignee: krita-bugs-n...@kde.org
Reporter: fullmon...@gmail.com
Target Milestone: ---
SUMMARY
The Contiguous Selection Tool hangs Krita when double clicking on the canvas.
By double clicking I mean clicking before the previous Contiguous Selection
operation has concluded. If I only click once, the selection is completed
correctly without issues.
This only seems to be reproducible for me on large enough canvases in which the
selection operation is not instantaneous, so this may depend on the system
specs. It was reproducible for me down to a 1000x1000 canvas if I double click
fast enough, but I also have a rather low end CPU (Ryzen 1300)
STEPS TO REPRODUCE
1. Open large enough empty canvas (2000x2000 or more)
2. Select Contiguous Selection Tool and Double click on canvas
OBSERVED RESULT
Krita hangs and one core of the CPU is fully maxed until Krita is killed. Any
other operation hangs, and trying to save the file opens the Continue/Stop
operation and save/Close dialogue, but clicking on any button has no effect.
The only way to resume work on krita is killing the window and opening a new
session.
EXPECTED RESULT
The canvas is completely selected and the program resumes normal function
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Xubuntu 20.04.3 LTS
Qt Version: qt5-default 5.12.8+dfsg-0ubuntu2.1
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