[Libreoffice-bugs] [Bug 114767] New: EDITING - Calc slows down then freezes when a few cells are selected

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=114767

            Bug ID: 114767
           Summary: EDITING - Calc slows down then freezes when a few
                    cells are selected
           Product: LibreOffice
           Version: 5.4.4.2 release
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: bugs.documentfoundation at ltch.fr

Description:
When a sufficient amount of cells (6 on an old laptop, ~20 on a recent one) are
selected in 5.4.4.2 there is an increasing delay when selecting new cells until
Calc freezes.

It happens with or without OpenCL enabled.

I can't reproduce it with 6.0.0-rc1.

Steps to Reproduce:
- Open a new spreadsheet in calc.
- Hold CTRL
- Click on empty non-adjacent cells to select them. The slowdown happens around
20 cells selected.

Actual Results:  
Calc slows down and freeze

Expected Results:
The selection of new cells should not freeze Calc.


Reproducible: Always


User Profile Reset: Yes


OpenGL enabled: Yes

Additional Info:
Version: 5.4.4.2
Build ID: 5.4.4-1
Threads CPU : 4; OS : Linux 4.14; UI Render : par défaut; VCL : gtk3; 
Locale : fr-FR (fr_FR.utf8); Calc: CL


User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:59.0) Gecko/20100101
Firefox/59.0

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