[Libreoffice-bugs] [Bug 77346] FORMATTING: Calc becomes slow after selecting cells and activating font chooser with previews enabled (summary: comment 29)

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=77346

--- Comment #36 from Ryan Tandy <ryan at nardis.ca> ---
Hello,

I tested this again with:

- Calc 5.4.3.2 on Debian 9.3 (stretch)
- Calc 5.3.7.2 on Windows 10

and following the instructions in comment #23.

The behaviour does seem to have changed since I originally reported the bug. I
no longer experience a lag of several seconds. However, Calc does still become
noticeably less responsive after Select All (Ctrl-A) and changing the font.

It's easy to see if you use the arrow keys to move around: immediately after
opening the document, arrow key navigation is quite responsive; but after
changing the font on the entire document, there is noticeable lag in redrawing
the row/column indicators.

Even though it's much better than it used to be, as the steps to reproduce
still result in a visible change in UI performance, I'm leaving the status as
open for now.

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