https://bugs.freedesktop.org/show_bug.cgi?id=77346
Priority: medium
Bug ID: 77346
Assignee: [email protected]
Summary: FORMATTING: Calc becomes slow after selecting cells
and activating font chooser with previews enabled
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: [email protected]
Hardware: Other
Whiteboard: BSA
Status: UNCONFIRMED
Version: 4.2.0.4 release
Component: Spreadsheet
Product: LibreOffice
Problem description:
Since 4.2, Calc becomes very slow after selecting some cells and activating the
font chooser (for example to pick a font from the dropdown, or to type a font
name). Verified on 4.2.3~rc3 under Ubuntu 12.04, Ubuntu 14.04, and Windows 7.
Not tested on master yet, will do as soon as I have time.
The effect increases with the size of the spreadsheet and the number of cells
selected. In a spreadsheet with 200 rows and 15 columns, after doing Select All
and opening the font dropdown, any operation like moving the cursor to another
cell or selecting some rows makes Calc stop responding (taking 100% cpu) for
seconds or even minutes. In a 26x26 spreadsheet (just a-z in rows and columns)
it's less severe but still noticeable.
Changing the font size doesn't trigger it.
If I disable "Show preview of fonts" (Options - LibreOffice - View), it doesn't
happen any more after quitting Calc and starting it again. (The option is
enabled by default.)
Bibisect points to bcc51fb2ebdf77a1cc089857775fd742085b45b6 ("add support for
in-place style preview") as the first bad commit.
Operating System: Ubuntu
Version: 4.2.0.4 release
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