Bug 88755 - LibreOffice Calc - Conditional Format - Color Bar functionality desperately needs improvements and corrections
Summary: LibreOffice Calc - Conditional Format - Color Bar functionality desperately n...
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: LibreOffice (show other bugs)
(earliest affected) release
Hardware: Other All
: medium normal
Assignee: Not Assigned
Depends on:
Reported: 2015-01-23 16:41 UTC by icerabbit
Modified: 2015-11-21 20:04 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:

Column exhibiting value 1-60 yellow green 4 to red 2 = black in the middle (56.55 KB, image/jpeg)
2015-01-23 16:47 UTC, icerabbit

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Description icerabbit 2015-01-23 16:41:00 UTC
Working on a quick table to analyze some information and figuring Conditional Format - > Color bars would be great. Just green to red. 

It is a struggle to pick the same colors over time for several sets of data, because:

- you can only see three colors at a time in a scrolling menu
>>> request a larger UI window with 24-36 or so most common quick picks - see for example the font or background color picker

- like colors are not grouped, for instance no grouping of greens reds blues etc they're all over the list

- some of the colors are imo grossly unusable or non-existent some of the reds for instance are just black on screen, one sees this in the font and background color picker too, but it is easier to ignore.

- there are also problems whereby a green to red scale turns certain cells black, which I cannot figure out. I have a simple 0 - 60 value bar and the exact middles turn black???
>>> Added problem here is that when the cell turns dark, there is no automatic switching to white font, so you could actually read the value in the cell. 

So you'd need an additional conditional format or systemwide preference, if cell is shaded above a certain value and contrast between cell shade and font color is less than x then switch default text color from black to white.
Comment 1 icerabbit 2015-01-23 16:47:38 UTC
Created attachment 112733 [details]
Column exhibiting value 1-60 yellow green 4 to red 2 = black in the middle

Color Scale example value 1-60 yellow green 4 to red 2 with unexpected black in the middle, rendering text unreadable.

Brown would be expectable, but maybe there should also be an option to % darken / lighten the background effect.

PS: forgot to say LIVE PREVIEW of chosen settings in color scale would be nice, so you can adjust before you apply. 

It is tedious to have to redo this, with same selection, back into the menu etc to get something that works. 

As there's no edit last adjustment made, to just change one color. 

Only CLEAR or UNDO which means starting over making selections :(
Comment 2 m.a.riosv 2015-01-24 21:46:52 UTC
Hello @icerabbit,

Thank you for reporting the bug. Please attach a sample document, as this makes it easier for us to verify the bug. 
I have set the bug's status to 'NEEDINFO'. Please change it back to 'UNCONFIRMED' once the requested document is provided.
(Please note that the attachment will be public, remove any sensitive information before attaching it. 
See https://wiki.documentfoundation.org/QA/FAQ#How_can_I_eliminate_confidential_data_from_a_sample_document.3F for help on how to do so.)
Comment 3 m.a.riosv 2015-08-23 23:47:47 UTC
Please @icerabbit, is the issue solved?
Comment 4 m.a.riosv 2015-11-21 20:04:59 UTC
Resolved, three months without any input from reporter.
Please if bug remain with last versions, open it again.