Bug 157240 - PRINTING text lines disappear (in fact become white) when printing in grayscale
Summary: PRINTING text lines disappear (in fact become white) when printing in grayscale
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Draw (show other bugs)
Version:
(earliest affected)
7.5.5.2 release
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: bibisected, bisected, regression
Depends on:
Blocks: Options-Dialog-Colours regression-scaled-glyph-positions
  Show dependency treegraph
 
Reported: 2023-09-14 19:04 UTC by mmtsuchi
Modified: 2023-11-22 11:14 UTC (History)
6 users (show)

See Also:
Crash report or crash signature:


Attachments
example to show grayscal bug that turn some text to white color (16.98 KB, application/vnd.oasis.opendocument.graphics)
2023-09-14 19:04 UTC, mmtsuchi
Details
picture to show grayscale printing that turn text white (40.01 KB, image/png)
2023-09-14 19:09 UTC, mmtsuchi
Details

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Description mmtsuchi 2023-09-14 19:04:50 UTC
Created attachment 189576 [details]
example to show grayscal bug that turn some text to white color

Since Libreoffice version between 7.3 and 7.5.5, when you want to **print in grayscale, some text in text frames disappears.**
You can see on preview.
In fact, those texts become white.
Not all text are affected.

Colored and black & white show all text.

Libreoffice 7.3 doesn't show this problem.

Windows and linux versions 7.5.5, 7.5.6, 7.6 show this problem.

Regards
Comment 1 mmtsuchi 2023-09-14 19:09:45 UTC
Created attachment 189577 [details]
picture to show grayscale printing that turn text white
Comment 2 mmtsuchi 2023-09-15 12:37:09 UTC
It seems to be related to 1st line of paragraphs.

When you insert a space character at the begining of paragraph, the bug disappears, the text retrieves its "normal" color when printing in grayscale.
Comment 3 Buovjaga 2023-09-28 10:54:14 UTC
I bibisected the disappearing phenomenon with linux-64-7.5 repo to d5c8b38eab3d3766f403a33e11dffa498655be8f
tdf#152990 set the font after the MapMode is (potentially) set

Originally committed to 7.6 with b008831a5545e5a777d77547ef96b9798d795f30

In 24.2 the automatic text colour in the blue rectangle changed to white and it stays white in the print preview. This changed with ddb483509113e469b771320fea52f1b089574021
Resolves tdf#156182 - Automatic text color unreadable with darker cells
Comment 4 Heiko Tietze 2023-10-16 13:39:03 UTC
Resolved the contrast issues from bug 156182 with https://gerrit.libreoffice.org/c/core/+/158024 (new contrast applies to all colors but Light Blue 2 aka Tango Sky, which is the default for object background). But likely unrelated here.
Comment 5 mmtsuchi 2023-10-16 21:29:13 UTC
But, when I set text color to black (for example), I expected it to be black.