[Libreoffice-bugs] [Bug 52105] LO Borders of tables are not displayed correctly in Calligra, other software

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=52105

Michael Stahl <mstahl at redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |markus.mohrhard at googlemail.
                   |                            |com, mstahl at redhat.com,
                   |                            |tbehrens at suse.com
           See Also|                            |https://bugs.freedesktop.or
                   |                            |g/show_bug.cgi?id=53287

--- Comment #5 from Michael Stahl <mstahl at redhat.com> 2012-08-22 12:31:47 UTC ---
so i guess the problem here is not that LO doesn't do anti-aliasing of borders:
it does that, and does it wrongly, which makes borders look fatter
than they should, see e.g. bug 53287.

the problem is that OOo has traditionally interpreted a border width
of 1 twip/0.05 pt specially as a "hairline", which (if my nonexistent
knowledge of all things graphics doesn't betray me) means it renders
these as solid 1 device pixel wide lines.

unfortunately ODF doesn't allow to express a "hairline" border as such,
hence OOo/LO also write 0.05pt (or equivalent 0.002cm) in ODF for these.

apparently Calligra sees this differently, interprets the width literally
and creates a barely visible gray line:

http://bugsfiles.kde.org/attachment.cgi?id=72570

whose bug that is is not clear to me :)

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