[Konsole-devel] [konsole] [Bug 297390] When wide characters appear on a line, Konsole cuts off half a letter

[Alexander Kowalski]

https://bugs.kde.org/show_bug.cgi?id=297390

Alexander Kowalski <alexander at kowalski.pw> changed:

           What    |Removed                     |Added
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                 CC|                            |alexander at kowalski.pw

--- Comment #17 from Alexander Kowalski <alexander at kowalski.pw> ---
Created attachment 94081
  --> https://bugs.kde.org/attachment.cgi?id=94081&action=edit
Screenshot showing where the letters are cut off

Someone posted a new bug (bug 351380) yesterday which is a duplicate of this
one, but it made it (in my opinion) more clear where the cutting off of the
characters happens.

It was already mentioned that following a wide character, from the cursor on
the rest is drawn correctly again, but this also happens on any other color
change (and I could imagine maybe bold/underlined too, but I didn't check).
To show this, I expanded the test case from that bug and made a screenshot of
it.
As you can see, the last misaligned character is always cut off when the color
changes.
If you print only the text in red, it is cut off at the end of the line; if you
don't change the color, you don't see any cut off, but if you just add one
"red" space after the text, it will cut off the last character again.
This also happens when you select part of the line (presumably the fg/bg colors
are just inverted for that part) or put the cursor in the line (but that isn't
shown in the screenshot).
You can also see this happening in the input lines due to my syntax
highlighting.

Tested with konsole 15.08.0

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