https://bugs.kde.org/show_bug.cgi?id=502233
Christoph Cullmann <christ...@cullmann.dev> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Latest Commit| |https://invent.kde.org/fram
| |eworks/ktexteditor/-/commit
| |/0cb99379131b6fb2b80637e6e8
| |6da428a630f3bf
Resolution|--- |FIXED
--- Comment #4 from Christoph Cullmann <christ...@cullmann.dev> ---
Git commit 0cb99379131b6fb2b80637e6e86da428a630f3bf by Christoph Cullmann, on
behalf of Waqar Ahmed.
Committed on 12/06/2025 at 19:45.
Pushed by cullmann into branch 'master'.
Draw selection background ourselves
We were using the "selectionFormats" parameter of QTextLayout::draw()
to draw selections and supplied background + foreground formats for
drawing selections. This leads to extremely poor performance when
there are a lot of "selection formats" e.g., a large list of numbers
on a single line.
To fix this, draw the selection background ourselves and handle the
foreground formats during text layouting phase.
M +5 -22 src/render/katerenderer.cpp
https://invent.kde.org/frameworks/ktexteditor/-/commit/0cb99379131b6fb2b80637e6e86da428a630f3bf
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