QTextEdit, html performance

mrdebug

Hi. I'm using the QTextEdit to show text as log, in html format.
The performance is very slow. Is there a way to increase it? I need to append lines using some colors and some text in bold.

mandruk1331

For highlighting you can use this as an example:
http://doc.qt.io/qt-5/qtwidgets-richtext-syntaxhighlighter-example.html

mrjj

Hi
How many log lines are we talking about ?
The layout engine is not really optimized for a log viewer widget use case
as line count is often massive.

If the only markup you need it bold and color - have you considered writing a custom control
that understand those 2 tags and do the drawing using painter.

You could also reuse existing viewers and add "bold" to it
https://github.com/nickbnf/glogg