Menus: unnecessary repaints?!

[Waldo Bastian]

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On Thursday 05 June 2003 14:46, Karl Vogel wrote:
> > When I am using KDE via a slow internet connection, I can see lots of
> > things that look like more work is done than is needed to draw stuff.
> > I would recommend all kde-optimize people to try this yourself.
>
> Problem is that people don't have low bandwidth in mind when designing. (ie
> good example here is how Konsole works.. when the screen scrolls, the
> entire text is repainted, instead of just doing a scroll + repaint of the
> new line -- this might make the implementation more abstract, but it's a
> killer on low bandwidth connections)

It's only a problem if you scroll a few lines. If you scroll a lot, the whole 
screen needs to be refreshed anyways.

It shouldn't be that hard to add some scroll detection and do a scroll+repaint 
when it has scrolled only a little. Not sure if you will run into problems 
with invalid areas that need repainting before scrolling though.

Cheers,
Waldo
- -- 
bastian at kde.org -=|[ SuSE, The Linux Desktop Experts ]|=- bastian at suse.com
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