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List:       kfm-devel
Subject:    Re: Text Selection Speed
From:       Dirk Mueller <mueller () kde ! org>
Date:       2002-06-23 22:51:36
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On Son, 23 Jun 2002, Koos Vriezen wrote:


> On Sun, 23 Jun 2002, Dirk Mueller wrote:
> 
> > On Son, 23 Jun 2002, Koos Vriezen wrote:
> >
> > > movies. The whole page is repainted all the time when repainting is
> > > delayed to 40 ms (which speed up text selection).
> > > BTW what do you think of not re-rescheduling repainting of rectangles?
> >
> > Sorry ?
> QUpperLeftRect.unite(QLowerRightRect)

Well, collapsing several rectangular repaint requests certainly makes sense, 
thats why we introduced the "scheduling". 

> > But nodeAtPoint is virtual, and is reimplmented in RenderFlow.
> How common is that to have specialObjects? 

Very. There is basically no non-trivial page without dozens of them.  

> Don't use the cache in that
> case or make it a separate function that could be called first.

Possible. but you have to check them in the right order.. just checking the 
specialobjects alone isn't enough. 


Dirk
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