Text Selection Speed

[Dirk Mueller]

On Son, 23 Jun 2002, Koos Vriezen wrote:

> > - what you hacked together with QValueList<QRect> is handled MUCH more
> >   efficiently in QRegion. Please use that instead.
> Didn't know that. Why isn't it used then?

Because repainting a boundary rect is probably faster than repainting a 
complex region. 

> Already had
>   if (d->cachedInnerNode &&
>       d->cachedInnerNode->innerNode()->renderer()->nodeAtPoint(......)) {
>          if (d->cachedInnerNode->URLElement() && !renderInfo.URLElement())
>             renderInfo.setURLElement(d->cachedInnerNode->URLElement());
>          *d->cachedInnerNode = renderInfo;
>          isInside = true;
>   } else
> in my tree, which always updates the cache. 

No, not quite. there might be specialobjects "up" in the tree that are 
"inside".  

> Also an invalidation
> of the cache in 'DocumentImpl::close' was necessary.

euhm?


Dirk