Re: Pixel-based display functions

[Eli Zaretskii]

> From: Lars Ingebrigtsen <address@hidden>
> Cc: address@hidden, address@hidden
> Date: Wed, 11 Feb 2015 16:31:11 +1100
> 
> Eli Zaretskii <address@hidden> writes:
> 
> > Well, you insert those lines into the buffer yourself, right?  Can you
> > find the longest line while you are at it, and insert only it?
> > AFAICS, that's the only way of making window-text-pixel-size do its
> > job faster: by making the region FROM..TO it needs to traverse
> > smaller.
> 
> Well, I don't know how long the line is (in pixels) in the first
> place.  Only calling `window-text-pixel-size' will tell me, right?

No, I meant the longest in characters.

> It's not an unusual case, but I don't think there would be much of a
> speed up in total, though.

It depends on how many lines at a time, on the average, you are
inserting in a temp buffer.