Re: Pixel-based display functions

[Lars Ingebrigtsen]

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?

There's once special case I do know the width of the <td> element, and
that's when the only element in the <td> is another <table>.  I already
know the width of that table, to I wouldn't really have to recompute the
width again.

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

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