Re: The new tooltips API in 5 minutes [Was: Re: Whats coming in GTK+ 2.12, continued]

[Tim Janik <timj gtk org>]

On Sat, 16 Jun 2007, Damon Chaplin wrote:

> On Fri, 2007-06-15 at 11:25 +0200, Tim Janik wrote:
> > please read Kris' description again.
> > if you set ::tooltip-markup, ::has-tooltip is set automatically, and
> > you don't need to worry about it. this is *not* the case if you connect to
> > ::query-tooltip and possibly return TRUE. there is no way for gtk to tell
> > this kind of setup and querying every widget would be excessively
> > expensive, so we need the user to set ::has-tooltip here.
>
> We discussed it before. I said that query-tooltip should really only be
> emitted just before a tooltip is shown, and you agreed. If that is done
> the efficiency problem disappears, doesn't it?

i'm not sure it does (on every machine). worst case, there would be
widget_tree_height signal emissions for each pixel the mouse pointer
moves or at least 20 times a second if we reduce querying to 50ms
intervalls.

> Damon

---
ciaoTJ