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* lru-window, window--try-to-split-window, split-width-threshold
@ 2008-08-22 16:04 Drew Adams
  2008-08-22 17:02 ` martin rudalics
  0 siblings, 1 reply; 5+ messages in thread
From: Drew Adams @ 2008-08-22 16:04 UTC (permalink / raw)
  To: 'Emacs Devel'

`split-width-threshold' was apparently introduced recently. Depending on its
value, the lru-window can now get split horizontally to display *Completions*
during minibuffer input.

I have code that changes the display of completions (columns, spacing etc.),
depending on the width *Completions* will have when it is displayed. Before it
is displayed, I obtain (window-width (get-lru-window)) and use that as the
assumed window width.

This is no longer adequate, however, because the effective width might be, say,
half of that if the lru window gets split horizontally to display *Completions*.
And I can't simply use half of that width systematically, because there might be
no horizontal split, depending on `split-width-threshold'. I don't know a way to
know ahead of time whether a horizontal split will occur (without reproducing
all of the code/logic of `window--try-to-split-window' - checking for dedicated
windows etc.).

I tried this: (window--try-to-split-window (get-lru-window)), figuring that I
might as  well split the lru-window myself, if it is going to be split, so that
I can get its new width and use that.

The problem with this is that once the split occurs the window that was split is
apparently no longer the lru window, so *Completions* gets displayed by
splitting yet another window. If I have two full-frame-width windows (frame
split vertically), the effect is that both windows get split when *Completions*
is displayed (and then unsplit when *Completions* is finished).

Any suggestions? What am I missing? Is there some way, say, after splitting the
lru window myself, that I can make it (or the new one) the lru again, so that
`display-buffer' will use it for *Completions*? IOW, is there a way to *set* the
lru window? Any help is welcome.






^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2008-08-27 21:51 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-08-22 16:04 lru-window, window--try-to-split-window, split-width-threshold Drew Adams
2008-08-22 17:02 ` martin rudalics
2008-08-22 23:45   ` Drew Adams
2008-08-27 21:14     ` Stefan Monnier
2008-08-27 21:51       ` Drew Adams

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