[PULL] prep work for screen crossing fixes

[Peter Hutterer]

On Mon, Oct 03, 2011 at 10:02:28PM -0700, Jamey Sharp wrote:
> On Tue, Oct 04, 2011 at 02:15:53PM +1000, Peter Hutterer wrote:
> > On Mon, Oct 03, 2011 at 09:02:19PM -0700, Keith Packard wrote:
> > > On Tue, 4 Oct 2011 13:26:35 +1000, Peter Hutterer <peter.hutterer at who-t.net> wrote:
> > > Non-text part: multipart/signed
> > > 
> > > >       Store desktop dimensions in screenInfo.
> > > 
> > > Do we need the minimum x/y of the desktop too?
> > 
> > is it ever other than 0/0?
> 
> Sure, that's legal (though crazy). Besides the xorg.conf ServerLayout
> syntax for positioning a Screen "RightOf", "Below", etc, you can also
> set the screen's absolute position.

right, that's for a single screen. but can the desktop origin ever be
non-zero? Can you have layout where the first screen goes from say -1024..0
and the second from 0..1204?

> On another note: When Xinerama is active, it sticks the root window
> dimensions in the ConnectionInfo global structure. Does that make this
> any easier, or otherwise is there an opportunity for sharing code there?

possibly, I'll try to find out

Cheers,
  Peter