[xmonad] proposal: add extra screen parameter to runLayout

[Don Stewart]

lee:
> On Wed, Mar 26, 2008 at 11:12:24AM -0400, Mathias Stearn wrote:
> > I could see this being useful if you have two monitors with one
> > rotated to tall mode (looks like a sideways T). It would make sense
> > for a given workspace to use a different layout if on the tall
> > monitor. Mayhaps a mirrorIfOnScreen n l layout modifyer.
> 
> I think this would also be useful when used in conjunction with Reflect. A
> while back I thought that it would be nice to reflect all layouts on my left
> screen. That way I could always keep the master window nearer to the center
> of my desktop.
> 
> Is this possible now with the current set of Layouts?
> 

That's a great use case I've thought would be nice, too.