[openbox] Direction focus algorithm

[Dana Jansens]

On 8/13/07, Tore Anderson <tore at linpro.no> wrote:
>    The reason for using centres is to be able to go between window even
>   though they're slightly overlapping.  For instance, using the edges
>   would make it impossible to go east/west between two windows arranged
>   like this:
>
>           +-----+
>      +-----+    |
>      |     |    |
>      |     |----+
>      +-----+

You could use the left edge, and look for only other left edges when
going right, and vice versa.  I'm not sure if that would work well or
have other problems to address, and diagonal would be another dilemma,
but maybe you could just use two edges instead of one.  Just thoughts.