Tear-off menus

[John R Sheets <dusk smsi-roman com>]

Evan,

Since you're right in the middle of coding all these experimental
new features for gEdit, you'd probably be a good person to ask
this.

How difficult would it be, code-wise, to implement the tear-off
menu items that Ben brought up in the New Menus for Windows
thread?  Essentially, the tear-off menu would have to be
persistent (i.e. sticky) and have some sort of close button on
its immediate person.

Seems to me, this would require creating a free-floating window
to house the sub-menu (and the sub-menu controls), then getting a
pointer to the submenu and copying it into the floating window. 
Would you have to duplicate (and later remove) all the signal
connections for the duplicate menu...or would we even need an
explicit copy?

We would also want to allow for changing menu orientation, i.e.
horizontal vs. vertical.

If this is not a big deal to implement, I think we should include
this in the style guide.  Or even if it is a big deal, really.

John