Restrict queues by workflow state

I think the title says it all...how do I accomplish this?

I've been searching around but didn't find anything....hopefully someone can point me in the right direction.

Ideally, on the Add nodequeue page, different workflow states can be shown and I can tell the nodequeue to only accept nodes that have a specified workflow state (which I can specify right on that page).

Ofcourse the "add nodequeue page" will have to know which workflow states are applied to the node types that I select......maybe as you select a nodetype, the allowed workflow states dynamically show up?