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[Eugenia] Subdiagrams [message #582431] Fri, 30 October 2009 12:51
Christoph Wienands is currently offline Christoph WienandsFriend
Messages: 55
Registered: July 2009
Hello all,

I just started with Eugenia and I am really impressed how quickly I was able to create a DSL, after having spent days before with "raw" GMF.

Now I was wondering whether it was possible to do subdiagrams with Eugenia. For example, I'm thinking about state machines where you can expand a composite state into a second diagram with its details. Or think of a network topology with routers, connections, etc. in a top-level diagram, and routing tables, NAT settings in subdiagrams for each router.

I once was able to get subdiagrams of the same type as the parent diagram working (it was a couple of settings in the gmfmap), but never got subdiagrams of different types working. It required a really ugly workaround with two sets of gmfmap, gmftool, and gmfgen.
If you ever got the different subdiagram type working (I didn't), you could never use the generators again if you made changes to your DSL :( So I figured, Eugenia would be predestined for subdiagram support because all the GMF artifacts are completely regenerated after changes to the DSL.

I didn't see any annotations in the Eugenia reference that would support that feature. Has anybody done that before (maybe with a couple of those generated code overrides, forgot the name)? Or is this maybe a planned feature?

Thanks a lot, Christoph
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