Re: [e4-dev] More Model Question and Proposals

[Tom Schindl <tom.schindl@xxxxxxxxxxxxxxx>]

Am 11.03.10 15:40, schrieb Eric Moffatt:
> 
> Missed this one earlier...the reason that MWindowTrim is an MPSCElement
> is to allow for the eventual use of Editor Area based Toolbars
> (something that the eclipse community has wanted for a long time) but I
> agree that it may be too loose.

... but well it is named WindowTrim and not EditorTrim.

I think that we need to make it explicit that ElementContainer#children
are somehow seen as Part-Child-Relations and WindowTrim, EditorTrim are
special stuff which gets part of special attributes.

So if I look at the model and the resulting UI I would expect to see the
stuff in ElementContainer#children show up in the same order they are in
the children-container and if window-trims are in between my parts - our
current model would allow to have a list of modeled elements like this
below a Window:

Window
 + Part
 + PartStack
 + WindowTrim (bottom)
 + Part
 + WindowTrim (top)

Which is a bit unintuive not?

> 
> My concern is that if we over-restrict the model we prevent clients from
> using it in new and wonderful ways. We do have to avoid being able to
> construct nonsense though.

I'm all for being as less restrictive  as possible but we need to have a
structure. People can experiment with our model because they can extend
and if they want to add a EditorTrim-Type and an
EditorTrimPartStack-Type they can.

> 
> On a related note one of the containment elements that's is currently
> missing is that there is no way to add a stack to a stack, do we need a
> StackPart ?
> 

You mean PartStackContainer? The child of such container has to
something of type UILabel!

Tom

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