[e4-dev] More Model Question and Proposals

[Tom Schindl <tom.schindl@xxxxxxxxxxxxxxx>]

Hi,

While working on my Model Editor I'm going through the model and there
are question poping up. I'll try to summerize the current question and
doubts I have:

* Model-Contributions:
----------------------
Currently I found two problems where the current model is probably
having problems with because it expects the EMF-Object-Instance
available at design time.

The 2 areas are:
* Contributed Handlers who want to use commands
* Contributed Perspectives you want to use existing PartStacks, Parts,
  ...

but probably there are more. I guess we need to find a common way to
deal with this.

* WindowTrim as a PSCElement:
-----------------------------
WindowTrim is an PSCElement so that it can get part of the
Window#children-List but this also makes it useable at places the model
should protect it's usage. I think Window should have an
windowTrims-Attribute to store the trim instead of holding them inside
the children-List.

Another probably interesting question is whether one could have multiple
WindowTrim(s) with the same SideValue else one could store them in 4
trim-Attributes (left,right,top,bottom) but this is less important than
getting the trim out of the children-List.

* BindingContainer:
-------------------
I think the nameing things like HandlerContainer/Handler is better than
the BindingContainer/KeyBinding and suggest to do a minor renaming to
KeyBindingContainer.

* KeySequence:
--------------
Why is KeySequence an EClass on itsown when only KeyBinding uses it as
its superclass. Is there a reason for this, do we expect other Types to
inherit from there, else we should probably merge the attribute from
there into KeyBinding and remove the KeySequence-Type.

Tom

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