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[solved] Connection Label from Reference Attribute [message #726054]

Fri, 16 September 2011 13:26

Jonatan Antoni

Messages: 18
Registered: December 2010
Location: Frankfurt/Main

Junior Member

Hello,

I have build up a GMF editor for the XText FowlerDSL (Statemachine) example.
Up to now it looks quiet good.

The ecore model diagram is

http://www.familie-antoni.de/~jonatan/Statemachine.png

and a simple statemachine modeled with the GMF editor looks like

http://www.familie-antoni.de/~jonatan/example.png

Now I would like to display the Events name as connection label for the Transitions.

Therefore I added a Label and a Child Access to the TransitionFigure, like

- Figure Descriptor TransitionFigure
  - Polyline Connection TransitionFigureConnection
    - Label TransitionLabel
  - Child Access getFigureTransitionLabel

Next I tried to add a FeatureLabelMapping to the Transitions Link Mapping, like

- Link Mapping <Transition{Transition.state:State}/Transition>
  - Feature Label Mapping false
    * Features to display: ???
    * Features to edit: Event.name:EString

I can select the Events name as a "feature to edit". But the wizzard dialog for "Features to display" is empty.

Can somebody tell me whats going wrong here?

Thanks,
Jonatan

[Updated on: Mon, 19 September 2011 09:40]

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Re: Connection Label from Reference Attribute [message #726645 is a reply to message #726054]

Mon, 19 September 2011 06:34

Ralph Gerbig

Messages: 702
Registered: November 2009

Senior Member

Hi,

try using a ExpressionLabel instead of a FeatureLabelMapping. You could have a expression like eReferenceName.featureToDisplay.

Ralph

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Re: Connection Label from Reference Attribute [message #726689 is a reply to message #726645]

Mon, 19 September 2011 09:39

Jonatan Antoni

Messages: 18
Registered: December 2010
Location: Frankfurt/Main

Junior Member

Hello Ralph,

thank you for that advice, it works right away.

I had to implement the lable provider functions my self, because I did not figure out how to use those expressions within the mapping model.

Regards,
Jonatan

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