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[cross-project-issues-dev] Papyrus: CSS Support for GMF

Hi all,



In Papyrus, we’ve implemented a component to support CSS Stylesheets for GMF-based diagrams. This component has been introduced in Papyrus/Juno, and we now consider it stable.


It has never been included in the Simultaneous Release because of one specific issue: this component overrides the GMF Notation metamodel implementation (Though the org.eclipse.emf.ecore.factory_override extension point). Because the EMF Factory is a singleton, there is a risk of introducing conflicts, if more than one component uses this extension point for the same metamodel. The CSSNotation elements have been designed to delegate to the standard Notation implementation when the CSS support is not installed on the resource set, which means that this component, in theory, doesn’t introduce any change in the behavior of non-Papyrus diagrams.


Now, we’d like to distribute this component as part of the Papyrus project for Luna, directly in the Release Train, whereas it was only proposed as an optional, extra component in Juno and Kepler. My idea is that we might introduce this feature in M4, and remove it before M6 if major issues (incompatibilities) are introduced.


Is there any objection, or suggestion? (Especially for GMF-based projects)





Camille Letavernier


Papyrus :


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