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Re: [emf-dev] Allowing custom property editors


I also opened an issue [1] in bugzilla.



On 06/18/2014 04:59 PM, Jens Reimann wrote:
> Hi,
> I just stumbled over the issue again that I would like to have a custom
> property editor for the EMF generated editors. However this seems to be
> a bigger task. Either one has to replace a lot of generated classes or
> use some other toolset like EEF.
> I think there is way to do this with EMF.Edit and started performing the
> changes in our own project, Eclipse SCADA. However I would like to see
> the changes become part of EMF, if possible.
> As far as I have figured it out, the basic problem is, that
> AdapterFactoryContentProvider creates the actual IPropertySource
> instance, which is derived from a IItemPropertyDescriptor. This process
> takes place in PropertyDescriptor.createPropertyEditor(...). However
> there seems to be no extensible way to intercept this process and inject
> a custom property editor.
> I started with a small patch in gerrit [1] which basically allows other
> adapters to join in when the conversion from "Object" to
> "IPropertySource" takes place. This would be a first step to allow
> others to inject custom property editors, if needed. Otherwise the
> default process takes place.
> This could also be done in a custom implementation on a per project
> (editor) base. However if you have a bigger set or models and extension
> models. This would mean that all editors have to use this extended
> version of AdapterFactoryContentProvider. If one editor implementation
> still uses the default implementation, then the whole process would be
> broken for a extending model.
> Please let me know what you think.
> Jens Reimann
> [1]
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> emf-dev mailing list
> emf-dev@xxxxxxxxxxx

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