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Embeded single line editor [message #1746347]

Thu, 27 October 2016 11:45

Alois Zoitl

Messages: 1457
Registered: January 2014

Senior Member

Hi,

We are already rather successfully using the embedded editor in our application. For a new use case it would be great to have a single line text field with an Xtext grammar.

In principle it is working however the look and feal is rather awkward. The main issue is that the withParent method is creating the sourceviewar with scrollbars enabled per default. The respective code is:

final XtextSourceViewer viewer = this.sourceViewerFactory.createSourceViewer(
					parent, 
					annotationRuler, 
					null, // overviewRuler
					false, // showAnnotationOverview 
					SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);

For my use-case it would be better if I could set the style to SWT.BORDER | SWT.SINGLE.

Therefore my question would be can I somehow overwrite or provide my own seourceViewerFactory which would take car of this?

Or is there an other option how to better handle this?

Thanks in advance,
Alois

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Re: Embeded single line editor [message #1746348 is a reply to message #1746347]

Thu, 27 October 2016 11:50

Christian Dietrich

Messages: 14491
Registered: July 2009

Senior Member

you can simply add a binding for the factory

def Class<?extends XtextSourceViewer.Factory> bindXtextSourceViewer$Factory() {
return MyXSVF
}

or you could subclass the EmbeddedEditorFactory

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Embeded single line editor [message #1746349 is a reply to message #1746348]

Thu, 27 October 2016 11:58

Alois Zoitl

Messages: 1457
Registered: January 2014

Senior Member

Will there be always the same factory injected or is the sourceviewer factory depending on my language?

I'm not so fit with dependency injection, Therefore where would I put our code?

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Re: Embeded single line editor [message #1746350 is a reply to message #1746349]

Thu, 27 October 2016 12:03

Christian Dietrich

Messages: 14491
Registered: July 2009

Senior Member

It is per Lang as you create the embedded editor factory with the injector of your lang

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Embeded single line editor [message #1746352 is a reply to message #1746350]

Thu, 27 October 2016 12:31

Alois Zoitl

Messages: 1457
Registered: January 2014

Senior Member

Jep I got this. I meant the XTextSourceViewerFactory. But it looks like that the default implementation gets injected. so I could inherit from this and provide my own. SO my last dumb question would be how I do the binding. I played a bit with xxxUIModule class but was not very lucky. Could you be so kind and point me to some docs or to give me a hint for the names to be used there?

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Re: Embeded single line editor [message #1746353 is a reply to message #1746352]

Thu, 27 October 2016 12:36

Christian Dietrich

Messages: 14491
Registered: July 2009

Senior Member

The code above should do the trick

Besides this there is the section on dependen injection in the docs
https://eclipse.org/Xtext/documentation/302_configuration.html#dependency-injection

And the one on xtend on xtend-Lang.org

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Embeded single line editor [message #1746357 is a reply to message #1746353]

Thu, 27 October 2016 13:07

Alois Zoitl

Messages: 1457
Registered: January 2014

Senior Member

Thanks for the hints. Reading helps Wink

Works now as a charm and opens up completely new posibilities for our application (e.g., DSLs in table or tree view fields or graphical editors. Very cool.

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Re: Embeded single line editor [message #1746440 is a reply to message #1746357]

Fri, 28 October 2016 17:55

Luis De Bello

Messages: 95
Registered: January 2015

Member

Hi guys,

We are trying to create a form editor aprox 10 textfields and each of them should be an embedded xtext editor for the same language, so I would like to know if you have idea or if you have tested something similar in order to check if the lazy initialisation for each editor could affect the performance.

Regards,
Luis

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