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Customizing the outline [message #912290]

Thu, 13 September 2012 09:19

Roberto Jimenez

Messages: 17
Registered: March 2012

Junior Member

How can a customize the outline??

I need it to get something like this with this objects:

if
AbstractElements
else if
AbstractElements

Object:

IfExp:
block=CondBlock ('else' blocks+=CondBlock)* ('else' defaultBlock=Block)?;

CondBlock:
name='if' cond=TerminalBoolExpression action=Block;

Block:
{Block}
name='{'
sta+=AbstractElement*
'}';

But what I get something like this:

if
unnamed
AbstractElement
unnamed

Someone can help me??

Thanks a lot

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Re: Customizing the outline [message #912378 is a reply to message #912290]

Thu, 13 September 2012 13:02

Jens Kuenzer

Messages: 29
Registered: October 2009

Junior Member

I would not use the special member "name" for this.
It might be simpler to just customize the LabelProvider class.

For example to change the label of a conditional block you can try:

    String text(CondBlock ele) {
        return "If";
      }

I usually override the doGetText to get some more verbose defaults during development:

    @Override
    protected Object doGetText(Object element) {
            Object text = super.doGetText(element);
            String prefix = "";
            if(element instanceof EObject) {
                EObject e = (EObject) element;
                if(e.eContainingFeature()!=null) {
                    prefix = prefix + e.eContainingFeature().getName() + "="; 
                }
            }
            prefix = prefix + element.getClass().getSimpleName().replaceFirst("Impl$", "");
            if(text != null && text instanceof String) {
                return prefix +":"+text;
            } else {
                return prefix;
            }
    }

This is just meant as a starting point.

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Re: Customizing the outline [message #912823 is a reply to message #912378]

Fri, 14 September 2012 08:54

Tu Do

Messages: 21
Registered: August 2012

Junior Member

Hi Jens,

Where should I override doGetText() ? I tried to override in DefaultOutlineTreeProvider, but it does not work.

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Re: Customizing the outline [message #912827 is a reply to message #912823]

Fri, 14 September 2012 09:03

Christian Dietrich

Messages: 13876
Registered: July 2009

Senior Member

Hi,

as said before the labels are ususally done in the Labelprovider - but not by overriding doGetText

String text(CondBlock ele) {
        return "If";
      }

you may find the dogettext in DefaultEObjectLabelProvider (superclass of MydslLabelProvider)

~Christian

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

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Re: Customizing the outline [message #912845 is a reply to message #912827]

Fri, 14 September 2012 09:28

Jens Kuenzer

Messages: 29
Registered: October 2009

Junior Member

Maybe it was a little misleading to suggest the override of doGetText. It is not required in this case.
I meant this only as developing aid. I used this in several projects for a quick check of the results. I know there are other ways doing that, too.

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Re: Customizing the outline [message #920840 is a reply to message #912845]

Sun, 23 September 2012 14:07

Roberto Jimenez

Messages: 17
Registered: March 2012

Junior Member

The text() method works, but I want to delete some nodes of the outline, but adding the children of this node to his parent.

I want just this:

if
element
if
element

But the blocks and the IfExp appears in my outline.

Any idea.

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Re: Customizing the outline [message #920855 is a reply to message #920840]

Sun, 23 September 2012 14:22

Christian Dietrich

Messages: 13876
Registered: July 2009

Senior Member

Hi there are a lot of topics on the outline already the . Have a look
at the YourDslOutlineTreeProvider and adapt the code.

--
Need training, onsite consulting or any other kind of help for Xtext?
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Need professional support for Xtext, Xpand, EMF?
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