Re: [Graymail] How to implement editor-fold in netbeans editor

There are many ways to skin a cat. With code folding, I prefer the approach
Geertjan used in the python module, as I find it easier to understand.
First, you make a structure scanner:

https://github.com/GeertjanWielenga/Python4NetBeans/blob/master/PythonEditor/src/org/netbeans/modules/python/editor/PythonLanguage.java

https://github.com/GeertjanWielenga/Python4NetBeans/blob/master/PythonEditor/src/org/netbeans/modules/python/editor/PythonStructureScanner.java

Then, you implement your structure items:

https://github.com/GeertjanWielenga/Python4NetBeans/blob/master/PythonEditor/src/org/netbeans/modules/python/editor/PythonStructureItem.java

The benefit is that you get code folding AND navigator support, plus a
couple other minor UI features here and there, all of which integrate
really nicely. I've done it the fold manager based approach as well, but to
my eyes nowadays, I tend to prefer this one. Here's how we do it on Quorum
4 nowadays (which isn't out yet), for good or ill:

https://bitbucket.org/stefika/quorum-language/src/4c258a2018e86dced227c804537bf1415652965d/IDE/Sodbeans/Quorum/src/org/quorum/language/QuorumStructureScanner.java?at=hints&fileviewer=file-view-default

Then you need a fold type provider:

https://bitbucket.org/stefika/quorum-language/src/4c258a2018e86dced227c804537bf1415652965d/IDE/Sodbeans/Quorum/src/org/quorum/language/QuorumFoldTypeProvider.java?at=hints&fileviewer=file-view-default

Make sure you don't miss that annotation.

@MimeRegistration(mimeType = "text/x-quorum", service =
FoldTypeProvider.class, position = 1000)


Anyway, like I said, there are lots of ways to do this. Just thought I
would provide a different approach, if you weren't aware of it.

Stefik

On Fri, Mar 11, 2016 at 2:58 PM, Svata Dedic <[email protected]>
wrote:

> You don't need to implement the FoldManager yourself; there's a stock
> implementation which recognizes <editor-fold> pseudo-tags in comment
> tokens for you.
>
> You need to register for your MIME type
> (Editors/text/x-whatever/FoldManager) something like:
>
>                     <file name="CustomFoldManager.instance">
>                         <attr name="instanceOf"
> stringvalue="org.netbeans.spi.editor.fold.FoldManagerFactory"/>
>                         <attr name="instanceCreate"
>
> methodvalue="org.netbeans.api.editor.fold.FoldingSupport.userFoldManagerFactory"/>
>                     </file>
>
> If primaryCategory() of comment token IDs  produced by your lexer start
> with "comment", you're set up. Otherwise you need to pass "tokenId"
> attribute to the instance with your comment's primaryCategory prefix.
>
> -S.
>
> Dne 10.3.2016 v 17:20 Volodymyr napsal(a):
> > Thanks for your answer.
> >
> > I have the FoldManager implemented, but cannot figure out this exact
> > folding. I suppose I have to implement two new tokens two match the
> > opening and closing of <editor-fold>. But which type FoldType it has to
> > be, USER? It looks really great in Java Editor, I want it to look the
> > same)).
> >
> > Thanks.
> >
> > 10 березня 2016, 16:29:19, від "Ingleby, Graeme"
> > <[email protected] <mailto:[email protected]>>:
> >
> >     There is a section in this tutorial that shows how to create folds
> >     for comments, maybe this will help:
> >
> >
> >
> >
> https://platform.netbeans.org/tutorials/nbm-javacc-parser.html#fold-feature
> >
> >
> >
> >
> >
> >     *From:*Volodymyr [mailto:[email protected]]
> >     *Sent:* Thursday, March 10, 2016 8:20 AM
> >     *To:* NetBeans support
> >     *Subject:* [Graymail] [platform-dev] How to implement editor-fold in
> >     netbeans editor
> >
> >
> >
> >     Hello,
> >
> >     There is a great functionality in NetBeans, editor-fold, but I
> >     cannot figure out how to implement its support for my custom
> >     language. Does anybody know?
> >
> >     Thanks.
> >
> >     // <editor-fold defaultstate="collapsed" desc=" My methods ">
> >     // </editor-fold>
> >
> >     Regards,
> >     Volodymyr.
> >
>
>