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Re: [ide-dev] Widget and Utils contribution



What you'd need to do is propose a project to contain this work and build a community around it. Note that there are already several projects/frameworks at Eclipse that provide similar facilities... Sapphire [1], EEF [2] and Scout [3].


PDE editor was written well before any of these frameworks existed. You may find that re-basing the new PDT editor on one of the existing frameworks to be cheaper in the long term than creating and maintaining a new framework.




- Konstantin






From: Thomas Gossmann
Sent: Saturday, October 24, 2015 2:55 AM
To: ide-dev@xxxxxxxxxxx
Subject: [ide-dev] Widget and Utils contribution



Hey guys,


I'm the developer of the composer plugin (which is a php package

manager) and we are about to migrate this plugin into PDT. We have some

dependencies to solve and here is one which has a nice contribution to

eclipse as well. I hope I am on the correct mailing list here, anyway

please pass me on.


1) History:

The main part of the composer plugin is the composer editor, which is

pretty similar to the PDE editor. In fact, I even took code from there.

I realized this code can be used for multiple purposes, editors and

dialogs as well, because it was already very generalized. I extracted it

into its own plugin, which I put on github:



2) Packages:

The repo consists a little more than just UI stuff. So let me explain a

little which packages to look at:

- si.gos.eclipse.actions

- si.gos.eclipse.editor

- si.gos.eclipse.forms


- si.gos.eclipse.widgets.utils


basicaly they all work together.



3) Features:


- The most interessting is the parts package I'd say. There you'll find

typical parts that you see throughout the whole eclipse environment.

Most typically, this is a list/table/tree on the left, with action

buttons on the right. There are just multiple parts present with all

their configuration classes (Taken from PDE).


- Forms: Offer many widgets to build up forms (e.g. in an editor) very

easily (Taken from PDE).


- Editor: Offer customized sections as widgets that are ready to use in

a (multipage) editor (Taken from PDE).


- Widget Utils: Especially the parts might occur in an editor

environment or most often appear in dialogs. Depending on which

situation, they need to be initiated differently, that's where the

WidgetFactory comes into play, which is a facade pattern to adopt to

these two environments and are used under the hood of the parts above.


- Widget Helper: An easy way to help layouting composites in SWT (Taken

from PDE).



4) The Plan:

We want to use this for PDT and to migrate the composer plugin, yet I

think a lot of people will benefit from that and the best would be to

contribute this to a place somewhere in eclipse where it can reach its



=> That's my question to you guys:

I'd like to contribute this back to eclipse. What do you think?



In case you agree on this, there is some stuff to do (which you might be

asking for anyway):

For now and for historical reasons, everything is e3 based, which can be

done way more easier with e4 and DI. Prior to contribution to eclipse,

I'd lift the code up onto e4 API.





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