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Re: [e4-dev] Does that mean SWT only exist in desktop ?
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Hi,
!! Please note this is my personal opinion and might not reflect the
opinion of the rest of the e4-Team !!
I agree on the one hand that it would be nice but on the other hand
there are no resources available - so it won't happen.
I don't want to kill this discussion but without an investment of time
(speak money) I don't think we'll see an SWT-Port for Browsers any time
soon.
As mentionned in my first reply I have extensible knowledge in this area
so I'd certainly able to help you getting started with this but not in
my spare time (because the amount of work this would be senseless any
ways) because such a project/port needs fulltime workers.
Tom
Am 05.02.10 10:04, schrieb Ivan Ooi:
> Hi all,
>
> Thanks for the reply but how nice if there's a SWT compatible for
> Mobile of cause we may not have full
> SWT features but I think it still ok.
>
> I believe if e4 can support mobile devices especially iPhone and iPad,
> I believe that will get more attention
> from public. even though we can't have full features but at least it
> open a choices for SWT developers.
> like Android, i believe a lot of peoples know that Android are not
> JavaME compatible but at least we can
> write our apps using Java, right ? :-D
>
> Hope to hear from you all. You all awsome! :-)
>
> Best Regards,
> Ivan
>
> On Thu, Jan 28, 2010 at 2:16 PM, Tom Schindl
> <tom.schindl@xxxxxxxxxxxxxxx <mailto:tom.schindl@xxxxxxxxxxxxxxx>> wrote:
>
> Hi,
>
> Doing a full SWT-Port for the Web is a very hard task because some of
> the concepts in SWT can't be emulated easily on the browser:
>
> * Event-Loop: Todays browser though HTML5 brings webworkers are still
> single threaded and so you can't e.g open blocking dialogs like you
> do in SWT => SWT would have to introduce API with callbacks so
> that one could write single-source code.
>
> An example might make this clear:
>
> Today:
> ----------8<----------
> MessageBox msg = new MessageBox(parent,SWT.ICON_ERROR);
> msg.setText("I'm the message");
> msg.open(); // Blocking call
> System.out.println("I'm running after dialog closed");
> ----------8<----------
>
> In Future:
> ----------8<----------
> MessageBox msg = new MessageBox(parent,SWT.ICON_ERROR);
> msg.setText("I'm the message");
> msg.open(new Runnable() {
> public void run() {
> System.out.println("I'm running after dialog closed");
> }
> });
>
> ----------8<----------
>
> * There's no native GC in web-browsers and so stuff like tables/trees
> with owner draw is not possible.
>
> * ...
>
> All those stuff lead me to believe that a SWT-Port is not feasable
> (because a full one is not possible with todays SWT/JFace-API) and I
> invested time to inventing an API which is compatible with Desktop and
> Browser technologies and the result was UFaceKit whose API is designed
> with Browser and Desktop-Support in mind:
>
> * All API is none blocking and provides callbacks
> * API free from platform natives like gc, fonts, images, ... but
> instead usage of declartive syntax
>
> E.g. Example from above in UFaceKit:
> ----------8<----------
> desktop.showErrorDialog(
> parent,
> "Error",
> "Error Message",
> new Status(IStatus.ERROR,e.getMessage()),
> new DataRunnable<Boolean>() {
> public void run( Boolean data ) {
> }
> }
> );
>
> ----------8<----------
>
> Currently there's no finished port for GWT available but the
> underpinning infrastructure for it is available:
> * Eclipse Databinding of "3.5.2" (ready) [1]
> * A "native" widget toolkit named QxWT [7] (ready) [2,3,4,5]
> * Viewer implementations for structured QxWT controls (in development)
> [1]
> * ...
>
> UFaceKit is an Eclipse Project but I haven't brought the GWT [8] stuff
> to Eclipse yet because when I started I wasn't sure where all this is
> going to.
>
> Anyways to get a first impression on UFaceKit we have "consumeable"
> builds [6] for our SWT-Implementation (Disclaimer: Because of whatever
> reason p2 believes that it has version mismatches but setting up a
> target platform by hand seems to be work).
>
> Because my work in those areas I've indepth knowledge about them but
> because of time constraints I can't help with getting such a port of SWT
> going (beside questioning whether it makes sense with the current
> SWT-API).
>
> Tom
>
> [1]http://tomsondev.bestsolution.at/
> [2]http://tomsondev.bestsolution.at/2010/01/05/background-to-qxwt-and-gwt-generator-integration/
> [3]http://tomsondev.bestsolution.at/2010/01/10/qxwt-explained-part-2/
> [4]http://tomsondev.bestsolution.at/2010/01/12/qxwt-explained-part-3/
> [5]http://tomsondev.bestsolution.at/2010/01/15/qxwt-explained-part-4/
> [6]https://build.eclipse.org/hudson/job/cbi-UFaceKit-nightly/
> [7]http://www.ufacekit.org/qxwt/demos/QxDemo-dev/QxDemo.html
> [8]http://www.ufacekit.org/
>
>
> Am 28.01.10 02:31, schrieb Ivan Ooi:
> > Hi all,
> >
> > Sorry, I understand that SWT for Java will support css but is there
> > any chances that " SWT for e4 "
> > will allow SWT Java users used back whatever they know or existing
> code
> > with some changes,
> > turn their applications into web enabled ? or will e4 port SWT to
> iPhone
> > or iPad with the help of GWT or
> > convert every things to Cocoa ?
> >
> > Thanks
> >
> >
> >
> >
> > _______________________________________________
> > e4-dev mailing list
> > e4-dev@xxxxxxxxxxx <mailto:e4-dev@xxxxxxxxxxx>
> > https://dev.eclipse.org/mailman/listinfo/e4-dev
>
>
> --
> B e s t S o l u t i o n . a t EDV Systemhaus GmbH
> ------------------------------------------------------------------------
> tom schindl geschaeftsfuehrer/CEO
> ------------------------------------------------------------------------
> eduard-bodem-gasse 5/1 A-6020 innsbruck phone ++43 512 935834
> _______________________________________________
> e4-dev mailing list
> e4-dev@xxxxxxxxxxx <mailto:e4-dev@xxxxxxxxxxx>
> https://dev.eclipse.org/mailman/listinfo/e4-dev
>
>
>
>
> _______________________________________________
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> https://dev.eclipse.org/mailman/listinfo/e4-dev
--
B e s t S o l u t i o n . a t EDV Systemhaus GmbH
------------------------------------------------------------------------
tom schindl geschaeftsfuehrer/CEO
------------------------------------------------------------------------
eduard-bodem-gasse 5/1 A-6020 innsbruck phone ++43 512 935834
