[sugar] PenTablet user interface
Tomeu Vizoso
tomeu
Mon Apr 7 16:33:44 EDT 2008
Best would be to create personal trees for sugar-toolkit and Paint:
http://wiki.laptop.org/go/Creating_a_personal_git_tree
But you would need an account in dev.laptop.org for that. You can ask
to Henry Hardy (our sysadmin) in a similar way to project hosting
requests:
http://wiki.laptop.org/go/Project_hosting
But I guess it will be easier for you to just send the patches to this
mailing list, that's also fine.
Thanks,
Tomeu
On Mon, Apr 7, 2008 at 10:24 PM, Patrick Dubroy <pdubroy at gmail.com> wrote:
> Great! I think the best thing to do right now is for me to release
> what I have. Can you (or anybody else) suggest the best place to put
> the code?
>
> Here's what I have:
> - a GTK widget for the 1-to-1 case. This is eventually destined for
> sugar.graphics, I think.
> - an activity that demonstrates the proposed interfaces for the
> unconstrained drawing task (e.g. Paint)
> - (soon) a GTK container widget for the unconstrained drawing task.
> However, the actual behaviour of this widget is still to be
> determined.
>
> Would it make sense to create a branch in the sugar-toolkit repository
> for the GTK widgets? For the activity, I could either host that on my
> own svn server, or put it into an OLPC repository.
>
>
> Pat
> --
> Patrick Dubroy
> http://dubroy.com/blog - on programming, usability, and hci
>
>
>
> On Mon, Apr 7, 2008 at 4:10 PM, Eben Eliason <eben.eliason at gmail.com> wrote:
> > Hi Pat -
> >
> > I think that the technical solutions you've identified sound quite
> > good, and make some nice improvements on my initial behavioral sketch
> > as written up for the Paint activity. I'd definitely be interested in
> > seeing any technical demos you have working, and also would like the
> > chance to work with you on some graphical aspects of the widget and/or
> > the experience (and hance, the API) for more complex use cases.
> >
> > - Eben
> >
> >
> >
> >
> > On Mon, Apr 7, 2008 at 3:27 PM, Patrick Dubroy <pdubroy at gmail.com> wrote:
> > > (This was posted to olpc-devel a few weeks ago, but I just realized
> > > that it belongs more on this list)
> > >
> > > Hi,
> > >
> > > I'm working on a project to improve the PenTablet support. I have two
> > > main goals:
> > >
> > > 1. Build a GTK widget that an application developer could use to get
> > > tablet support "for free". The widget would provide a 1-to-1 mapping
> > > between the physical tablet and the on-screen drawing area. For
> > > example, a penmanship application might have an area on-screen where a
> > > child could practice their writing.
> > >
> > > 2. For the more complicated case of freehand drawing in e.g. the Paint
> > > activity, my goal is to define the interface through which the user
> > > will be able to draw on an arbitrary area of the canvas.
> > >
> > > Of course, this is all pending proper driver support for the
> > > PenTablet. For now, I am prototyping these applications by reading
> > > directly from /dev/input/event5.
> > >
> > > I know that this has been discussed previously on the mailing list,
> > > but to my knowledge there's been no agreement on exactly how the UI
> > > will work for the PenTablet. I've created a page in the wiki
> > > (http://wiki.laptop.org/go/PenTablet_UI) that summarizes the previous
> > > suggestions that I am aware of. If you have any opinions on this,
> > > please take a look at let me know what you think.
> > >
> > > My personal feeling is that the best option is this:
> > > - the tablet is always mapped to a rectangle in the center of the
> > > screen. Using the grab button and the stylus, the canvas can be moved
> > > around underneath the rectangle (Option 1 for Adjusting the Mapping)
> > > - to allow for precise drawing, the user can engage a "hover mode" by
> > > holding down the Alt key while dragging the stylus (Option B for
> > > Precise Drawing)
> > >
> > > I have an application which demonstrates some of these techniques,
> > > which I could make available to anyone who is interested. I am also
> > > planning on doing a small, informal user study to test some of the
> > > techniques.
> > >
> > > Pat
> > > --
> > > Patrick Dubroy
> > > http://dubroy.com/blog - on programming, usability, and hci
> > > _______________________________________________
> > > Sugar mailing list
> > > Sugar at lists.laptop.org
> > > http://lists.laptop.org/listinfo/sugar
> > >
> >
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