This is the right approach to a GUI toolkit.
Note that personally, I believe the details of the presentation should
be separate from Haskell, stored in a separate file that is machine-
friendly, so designers can work in concert and in parallel with
developers.
Regards,
John A. De Goes
N-Brain, Inc.
The Evolution of Collaboration
http://www.n-brain.net | 877-376-2724 x 101
On Oct 6, 2009, at 10:22 AM, Andrew U. Frank wrote:
thanks for the connection to the gui runner - it is interesting and
worthwile,
but a different approach. my approach is strictly declarative and
does not
describe sequences of process. it describes screens and links
operations to
buttons. then it takes inputs from the screen and runs the
operations and
posts the result on the screen. some operations open new screens etc.
i started with the idea that ontologies describe the semantics of
data in a
static way; this should be (nearly) enough to create the user
interface -
which is all about semantics of the data.
of course, you have to include in the ontology the semantics of the
operations
(as class with functions).
the implementation is close to a reactive framework - adding a
representation
of all what is visible on the screen (the universer of discourse) in
a format
usable by the operations. then you have only to connect this
'universe of
discourse' to the programs which operate on the data and post their
reaction
in the UoD and map the UoD to the screen
the details are messy as i attempted to construct the internal data
structures
etc. as automatically as possible and with minimal designer input
I did not use template haskell, yet, but will need to (i think).
i am happy to share it with interested parties and hear the comments
and
perhaps somebody can help me with using templates to reduce the . it
is IMHO
not yet ready for posting in a library - but this is certainly the
goal.
_______________________________________________
Haskell-Cafe mailing list
Haskell-Cafe@haskell.org
http://www.haskell.org/mailman/listinfo/haskell-cafe
_______________________________________________
Haskell-Cafe mailing list
Haskell-Cafe@haskell.org
http://www.haskell.org/mailman/listinfo/haskell-cafe
