Hello Micah and everybody,
one of our products (the low-end one) will have no touchscreen, but
function keys.
We intend to place a row of unlabelled physical buttons just under the
screen, and display the labels on the screen. Much like some HP
calculators (HP28, HP48, etc.).
Having this capability will surely interest guys hacking (wanting to
hack) pg apps on car radios, oscilloscopes, field devices... :-)
A toolbar application (let's name it 'pgbtnbar') that we intend to write
(sharing some similarities with pgboard) would display these buttons.
An application intending to use the button bar would have to do it
explicitly, by passing a button map to pgbtnbar, which will stack these
maps.
A map could consist of a list of pairs, each pair being a string and an
id. Pgbtnbar would care for sacrificing one button for horizontal
scrolling if necessary.
Some issues need a solution:
* The exchange protocol between pgbtnbar and the applications. I
think it would be nice to have it go via pgserver (i.e.
app<->pgserver<->pgbtnbar and not app<->pgbtnbar )
* Having (via an option) the standard dialogs use pgbtnbar
* The focus from widget to widget (e.g. PG_WIDGET_FIELD) could
be controlled by pgbtnbar, as well as scrolling inside a
widget: pgserver would, as necessary, give pgbtnbar a special
map, that pgbtnbar would merge to the current map.
All this require some work in pgserver and in the client lib too. I have
no doubts about the feasibility, but I'd like to hear your opinion about
how it could be implemented.
Pascal.
--
Pascal Bauermeister
Head of Software Development
SMARTDATA
PSE-A / EPFL
CH-1015 Lausanne
http://www.smartdata.ch
mailto:[EMAIL PROTECTED]
Phone: +41 (21) 693 84 98
fax: +41 (21) 693 84 91
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