--===============0490725963==
Content-Type: multipart/signed;
  boundary="nextPart1769823.PPznlUqXRo";
  protocol="application/pgp-signature";
  micalg=pgp-sha1
Content-Transfer-Encoding: 7bit

--nextPart1769823.PPznlUqXRo
Content-Type: text/plain;
  charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

On Saturday 24 November 2007, Ryan Bitanga wrote:
> the data engine isn't as simple as I had hoped. Data engines are more
> suitable for receiving signals from objects that aren't connected to
> it, e.g. filesystem and network information, or accepting input with
> an associated output.

not really.

> However, there seems to be no lightweight=20
> message passing, e.g. sending a string to the data engine without

that is correct. the DataEngine class is currently designed for read-only. =
you=20
are the second person to ask for read-write, so it's probably something we=
=20
need to look at for 4.1

given the interesting things you were trying, it really does show that some=
=20
thought needs to go into this to prevent people from doing truly outlandish=
=20
things that break plasma concepts.

> needing an associated data object. The query method returns an unused
> empty Data object and seems quite wasteful.

that's also completely abusing the point of the query method.

> Even a signal and slot=20
> implementation would require me to include the header file of the data
> engine,

no it doesn't. signals and slots are just const char*'s; there is no=20
compile-time validation of them, it's all runtime. so just use the=20
DataEngine* you get from dataEngine() in the applet (or however you are=20
getting it) and connect away.

> A data engine would allow the information to be shared with a quick
> launch plasmoid, which would need to notify the data engine of
> additional launches itself, but a non-data engine would give allow me
> to use a more suitable API.

if by "suitable" one means "we're going back to making purpose-specific API=
s=20
that are then completely un-interoperable with anything else on the desktop=
"=20
then .. sure. ;)

=2D-=20
Aaron J. Seigo
humru othro a kohnu se
GPG Fingerprint: 8B8B 2209 0C6F 7C47 B1EA  EE75 D6B7 2EB1 A7F1 DB43

KDE core developer sponsored by Trolltech

--nextPart1769823.PPznlUqXRo
Content-Type: application/pgp-signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)

iD8DBQBHSpQy1rcusafx20MRAhvzAJ9Z0uikag7atgbyTltbMOraETNItwCgqZDe
+g2L39VxlbUHrbc7S4Qa+Ww=
=kjvx
-----END PGP SIGNATURE-----

--nextPart1769823.PPznlUqXRo--

--===============0490725963==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
Panel-devel mailing list
Panel-devel@kde.org
https://mail.kde.org/mailman/listinfo/panel-devel

--===============0490725963==--