[OpenJDK 2D-Dev] [PATCH] SwingUtilities2.isLocalDisplay()

Roman Kennke roman.kennke at aicas.com
Wed Sep 10 19:04:31 UTC 2008

Hi Dmitri and Oleg,

> > I understand than you do not want to add questionable code in 2D,
> > but I do not like the idea to make this by adding questionable code
> > to Swing. So before falliwing back to hack I'd suggest to thinkabout
>    I'm not sure what you mean by "adding questionable code
>    to Swing" - the code was already there. Now instead of
>    directly calling sun internal API it will call a better
>    defined internal API.

Yeah, I agree.

> > possible API, otherwise we have a good chance to keep this hack
> > in Swing code forever :(
>    Swing is part of the platform, and will always have to
>    use some APIs in the implementation which are not available
>    to external developers.
>    I don't see a problem with that. In this particular case
>    I really don't see any benefit in exposing this very
>    platform-specific API to the developers.

Yeah. It looks like most (all?) Sun-specific code is in SwingUtilities2
anyway, so this is more or less the porting interface for Swing for
people who really need to port OpenJDK Swing to a different JDK. If it
is a goal to support that, it might make sense to find all remaining
uses of Sun-specific code in Swing and refactor that to also use
SwingUtilities2. Or even better, create a separate interface and factory
for implementations of that interface that would be provided by the
developer who ports Swing. But that seems a little over the top right
now. I also suggest to get the original patch through.

Dipl.-Inform. (FH) Roman Kennke, Software Engineer, http://kennke.org
aicas Allerton Interworks Computer Automated Systems GmbH
Haid-und-Neu-Straße 18 * D-76131 Karlsruhe * Germany
http://www.aicas.com   * Tel: +49-721-663 968-48
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