[gentoo-java] Choosing default PLAF for SWIG

[gentoo-java] Choosing default PLAF for SWIG

[rozelak]

Hallo,

I want to ask, if there is a way of choosing default Look&Feel for installed
java. The default PLAF is Metal (javax.swing.plaf.metal.MetalLookAndFeel),
but it does not look wery well ;-) How to tell java (using java-config?)
to use GTK+ (com.sun.java.swing.plaf.gtk.GTKLookAndFeel), or others
once installed, by default. I gues it must be configurable somewhere,
but I don't think that java-config can handle it now. So, how to do
it now, and will java-config support it in future?

I am sorry if a similar qestion was already answered, but there is no
way of searching in the mailing list (except going through all the messages)

Thank you very much for your help,
Dan


P.S. mabye one more little question: is gentoo going to support opensourced
java, once suitable for use? I mean download sources and compile all
from scratch?

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Re: [gentoo-java] Choosing default PLAF for SWIG

[Vlastimil Babka]

rozelak@volny.cz wrote:
> Hallo,
> 
> I want to ask, if there is a way of choosing default Look&Feel for installed
> java. The default PLAF is Metal (javax.swing.plaf.metal.MetalLookAndFeel),
> but it does not look wery well ;-) How to tell java (using java-config?)
> to use GTK+ (com.sun.java.swing.plaf.gtk.GTKLookAndFeel), or others
> once installed, by default. I gues it must be configurable somewhere,
> but I don't think that java-config can handle it now. So, how to do
> it now, and will java-config support it in future?

http://java.sun.com/docs/books/tutorial/uiswing/lookandfeel/plaf.html#commandLine

Looking at this, seems there's the command line param, and 
swing.properties in jdk's dir, which would need to be changed after each 
jdk reinstall though, some equivalent file in $HOME/.java or similar 
would be nice but I'm not sure there exists one.

Command line param should be somehow possible with gjl-based launchers 
for java applications installed through portage. The launcher will 
source files in /etc/java-config-2/launcher.d/$package and 
~/.gentoo/java-config-2/launcher.d/$package
(see /usr/share/java-config-2/launcher/launcher.bash)
Declaring something like gjl_args="-Dswing.defaultlaf=$foo" there should 
be eventually passed to the java process.

Won't affect running java manually though, and it's hacky. Certainly 
room for improvements, suggestions welcome.

> I am sorry if a similar qestion was already answered, but there is no
> way of searching in the mailing list (except going through all the messages)

I think gmane.org can search through archives of mailing lists including 
this one, but I don't recall such question myself.

> P.S. mabye one more little question: is gentoo going to support opensourced
> java, once suitable for use? I mean download sources and compile all
> from scratch?

Sure, one day :) openjdk builds are available in java-experimental 
overlay, but it's time-consuming to maintain them and we could surely 
use more people dedicated to that...

Caster
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