DBus font installs [incomplete]

[Andrew Su]

Hello,

  This patch is an attempt at requesting users to install a font that will allow them to display the text being rendered if the glyph is missing. It is still a work in progress. 

Known issues:
 - Segmentation fault when rechecking for newly installed fonts to load.
 - If characters from different languages are being rendered one at a time it would constantly request user to install the languages not found.
 - May ask to install a non-standard language (unrecognised by packagekit).

Attached: 
  - addFontInstall.patch: This will add the patch and modify the Makefile accordingly.
  - GlyphChecker.c: Used to create libglyphchecker.so (which should be placed in the openjdk's lib directory.
  - GlyphChecker.h: Header for using jni.

I used [on a x86_64 machine]

gcc -I/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/include/ -I/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/include/linux/ -I/usr/include/dbus-1.0/ -I/usr/include/glib-2.0/ -I/usr/lib64/glib-2.0/include -shared -fPIC -g -O0 -Wall -lfontconfig -ldbus-glib-1 -o libglyphchecker.so GlyphChecker.c

to build the library file. (Replace with where your libs are..) once compiled, place the .so into your jre's lib dir.
ex: ${BUILD_DIR}/openjdk.build/j2sdk-image/jre/lib/amd64/

To test that it searches and installs fonts..
You can run it as follows:
 GlyphChecker.addMissing((char) 0x710);
 GlyphChecker.doAll(); // This should return true if you accepted to install

Please let me know if you see any issues with it.

Regards,
  Andrew
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