OpenOffice.org and fonts

[Wolfgang Jeltsch <wolfgang@jeltsch.net>]

Hello,

I have some questions regarding font usage in OpenOffice.org and would be very 
thankful if you could provide me with some information or pointers to 
significant information.

I use woody and the OpenOffice.org 1.1.1 packages from
    deb ftp://ftp.freenet.de/pub/debian-openoffice stable-test main contrib.
I want to use fonts for screen display as well as printing.

Do I have to install the respective fonts for X11 *and* for GhostScript?  If 
yes, isn't it poor to have two copies of each font on my harddisk?

Which role does Defoma play? Alas, I haven't found any detailed information 
about Defoma so far.

In the file README.Debian of the package openoffice.org one can read that OOo 
uses Fontconfig.  What is the function of Fontconfig?  Why does fontconfig 
depend on defoma while Fontconfig actually isn't Debian-specific?  Why 
doesn't the APT source mentioned above contain a fontconfig package?

Is it necessary to install/register fonts in OpenOffice.org or does installing 
of certain Debian packages suffice?  Which Debian packages must be installed?

Thanks in advance,
Wolfgang