Gtk::Editor ?

hi,

I'm new to the list and i'm just playing yet.. so I have some questions i.e :

I want to make something like Editor so it have to inherit Gtk::Text, but on 
the other hand It have to include 
Notebook + HBox + Text + VScrollbar.. currently I made it so that it inherits 
Gtk::Window, but on the other hand I may want it to be avalailable for 
inclusion in other Windows, so it must probably have to inherit Notebook not 
Window ? What u will say about this ?

Next questions is that I will probably want when someone call a Text method it 
to be handled by $$self{_text} (where is Gtk::Text object stored) not by 
Gtk::Window.. i.e. my @ISA = (Gtk::Window Exporter) ? 
Do I have to include Gtk::Text in @ISA or to do special handling ?
(i know this is more OO question but in general how Gtk should be subclassed)

ooops i forgot the most important thing :"), I'm doing this as Gtk::Editor ...

Other related questions : 
Does anyone know a module/algorithm for coloring-Perl code ?
Does anyone know a module/algorithm for TAB-completion as some IDE's are doing 
it ?

raptor@xxxxxxxx