Need help, regarding Easy Hack, Bug 64290 - UI: count selected rows and columns..

Hello,
I ve been working on this easy hack for almost a week now. First of all it
is not a easy hack, atleast not for the fist timers.
For this hack the code pointers are not given, and i was able to find some
code pointers using opengrok.
Initially i looked up in the xml file to get the UI component. Then using
the component ID found the .xcu file.
I also found the implementation of statusbarcontroller and implementations
of separate components ie, zoomctrl.cxx etc.. in svx module.
Well in these controllers they require a satusbar items too.

Consider i want to add a constant valued string to the bar. All i want is
someone to instruct me, what all i need to take care of while creating this
component.
I also didn't find the code that links the component in the .xcu file and
the actual implementation of the controller.

Someone, please help.. Have been working on this for a very long time. This
is my second easy hack, even the first one I chose didn't have an easy
answer.(Easy Hack 42788 <https://bugs.freedesktop.org/show_bug.cgi?id=42788>)..
Though have submitted what i got on the list..

Thank you.