This one is based on inheritance, and I think it will be the best way to
create several tab types that do things just slightly differently.
Signed-off-by: Anna Schumaker <schumaker.anna@gmail.com>
I need to create a FilterDesc struct with needed widgets and then
filtering can happen generically on all tabs!
Signed-off-by: Anna Schumaker <schumaker.anna@gmail.com>