Xclasses is a C++ layout library for the X Window System.
All objects (called gadgets) are font sensitive, i.e. their
size changes with the size of the used screen font and the
size of the window. All this is done by Xclasses itself!
All objects (gadgets) have the same base class (class
gadget), so they are all used in the same way. Gadgets are
put together in groups (class group also based on gadget)
which manage the correct size of all gadgets (and/or
groups!) inside.