This now uses an XML layout that gets inflated and computed after a
layout pass. The drawing simply uses the coordinates stored after the
layout.
This makes it a lot easier to maintain the different views and allows us
to simply provide different XML files for different modes/views, isntead
of trying to hand tweak Java layout code.
Some TODOs - clean up the "paints" and optimize the layout/drawing
computation
Change-Id: I784919f726bd4d80aba8744a8f047fcfe79ad93a
