New clipping code is not completed, but it is in a state where it can be used with no problems, I think. So, tonight, I'll remove the old code.
About the new clipping code: * I will simplify things a bit, by adding those 2 methods I talked a few days ago. * ATM, in some cases a bigger-then-needed area is invalidated/redrawn. * other small things, I forgot about now. :-)