I'm working on an application that is intended to be used over X11 forwarding, so drawing is a significant bottleneck. In most places I've been able to draw only what pixels have changed, except if the window is resized in which case I'm forced to draw everything.
I suspect the culprit is a call to
in
(which lives in Fl.cxx)
but I can't figure out what to do about it. I feel like there should be some method I can override but so far none I've tried have helped. Any suggestions?