def cached_render(self, size, focus=False):
focus = focus and not ignore_focus
canv = CanvasCache.fetch(self, cls, size, focus)
if canv:
return canv
canv = fn(self, size, focus=focus)
validate_size(self, size, canv)
if canv.widget_info:
canv = CompositeCanvas(canv)
canv.finalize(self, size, focus)
CanvasCache.store(cls, canv)
return canv
def cached_rows(self, size, focus=False):
focus = focus and not ignore_focus
canv = CanvasCache.fetch(self, cls, size, focus)
if canv:
return canv.rows()
return fn(self, size, focus)
def _invalidate(self):
CanvasCache.invalidate(self)
