def get(fg, bg="black"):
global PAIR_INDEX
fg_rgb = coerce_to_rgb(fg) # allow RGB or name
bg_rgb = coerce_to_rgb(bg) # coerce to RGB
key = (fg_rgb, bg_rgb)
if key in FG_BG_TO_PAIR_INDEX:
return FG_BG_TO_PAIR_INDEX[key]
else:
# create new color pair
fg_i = iterm_color_table.lookup(fg_rgb)
bg_i = iterm_color_table.lookup(bg_rgb)
curses.init_pair(PAIR_INDEX, fg_i, bg_i)
out = curses.color_pair(PAIR_INDEX)
FG_BG_TO_PAIR_INDEX[key] = out
PAIR_INDEX_TO_FG_BG[out] = key
PAIR_INDEX += 1
return out
def scale_index(index, factor):
return iterm_color_table.lookup(scale_rgb(iterm_color_table.reverse_lookup(index), factor))