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Convert 256 colors to 8 if the terminal doesn’t support them

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This commit is contained in:
Florent Le Coz 2011-09-25 15:58:27 +02:00
parent e718682c7f
commit 412e9c281c
1 changed files with 36 additions and 2 deletions
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38
src/theming.py
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@ -163,6 +163,30 @@ theme = Theme()
# the next time.
curses_colors_dict = {}
table_256_to_16 = [
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
0, 4, 4, 4, 12, 12, 2, 6, 4, 4, 12, 12, 2, 2, 6, 4,
12, 12, 2, 2, 2, 6, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10,
10, 10, 10, 14, 1, 5, 4, 4, 12, 12, 3, 8, 4, 4, 12, 12,
2, 2, 6, 4, 12, 12, 2, 2, 2, 6, 12, 12, 10, 10, 10, 10,
14, 12, 10, 10, 10, 10, 10, 14, 1, 1, 5, 4, 12, 12, 1, 1,
5, 4, 12, 12, 3, 3, 8, 4, 12, 12, 2, 2, 2, 6, 12, 12,
10, 10, 10, 10, 14, 12, 10, 10, 10, 10, 10, 14, 1, 1, 1, 5,
12, 12, 1, 1, 1, 5, 12, 12, 1, 1, 1, 5, 12, 12, 3, 3,
3, 7, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10, 10, 10, 10, 14,
9, 9, 9, 9, 13, 12, 9, 9, 9, 9, 13, 12, 9, 9, 9, 9,
13, 12, 9, 9, 9, 9, 13, 12, 11, 11, 11, 11, 7, 12, 10, 10,
10, 10, 10, 14, 9, 9, 9, 9, 9, 13, 9, 9, 9, 9, 9, 13,
9, 9, 9, 9, 9, 13, 9, 9, 9, 9, 9, 13, 9, 9, 9, 9,
9, 13, 11, 11, 11, 11, 11, 15, 0, 0, 0, 0, 0, 0, 8, 8,
8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15
]
def color_256_to_16(color):
if color == -1:
return color
return table_256_to_16[color]
def to_curses_attr(color_tuple):
"""
Takes a color tuple (as defined at the top of this file) and
@ -174,6 +198,17 @@ def to_curses_attr(color_tuple):
else:
colors = color_tuple
bold = False
if curses.COLORS != 256:
# We are not in a term supporting 256 colors, so we convert
# colors to numbers between -1 and 8
colors = (color_256_to_16(colors[0]), color_256_to_16(colors[1]))
if colors[0] >= 8:
colors = (colors[0] - 8, colors[1])
bold = True
if colors[1] >= 8:
colors = (colors[0], colors[1] - 8)
# check if we already used these colors
try:
pair = curses_colors_dict[colors]
@ -181,11 +216,10 @@ def to_curses_attr(color_tuple):
pair = len(curses_colors_dict) + 1
curses.init_pair(pair, colors[0], colors[1])
curses_colors_dict[colors] = pair
log.debug('New pair: %s (%s)' % (pair, colors,))
curses_pair = curses.color_pair(pair)
if len(color_tuple) == 3:
additional_val = color_tuple[2]
if 'b' in additional_val:
if 'b' in additional_val or bold is True:
curses_pair = curses_pair | curses.A_BOLD
if 'u' in additional_val:
curses_pair = curses_pair | curses.A_UNDERLINE