about summary refs log tree commit diff stats
path: root/ranger/gui/color.py
blob: ab986b553b6eca87b109d6e84e2b62ebcb226122 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
# Copyright (C) 2009, 2010, 2011  Roman Zimbelmann <romanz@lavabit.com>
# This software is distributed under the terms of the GNU GPL version 3.

"""
Contains abbreviations to curses color/attribute constants.

Multiple attributes can be combined with the | (or) operator, toggled
with ^ (xor) and checked for with & (and). Examples:

attr = bold | underline
attr |= reverse
bool(attr & reverse) # => True
attr ^= reverse
bool(attr & reverse) # => False
"""

import curses

COLOR_PAIRS = {10: 0}

def get_color(fg, bg):
    """
    Returns the curses color pair for the given fg/bg combination.
    """

    c = bg+2 + 9*(fg + 2)

    if c not in COLOR_PAIRS:
        size = len(COLOR_PAIRS)
        curses.init_pair(size, fg, bg)
        COLOR_PAIRS[c] = size

    return COLOR_PAIRS[c]

black   = curses.COLOR_BLACK
blue    = curses.COLOR_BLUE
cyan    = curses.COLOR_CYAN
green   = curses.COLOR_GREEN
magenta = curses.COLOR_MAGENTA
red     = curses.COLOR_RED
white   = curses.COLOR_WHITE
yellow  = curses.COLOR_YELLOW
default = -1

normal     = curses.A_NORMAL
bold       = curses.A_BOLD
blink      = curses.A_BLINK
reverse    = curses.A_REVERSE
underline  = curses.A_UNDERLINE
invisible  = curses.A_INVIS

default_colors = (default, default, normal)

def remove_attr(integer, attribute):
    """Remove an attribute from an integer"""
    if integer & attribute:
        return integer ^ attribute
    return integer