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# Copyright (C) 2009, 2010 Roman Zimbelmann <romanz@lavabit.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
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
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
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