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"""
Generate a colorscheme using Schemer2.
"""
import logging
import shutil
import subprocess
import sys
from .. import colors
from .. import util
def gen_colors(img):
"""Generate a colorscheme using Colorz."""
cmd = ["schemer2", "-format", "img::colors", "-minBright", "75", "-in"]
return subprocess.check_output([*cmd, img]).splitlines()
def adjust(cols, light):
"""Create palette."""
cols.sort(key=util.rgb_to_yiq)
raw_colors = [*cols[8:], *cols[8:]]
return colors.generic_adjust(raw_colors, light)
def get(img, light=False):
"""Get colorscheme."""
if not shutil.which("schemer2"):
logging.error("Schemer2 wasn't found on your system.")
logging.error("Try another backend. (wal --backend)")
sys.exit(1)
cols = [col.decode('UTF-8') for col in gen_colors(img)]
return adjust(cols, light)
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