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# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
"""
Misc helper functions.
"""
import colorsys
import json
import logging
import os
class Color:
"""Color formats."""
alpha_num = "100"
def __init__(self, hex_color):
self.hex_color = hex_color
def __str__(self):
return self.hex_color
@property
def strip(self):
"""Strip '#' from color."""
return self.hex_color[1:]
def read_file_json(input_file):
"""Read data from a json file."""
with open(input_file, "r") as json_file:
return json.load(json_file)
def save_file(data, export_file):
"""Write data to a file."""
create_dir(os.path.dirname(export_file))
try:
with open(export_file, "w") as file:
file.write(data)
except PermissionError:
logging.warning("Couldn't write to %s.", export_file)
def save_file_json(data, export_file):
"""Write data to a json file."""
create_dir(os.path.dirname(export_file))
with open(export_file, "w") as file:
json.dump(data, file, indent=4)
def create_dir(directory):
"""Alias to create the cache dir."""
os.makedirs(directory, exist_ok=True)
def hex_to_rgb(color):
"""Convert a hex color to rgb."""
return tuple(bytes.fromhex(color.strip("#")))
def rgb_to_hex(color):
"""Convert an rgb color to hex."""
return "#%02x%02x%02x" % (*color,)
def darken_color(color, amount):
"""Darken a hex color."""
color = [int(col * (1 - amount)) for col in hex_to_rgb(color)]
return rgb_to_hex(color)
def lighten_color(color, amount):
"""Lighten a hex color."""
color = [int(col + (255 - col) * amount) for col in hex_to_rgb(color)]
return rgb_to_hex(color)
def blend_color(color, color2):
"""Blend two colors together."""
r1, g1, b1 = hex_to_rgb(color)
r2, g2, b2 = hex_to_rgb(color2)
r3 = int(0.5 * r1 + 0.5 * r2)
g3 = int(0.5 * g1 + 0.5 * g2)
b3 = int(0.5 * b1 + 0.5 * b2)
return rgb_to_hex((r3, g3, b3))
def saturate_color(color, amount):
"""Saturate a hex color."""
r, g, b = hex_to_rgb(color)
r, g, b = [x / 255.0 for x in (r, g, b)]
h, l, s = colorsys.rgb_to_hls(r, g, b)
s = amount
r, g, b = colorsys.hls_to_rgb(h, l, s)
r, g, b = [x * 255.0 for x in (r, g, b)]
return rgb_to_hex((int(r), int(g), int(b)))
def rgb_to_yiq(color):
"""Sort a list of colors."""
return colorsys.rgb_to_yiq(*hex_to_rgb(color))
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