Gradience/gradience/backend/utils/colors.py

55 lines
1.8 KiB
Python

# colors.py
#
# Change the look of Adwaita, with ease
# Copyright (C) 2022 Gradience Team
#
# 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 <https://www.gnu.org/licenses/>.
import material_color_utilities_python as monet
def rgba_from_argb(argb, alpha=None) -> str:
base = "rgba({}, {}, {}, {})"
red = monet.redFromArgb(argb)
green = monet.greenFromArgb(argb)
blue = monet.blueFromArgb(argb)
if not alpha:
alpha = monet.alphaFromArgb(argb)
return base.format(red, green, blue, alpha)
def argb_to_color_code(argb, alpha=None) -> str:
"""
This function can return either an hexadecimal or rgba-formatted color code.
By default this function returns hexadecimal color codes.
If alpha parameter is specified, then the function will return
an rgba-formatted color code.
"""
hex_base = "#{0:x}{1:x}{2:x}"
rgba_base = "rgba({0}, {1}, {2}, {3})"
red_chnl = monet.redFromArgb(argb)
green_chnl = monet.greenFromArgb(argb)
blue_chnl = monet.blueFromArgb(argb)
alpha_chnl = alpha
if not alpha:
alpha_chnl = monet.alphaFromArgb(argb)
if alpha_chnl in (255, 0.0):
return hex_base.format(red_chnl, green_chnl, blue_chnl)
return rgba_base.format(red_chnl, green_chnl, blue_chnl, alpha_chnl)