mirror of
https://github.com/dylanaraps/pywal.git
synced 2025-01-23 22:38:36 +01:00
96 lines
2.8 KiB
Python
96 lines
2.8 KiB
Python
"""
|
|
Generate a colorscheme using imagemagick.
|
|
"""
|
|
import re
|
|
import shutil
|
|
import subprocess
|
|
|
|
from .settings import __cache_dir__, __color_count__
|
|
from . import util
|
|
|
|
|
|
def imagemagick(color_count, img):
|
|
"""Call Imagemagick to generate a scheme."""
|
|
colors = subprocess.Popen(["convert", img, "+dither", "-colors",
|
|
str(color_count), "-unique-colors", "txt:-"],
|
|
stdout=subprocess.PIPE)
|
|
|
|
return colors.stdout.readlines()
|
|
|
|
|
|
def gen_colors(img, color_count):
|
|
"""Format the output from imagemagick into a list
|
|
of hex colors."""
|
|
if not shutil.which("convert"):
|
|
print("error: imagemagick not found, exiting...\n"
|
|
"error: wal requires imagemagick to function.")
|
|
exit(1)
|
|
|
|
raw_colors = imagemagick(color_count, img)
|
|
|
|
index = 0
|
|
while len(raw_colors) - 1 < color_count:
|
|
index += 1
|
|
raw_colors = imagemagick(color_count + index, img)
|
|
|
|
print("colors: Imagemagick couldn't generate a", color_count,
|
|
"color palette, trying a larger palette size",
|
|
color_count + index)
|
|
|
|
if index > 20:
|
|
print("colors: Imagemagick couldn't generate a suitable scheme",
|
|
"for the image. Exiting...")
|
|
quit(1)
|
|
|
|
# Remove the first element because it isn't a color code.
|
|
del raw_colors[0]
|
|
|
|
return [re.search("#.{6}", str(col)).group(0) for col in raw_colors]
|
|
|
|
|
|
def sort_colors(img, colors):
|
|
"""Sort the generated colors and store them in a dict that
|
|
we will later save in json format."""
|
|
raw_colors = colors[:1] + colors[9:] + colors[8:]
|
|
|
|
colors = {"wallpaper": img}
|
|
|
|
colors_special = {}
|
|
colors_special.update({"background": raw_colors[0]})
|
|
colors_special.update({"foreground": raw_colors[15]})
|
|
colors_special.update({"cursor": raw_colors[15]})
|
|
|
|
colors_hex = {}
|
|
for index, color in enumerate(raw_colors):
|
|
colors_hex.update({f"color{index}": color})
|
|
|
|
colors_hex["color8"] = util.set_grey(raw_colors)
|
|
colors["special"] = colors_special
|
|
colors["colors"] = colors_hex
|
|
|
|
return colors
|
|
|
|
|
|
def get(img, cache_dir=__cache_dir__,
|
|
color_count=__color_count__, notify=False):
|
|
"""Get the colorscheme."""
|
|
# _home_dylan_img_jpg.json
|
|
cache_file = cache_dir / "schemes" / \
|
|
img.replace("/", "_").replace(".", "_")
|
|
cache_file = cache_file.with_suffix(".json")
|
|
|
|
if cache_file.is_file():
|
|
colors = util.read_file_json(cache_file)
|
|
print("colors: Found cached colorscheme.")
|
|
|
|
else:
|
|
util.msg("wal: Generating a colorscheme...", notify)
|
|
|
|
colors = gen_colors(img, color_count)
|
|
colors = sort_colors(img, colors)
|
|
|
|
util.save_file_json(colors, cache_file)
|
|
util.msg("wal: Generation complete.", notify)
|
|
|
|
return colors
|