mirror of
https://github.com/dylanaraps/pywal.git
synced 2025-05-19 15:50:50 +02:00
114 lines
3.3 KiB
Python
114 lines
3.3 KiB
Python
"""
|
|
Generate a colorscheme using imagemagick.
|
|
"""
|
|
import os
|
|
import re
|
|
import shutil
|
|
import subprocess
|
|
import sys
|
|
|
|
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, "-resize", "25%",
|
|
"+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.")
|
|
sys.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...")
|
|
sys.exit(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:]
|
|
|
|
# Darken the background color if it's too light.
|
|
# The value can be a letter or an int so we treat the
|
|
# entire test as strings.
|
|
if raw_colors[0][1] not in ["0", "1", "2"]:
|
|
raw_colors[0] = util.darken_color(raw_colors[0], 0.25)
|
|
|
|
# Create a comment color from the background.
|
|
raw_colors[8] = util.lighten_color(raw_colors[0], 0.40)
|
|
|
|
colors = {}
|
|
colors["wallpaper"] = img
|
|
colors["special"] = {}
|
|
colors["colors"] = {}
|
|
|
|
colors["special"]["background"] = raw_colors[0]
|
|
colors["special"]["foreground"] = raw_colors[15]
|
|
colors["special"]["cursor"] = raw_colors[15]
|
|
|
|
for index, color in enumerate(raw_colors):
|
|
colors["colors"]["color%s" % index] = color
|
|
|
|
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 = img.replace("/", "_").replace(".", "_")
|
|
cache_file = os.path.join(cache_dir, "schemes", cache_file + ".json")
|
|
|
|
if os.path.isfile(cache_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
|
|
|
|
|
|
def file(input_file):
|
|
"""Import colorscheme from json file."""
|
|
data = util.read_file_json(input_file)
|
|
|
|
if "wallpaper" not in data:
|
|
data["wallpaper"] = "None"
|
|
|
|
return data
|