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107 lines
3.2 KiB
Python
107 lines
3.2 KiB
Python
"""
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Generate a colorscheme using imagemagick.
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"""
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import re
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import shutil
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import subprocess
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import sys
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from .. import util
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from ..settings import COLOR_COUNT
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def imagemagick(color_count, img, magick_command):
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"""Call Imagemagick to generate a scheme."""
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flags = ["-resize", "25%", "-colors", str(color_count),
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"-unique-colors", "txt:-"]
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img += "[0]"
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return subprocess.check_output([*magick_command, img, *flags]).splitlines()
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def has_im():
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"""Check to see if the user has im installed."""
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if shutil.which("magick"):
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return ["magick", "convert"]
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elif shutil.which("convert"):
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return ["convert"]
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print("error: imagemagick not found, exiting...\n"
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"error: wal requires imagemagick to function.")
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sys.exit(1)
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def gen_colors(img, color_count):
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"""Format the output from imagemagick into a list
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of hex colors."""
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magick_command = has_im()
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for i in range(0, 20, 1):
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raw_colors = imagemagick(color_count + i, img, magick_command)
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if len(raw_colors) > 16:
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break
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elif i == 19:
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print("colors: Imagemagick couldn't generate a suitable scheme",
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"for the image. Exiting...")
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sys.exit(1)
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else:
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print("colors: Imagemagick couldn't generate a %s color palette, "
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"trying a larger palette size %s."
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% (color_count, color_count + i))
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return [re.search("#.{6}", str(col)).group(0) for col in raw_colors[1:]]
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def create_palette(img, colors, light):
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"""Sort the generated colors and store them in a dict that
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we will later save in json format."""
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raw_colors = colors[:1] + colors[8:16] + colors[8:-1]
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if light:
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# Manually adjust colors.
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raw_colors[7] = raw_colors[0]
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raw_colors[0] = util.lighten_color(raw_colors[15], 0.85)
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raw_colors[15] = raw_colors[7]
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raw_colors[8] = util.lighten_color(raw_colors[7], 0.25)
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else:
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# Darken the background color slightly.
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if raw_colors[0][1] != "0":
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raw_colors[0] = util.darken_color(raw_colors[0], 0.25)
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# Manually adjust colors.
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raw_colors[7] = util.blend_color(raw_colors[7], "#EEEEEE")
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raw_colors[8] = util.darken_color(raw_colors[7], 0.30)
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raw_colors[15] = util.blend_color(raw_colors[15], "#EEEEEE")
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colors = {"wallpaper": img, "alpha": util.Color.alpha_num,
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"special": {}, "colors": {}}
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colors["special"]["background"] = raw_colors[0]
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colors["special"]["foreground"] = raw_colors[15]
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colors["special"]["cursor"] = raw_colors[15]
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if light:
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for i, color in enumerate(raw_colors):
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colors["colors"]["color%s" % i] = util.saturate_color(color, 0.5)
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colors["colors"]["color0"] = raw_colors[0]
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colors["colors"]["color7"] = raw_colors[15]
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colors["colors"]["color8"] = util.darken_color(raw_colors[0], 0.5)
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colors["colors"]["color15"] = raw_colors[15]
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else:
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for i, color in enumerate(raw_colors):
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colors["colors"]["color%s" % i] = color
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return colors
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def get(img, color_count=COLOR_COUNT, light=False):
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"""Get colorscheme."""
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colors = gen_colors(img, color_count)
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return create_palette(img, colors, light)
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