#!/usr/bin/python3 import argparse RED_LUM = 0.30 GREEN_LUM = 0.59 BLUE_LUM = 0.11 INTENSITY_FACTOR = 0.75 LIGHT_FACTOR = 0 LUMINOSITY_FACTOR = 0.25 LIGHT_SEL_FACTOR = 0.15 LIGHT_BS_FACTOR = 0.40 LIGHT_TS_FACTOR = 0.20 DARK_SEL_FACTOR = 0.15 DARK_BS_FACTOR = 0.30 DARK_TS_FACTOR = 0.50 HI_SEL_FACTOR = 0.15 HI_BS_FACTOR = 0.40 HI_TS_FACTOR = 0.60 LO_SEL_FACTOR = 0.15 LO_BS_FACTOR = 0.60 LO_TS_FACTOR = 0.50 DARK_THRESHOLD = 0.2 LIGHT_THRESHOLD = 0.93 FOREGROUND_THRESHOLD = 0.7 def brightness(color): (red, green, blue) = color intensity = (red + green + blue) / 3 luminosity = int(RED_LUM * red + GREEN_LUM * green + BLUE_LUM * blue) maxprimary = max(red, green, blue) minprimary = min(red, green, blue) light = (minprimary + maxprimary) / 2 return (intensity * INTENSITY_FACTOR + light * LIGHT_FACTOR + luminosity * LUMINOSITY_FACTOR) / 255 def calculate_colors_for_dark_bg(bg, bri): (red, green, blue) = bg if bri > FOREGROUND_THRESHOLD: fg = (0, 0, 0) else: fg = (255, 255, 255) sel = (red + DARK_SEL_FACTOR * (255 - red), green + DARK_SEL_FACTOR * (255 - green), blue + DARK_SEL_FACTOR * (255 - blue)) bs = (red + DARK_BS_FACTOR * (255 - red), green + DARK_BS_FACTOR * (255 - green), blue + DARK_BS_FACTOR * (255 - blue)) ts = (red + DARK_TS_FACTOR * (255 - red), green + DARK_TS_FACTOR * (255 - green), blue + DARK_TS_FACTOR * (255 - blue)) return (bg, fg, sel, bs, ts) def calculate_colors_for_medium_bg(bg, bri): (red, green, blue) = bg if bri > FOREGROUND_THRESHOLD: fg = (0, 0, 0) else: fg = (255, 255, 255) f = LO_SEL_FACTOR + bri * (HI_SEL_FACTOR - LO_SEL_FACTOR) sel = (red - red * f, green - green * f, blue - blue * f) f = LO_BS_FACTOR + bri * (HI_BS_FACTOR - LO_BS_FACTOR) bs = (red - red * f, green - green * f, blue - blue * f) f = LO_TS_FACTOR + bri * (HI_TS_FACTOR - LO_TS_FACTOR) ts = (red + (255 - red) * f, green + (255 - green) * f, blue + (255 - blue) * f) return (bg, fg, sel, bs, ts) def calculate_colors_for_light_bg(bg, bri): (red, green, blue) = bg if bri > FOREGROUND_THRESHOLD: fg = (0, 0, 0) else: fg = (255, 255, 255) sel = (red - LIGHT_SEL_FACTOR * red, green - LIGHT_SEL_FACTOR * green, blue - LIGHT_SEL_FACTOR * blue) bs = (red - LIGHT_BS_FACTOR * red, green - LIGHT_BS_FACTOR * green, blue - LIGHT_BS_FACTOR * blue) ts = (red - LIGHT_TS_FACTOR * red, green - LIGHT_TS_FACTOR * green, blue - LIGHT_TS_FACTOR * blue) return (bg, fg, sel, bs, ts) def calculate_colors(color): bri = brightness(color) if bri < DARK_THRESHOLD: colors = calculate_colors_for_dark_bg(color, bri) elif bri > LIGHT_THRESHOLD: colors = calculate_colors_for_light_bg(color, bri) else: colors = calculate_colors_for_medium_bg(color, bri) return tuple(tuple(int(c) for c in color) for color in colors) def parse_color(color): if color.startswith('Black'): return (0, 0, 0) if color.startswith('White'): return (255, 255, 255) r = int(color[1:3], 16) g = int(color[5:7], 16) b = int(color[9:11], 16) return (r, g, b) def format_color(color): (r, g, b) = color return "#{:02X}{:02X}{:02X}".format(r, g, b) parser = argparse.ArgumentParser(description='Convert CDE palettes to CSS') parser.add_argument('file', metavar='FILE', help='Path of input palette file (*.dp)') parser.add_argument('-c', '--colors', type=int, choices=[2, 4, 8], default=8) args = parser.parse_args() with open(args.file) as f: lines = f.readlines() active = parse_color(lines[0]) inactive = parse_color(lines[1]) background = parse_color(lines[2]) input = parse_color(lines[3]) window = parse_color(lines[4]) dialog = parse_color(lines[5]) seven = parse_color(lines[6]) eight = parse_color(lines[7]) active = calculate_colors(active) inactive = calculate_colors(inactive) input = calculate_colors(input) window = calculate_colors(window) dialog = calculate_colors(dialog) if args.colors == 4: window = inactive dialog = inactive elif args.colors == 2: active = input inactive = calculate_colors(background) input = inactive window = inactive dialog = inactive print(':root {') print(' --focus: ' + format_color(active[0]) + ';') print() print(' --desktop-bg: ' + format_color(background) + ';') print() print(' --button-bg: ' + format_color(window[0]) + ';') print(' --button-fg: ' + format_color(window[1]) + ';') print(' --button-active-bg: ' + format_color(window[2]) + ';') print(' --button-active-fg: ' + format_color(window[1]) + ';') print(' --button-dark: ' + format_color(window[3]) + ';') print(' --button-light: ' + format_color(window[4]) + ';') print() print(' --input-bg: ' + format_color(input[0]) + ';') print(' --input-fg: ' + format_color(input[1]) + ';') print(' --input-dark: ' + format_color(input[3]) + ';') print(' --input-light: ' + format_color(input[4]) + ';') print() print(' --dialog-button-bg: ' + format_color(dialog[0]) + ';') print(' --dialog-button-fg: ' + format_color(dialog[1]) + ';') print(' --dialog-button-active-bg: ' + format_color(dialog[2]) + ';') print(' --dialog-button-active-fg: ' + format_color(dialog[1]) + ';') print(' --dialog-button-dark: ' + format_color(dialog[3]) + ';') print(' --dialog-button-light: ' + format_color(dialog[4]) + ';') print() print(' --title-bar-bg: ' + format_color(inactive[0]) + ';') print(' --title-bar-fg: ' + format_color(inactive[1]) + ';') print(' --title-bar-dark: ' + format_color(inactive[3]) + ';') print(' --title-bar-light: ' + format_color(inactive[4]) + ';') print() print(' --title-bar-active-bg: ' + format_color(active[0]) + ';') print(' --title-bar-active-fg: ' + format_color(active[1]) + ';') print(' --title-bar-active-dark: ' + format_color(active[3]) + ';') print(' --title-bar-active-light: ' + format_color(active[4]) + ';') print('}')