forked from Mirrors/apostrophe
103 lines
4.7 KiB
Python
103 lines
4.7 KiB
Python
#!/usr/bin/env python3
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#
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# Generates color palettes based on the specified background/foreground colors.
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#
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# Usage: python color_palette_generator.py #fg_hex #bg_hex light|dark
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#
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# The light variant is based on GitHub's style, while the dark variant is based on pre-existing Apostrophe styles.
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#
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# Accessibility is not accounted for, so make sure to verify contrast: https://webaim.org/resources/contrastchecker/
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import operator
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import os
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import sys
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def hex_to_tuple(h):
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return tuple(int(h.lstrip('#')[i:i + 2], 16) for i in (0, 2, 4))
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def tuple_to_hex(t):
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(r, g, b) = t
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if r < 0 or g < 0 or b < 0 or r > 255 or g > 255 or b > 255:
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return '#%02x%02x%02x (clamped)' % tuple(map(lambda x: max(0, min(x, 255)), t))
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else:
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return '#%02x%02x%02x' % t
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def sub_tuples(t1, t2):
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return tuple(map(operator.sub, t1, t2))
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if __name__ == '__main__':
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if len(sys.argv) != 4:
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print("Usage: {} foreground_color background_color light|dark\n" +
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"Both colors must be in hexadecimal format, eg. #f6f5f4".format(os.path.basename(__file__)))
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exit()
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target_foreground_color = hex_to_tuple(sys.argv[1])
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target_background_color = hex_to_tuple(sys.argv[2])
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dark = sys.argv[3] == "dark"
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gh_text_color = hex_to_tuple("#dbdbdb" if dark else "#24292e")
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gh_background_color = hex_to_tuple("#353535" if dark else "#ffffff")
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gh_alt_background_color = hex_to_tuple("#3a3a3a" if dark else "#f6f8fa")
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gh_link_color = hex_to_tuple("#a2c7f8" if dark else "#0366d6")
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gh_blockquote_text_color = hex_to_tuple("#959595" if dark else "#6a737d")
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gh_blockquote_border_color = hex_to_tuple("#525252" if dark else "#dfe2e5")
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gh_header_border_color = hex_to_tuple("#474747" if dark else "#eaecef")
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gh_hr_background_color = hex_to_tuple("#505050" if dark else "#e1e4e8")
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gh_table_tr_border_color = hex_to_tuple("#696969" if dark else "#c6cbd1")
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gh_table_td_border_color = hex_to_tuple("#525252" if dark else "#dfe2e5")
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gh_kbd_text_color = hex_to_tuple("#bbbbbb" if dark else "#444d56")
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gh_kbd_background_color = hex_to_tuple("#3c3c3c" if dark else "#fafbfc")
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gh_kbd_border_color = hex_to_tuple("#696969" if dark else "#c6cbd1")
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gh_kbd_shadow_color = hex_to_tuple("#979797" if dark else "#959da5")
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text_color_diff = sub_tuples(gh_text_color, target_foreground_color)
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background_color_diff = sub_tuples(gh_background_color, target_background_color)
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text_color = tuple_to_hex(target_foreground_color)
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background_color = tuple_to_hex(target_background_color)
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alt_background_color = tuple_to_hex(sub_tuples(gh_alt_background_color, background_color_diff))
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link_color = tuple_to_hex(sub_tuples(gh_link_color, text_color_diff))
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blockquote_text_color = tuple_to_hex(sub_tuples(gh_blockquote_text_color, text_color_diff))
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blockquote_border_color = tuple_to_hex(sub_tuples(gh_blockquote_border_color, background_color_diff))
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header_border_color = tuple_to_hex(sub_tuples(gh_header_border_color, background_color_diff))
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hr_background_color = tuple_to_hex(sub_tuples(gh_hr_background_color, background_color_diff))
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table_tr_border_color = tuple_to_hex(sub_tuples(gh_table_tr_border_color, background_color_diff))
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table_td_border_color = tuple_to_hex(sub_tuples(gh_table_td_border_color, background_color_diff))
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kbd_text_color = tuple_to_hex(sub_tuples(gh_kbd_text_color, text_color_diff))
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kbd_background_color = tuple_to_hex(sub_tuples(gh_kbd_background_color, background_color_diff))
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kbd_border_color = tuple_to_hex(sub_tuples(gh_kbd_border_color, background_color_diff))
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kbd_shadow_color = tuple_to_hex(sub_tuples(gh_kbd_shadow_color, background_color_diff))
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print(("--text-color: {};\n" +
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"--background-color: {};\n" +
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"--alt-background-color: {};\n" +
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"--link-color: {};\n" +
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"--blockquote-text-color: {};\n" +
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"--blockquote-border-color: {};\n" +
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"--header-border-color: {};\n" +
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"--hr-background-color: {};\n" +
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"--table-tr-border-color: {};\n" +
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"--table-td-border-color: {};\n" +
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"--kbd-text-color: {};\n" +
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"--kbd-background-color: {};\n" +
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"--kbd-border-color: {};\n" +
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"--kbd-shadow-color: {};\n").format(
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text_color,
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background_color,
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alt_background_color,
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link_color,
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blockquote_text_color,
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blockquote_border_color,
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header_border_color,
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hr_background_color,
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table_tr_border_color,
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table_td_border_color,
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kbd_text_color,
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kbd_background_color,
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kbd_border_color,
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kbd_shadow_color))
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