120 lines
3.4 KiB
Python
120 lines
3.4 KiB
Python
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#!/usr/bin/env python3
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"""
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Based on labwc-gtktheme.py:
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Create labwc theme based on the current Gtk theme
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SPDX-License-Identifier: GPL-2.0-only
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Copyright (C) @Misko_2083 2019
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Copyright (C) Johan Malm 2019-2022
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"""
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import os
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import errno
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from tokenize import tokenize, NUMBER, NAME, OP
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from io import BytesIO
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import gi
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gi.require_version("Gtk", "3.0")
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from gi.repository import Gtk
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def parse(tokens):
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"""
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Parse css color expression token list and return red/green/blue values
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Valid name-tokens include 'rgb' and 'rgba', whereas 'alpha', 'shade' and
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'mix' are ignored. @other-color references are still to be implemented.
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"""
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nr_colors_to_parse = 0
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in_label = False
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color = []
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for toknum, tokval, _, _, _ in tokens:
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if '@' in tokval:
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in_label = True
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continue
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if toknum == NAME and in_label:
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color.clear()
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color.append(f"@{tokval}")
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return color
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if nr_colors_to_parse > 0:
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if toknum == OP and tokval in ')':
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print("warn: still parsing numbers; did not expect ')'")
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if toknum == NUMBER:
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color.append(tokval)
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nr_colors_to_parse -= 1
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continue
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if toknum == NAME and tokval in 'rgb':
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nr_colors_to_parse = 3
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elif toknum == NAME and tokval in 'rgba':
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nr_colors_to_parse = 4
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return color
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def color_hex(color):
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""" return rrggbb color hex from list [r, g, b,...] """
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if not color:
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return "None"
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elif len(color) < 3:
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return f"{color[0]}"
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return '{:02x}{:02x}{:02x}'.format(*(int(x) for x in color[:3]))
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def hex_from_expr(line):
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""" parse color expression to return hex style rrggbb """
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tokens = tokenize(BytesIO(line.encode('utf-8')).readline)
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color = parse(tokens)
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return color_hex(color)
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def parse_section(lines, name):
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theme = {}
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inside = False
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for line in lines:
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if f"{name} {{" in line:
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inside = True
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continue
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if inside:
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if "}" in line or "{" in line:
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inside = False
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break
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if 'color' not in line:
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continue
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key, value = line.strip().split(":", maxsplit=1)
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theme[f'{name}.{key.replace(" ", "")}'] = hex_from_expr(value)
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return theme
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def resolve_labels(theme):
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for key, label in theme.items():
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if '@' in label:
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for tmp, value in theme.items():
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if tmp == label[1:]:
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theme[key] = value
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return resolve_labels(theme)
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return theme
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def main():
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""" main """
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gset = Gtk.Settings.get_default()
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themename = gset.get_property("gtk-theme-name")
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css = Gtk.CssProvider.get_named(themename).to_string()
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lines = css.split("\n")
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theme = {}
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# Parse @define-color lines using syntax "@define-color <key> <value>"
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for line in lines:
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if "@define-color" not in line:
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continue
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x = line.split(" ", maxsplit=2)
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theme[x[1]] = hex_from_expr(x[2])
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# Add the color definitions in the headerbar{} and menu{} sections
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theme |= parse_section(lines, "headerbar")
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theme |= parse_section(lines, "menu")
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theme = resolve_labels(theme)
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for key, value in theme.items():
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print(f"{key}: {value}")
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return
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if __name__ == '__main__':
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main()
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