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wasp-os/tools/themer.py
Daniel Thompson 1eada36ff4 wasp: manager: Byte-swap the theme encoding
Currently the theme is explicitly little endian. This does match the
underlying hardware but makes it needlessly difficult to hand edit
themes. Switch the default theme and theming tools over to big endian
form and add comments to the default theme to support hand editing.

We also expand the ASCII characters in the default them with hex codes.
This is the final step needed to make hand edited themes trivial to work
with.

Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>
2020-12-31 10:09:38 +00:00

89 lines
2.4 KiB
Python
Executable file

#!/usr/bin/env python3
"""Compiles themes for wasp-os"""
from argparse import ArgumentParser, RawTextHelpFormatter
from importlib import import_module
from typing import Tuple
class DefaultTheme():
"""This represents the default theme.
Import this file and extend the Theme class, only changing the variables.
Export the resulting class as 'Theme'.
serialize() should NEVER be overriden!
"""
BLE_COLOR = 0x7bef
SCROLL_INDICATOR_COLOR = 0x7bef
BATTERY_COLOR = 0x7bef
SMALL_CLOCK_COLOR = 0xe73c
NOTIFICATION_COLOR = 0x7bef
ACCENT_MID = 0xb5b6
ACCENT_LO = 0xbdb6
ACCENT_HI = 0xffff
SLIDER_DEFAULT_COLOR = 0x39ff
def serialize(self) -> bytes:
"""Serializes the theme for use in wasp-os"""
def split_bytes(x: int) -> Tuple[int, int]:
return ((x >> 8) & 0xFF, x & 0xFF)
theme_bytes = bytes([
*split_bytes(self.BLE_COLOR),
*split_bytes(self.SCROLL_INDICATOR_COLOR),
*split_bytes(self.BATTERY_COLOR),
*split_bytes(self.SMALL_CLOCK_COLOR),
*split_bytes(self.NOTIFICATION_COLOR),
*split_bytes(self.ACCENT_MID),
*split_bytes(self.ACCENT_LO),
*split_bytes(self.ACCENT_HI),
*split_bytes(self.SLIDER_DEFAULT_COLOR),
])
return theme_bytes
if __name__ == '__main__':
parser = ArgumentParser(
description='''Compiles themes into a format understood by wasp-os.
For the theme to take effect, the resulting string should be put in main.py
like this:
theme_string = THEME_STRING_GOES_HERE
''',
epilog=''' To create a theme, import this file and extend the
DefaultTheme class, only changing the variables.
Export the resulting class as 'Theme'.
Example:
--------
theme.py:
from themer import DefaultTheme
class Theme(DefaultTheme):
BLE_ICON_COLOR = 0x041F
shell:
# NOTE: do not include .py at end of file!
$ ./themer.py theme
> b'\\xef{\\xef{\\xef{<\\xe7\\xef{\\xb6\\xb5\\xb6\\xbd\\xff\\xff\\xff9'
main.py:
...
wasp.system.set_theme(
b'\\xef{\\xef{\\xef{<\\xe7\\xef{\\xb6\\xb5\\xb6\\xbd\\xff\\xff\\xff9')
...
''',
formatter_class=RawTextHelpFormatter
)
parser.add_argument('input_file', type=str, nargs=1)
args = parser.parse_args()
theme = DefaultTheme()
theme = import_module(args.input_file[0]).Theme()
print(theme.serialize())