mirror of
https://github.com/9001/copyparty.git
synced 2025-10-10 10:32:19 -06:00
08ebb0b4c9
move copyparty-original code to qrkode.py stolen/qrcodegen.py can be deleted and replaced with system lib this is safe and has minimal affect on functionality; performance will be a tiny bit slower without the vendored copy
113 lines
2.9 KiB
Python
113 lines
2.9 KiB
Python
# coding: utf-8
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from __future__ import print_function, unicode_literals
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import os
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try:
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if os.getenv("PRTY_SYS_ALL") or os.getenv("PRTY_SYS_QRCG"):
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raise ImportError()
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from .stolen.qrcodegen import QrCode
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qrgen = QrCode.encode_binary
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VENDORED = True
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except ImportError:
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VENDORED = False
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from qrcodegen import QrCode
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if os.getenv("PRTY_MODSPEC"):
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from inspect import getsourcefile
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print("PRTY_MODSPEC: qrcode:", getsourcefile(QrCode))
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if True: # pylint: disable=using-constant-test
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import typing
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from typing import Any, Optional, Sequence, Union
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if not VENDORED:
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def _qrgen(data: Union[bytes, Sequence[int]]) -> "QrCode":
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ret = None
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V = QrCode.Ecc
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for e in [V.HIGH, V.QUARTILE, V.MEDIUM, V.LOW]:
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qr = QrCode.encode_binary(data, e)
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qr.size = qr._size
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qr.modules = qr._modules
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if not ret or ret.size > qr.size:
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ret = qr
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return ret
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qrgen = _qrgen
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def qr2txt(qr: QrCode, zoom: int = 1, pad: int = 4) -> str:
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tab = qr.modules
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sz = qr.size
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if sz % 2 and zoom == 1:
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tab.append([False] * sz)
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tab = [[False] * sz] * pad + tab + [[False] * sz] * pad
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tab = [[False] * pad + x + [False] * pad for x in tab]
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rows: list[str] = []
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if zoom == 1:
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for y in range(0, len(tab), 2):
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row = ""
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for x in range(len(tab[y])):
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v = 2 if tab[y][x] else 0
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v += 1 if tab[y + 1][x] else 0
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row += " ▄▀█"[v]
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rows.append(row)
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else:
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for tr in tab:
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row = ""
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for zb in tr:
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row += " █"[int(zb)] * 2
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rows.append(row)
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return "\n".join(rows)
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def qr2png(
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qr: QrCode,
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zoom: int,
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pad: int,
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bg: Optional[tuple[int, int, int]],
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fg: Optional[tuple[int, int, int]],
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ap: str,
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) -> None:
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from PIL import Image
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tab = qr.modules
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sz = qr.size
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psz = sz + pad * 2
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if bg:
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img = Image.new("RGB", (psz, psz), bg)
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else:
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img = Image.new("RGBA", (psz, psz), (0, 0, 0, 0))
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fg = (fg[0], fg[1], fg[2], 255)
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for y in range(sz):
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for x in range(sz):
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if tab[y][x]:
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img.putpixel((x + pad, y + pad), fg)
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if zoom != 1:
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img = img.resize((sz * zoom, sz * zoom), Image.Resampling.NEAREST)
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img.save(ap)
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def qr2svg(qr: QrCode, border: int) -> str:
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parts: list[str] = []
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for y in range(qr.size):
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sy = border + y
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for x in range(qr.size):
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if qr.modules[y][x]:
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parts.append("M%d,%dh1v1h-1z" % (border + x, sy))
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t = """\
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<?xml version="1.0" encoding="UTF-8"?>
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<svg xmlns="http://www.w3.org/2000/svg" version="1.1" viewBox="0 0 {0} {0}" stroke="none">
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<rect width="100%" height="100%" fill="#F7F7F7"/>
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<path d="{1}" fill="#111111"/>
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</svg>
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"""
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return t.format(qr.size + border * 2, " ".join(parts))
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