utils/prog/tqr.py

#!/usr/bin/env python3

"""
QR Code creation from clipboard.

Test this program simply with pipx:

pipx run https://git.sekun.eu/sekun/utils/raw/branch/main/prog/tqr.py

"""

# /// script
# dependencies = [
# "pyqrcode",
# ]
# ///


import tkinter as tk
from tkinter import messagebox

import pyqrcode as qr


def main():

    root = tk.Tk()
    root.title = "Qr code"
    root.state("iconic")
    try:
        data = root.clipboard_get()
    except Exception as e:
        messagebox.showerror("Qr code", f"Cannot get content of clipboard.\n«{e}»")
        exit(1)

    try:
        code = qr.create(data)
    except ValueError as e:
        messagebox.showerror(
            "Qr code", f"Erreur lors de la création du code QR.\n«{e}»"
        )
        exit(1)

    sw = root.winfo_screenwidth()
    sh = root.winfo_screenheight()
    size = min(sw, sh) - 100

    scale = size // (len(code.code[0]) + 8)
    img = tk.BitmapImage(data=code.xbm(scale=scale))
    w = img.width()
    root.geometry(f"{w}x{w}+50+50")
    img.config(background="white")
    label = tk.Label(root, image=img)
    label.pack()

    def empty_clipboard():
        root.clipboard_clear()
        root.destroy()

    root.protocol("WM_DELETE_WINDOW", empty_clipboard)

    root.mainloop()


if __name__ == "__main__":
    main()