130 lines
4.3 KiB
Python
130 lines
4.3 KiB
Python
import tkinter as tk
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from tkinter import simpledialog, messagebox, ttk
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from PIL import Image, ImageTk, ImageDraw, ImageFont
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import barcode
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from barcode.writer import ImageWriter
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import cups
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import os
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def get_printers():
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conn = cups.Connection()
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return list(conn.getPrinters().keys())
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def print_label(printer_name, text):
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# Generate barcode image without text
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CODE128 = barcode.get_barcode_class('code128')
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code = CODE128(text, writer=ImageWriter())
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filename = code.save('label_barcode', options={"write_text": False})
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# Load barcode image
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barcode_img = Image.open(filename)
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# Set font path (adjust if needed)
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try:
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font = ImageFont.truetype("arialbd.ttf", 32) # Arial Black, 24pt
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except IOError:
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font = ImageFont.load_default()
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# Calculate text size
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draw = ImageDraw.Draw(barcode_img)
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text_width, text_height = draw.textbbox((0, 0), text, font=font)[2:]
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# Create label image with extra space for text
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label_height = barcode_img.height + text_height + 10
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label_img = Image.new('RGB', (barcode_img.width, label_height), 'white')
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label_img.paste(barcode_img, (0, 0))
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# Draw text centered under barcode
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draw = ImageDraw.Draw(label_img)
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x = (barcode_img.width - text_width) // 2
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y = barcode_img.height + 5
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draw.text((x, y), text, font=font, fill='black')
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label_img.save('final_label.png')
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# Print using CUPS
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conn = cups.Connection()
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conn.printFile(printer_name, 'final_label.png', "Label Print", {})
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os.remove(filename)
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os.remove('final_label.png')
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def show_preview(image_path):
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preview = tk.Toplevel()
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preview.title("Label Preview")
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img = Image.open(image_path)
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img_tk = ImageTk.PhotoImage(img)
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label = tk.Label(preview, image=img_tk)
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label.image = img_tk # Keep reference
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label.pack()
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btn = tk.Button(preview, text="Print", command=preview.destroy)
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btn.pack()
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preview.grab_set()
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preview.wait_window()
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def select_printer(printers):
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dialog = tk.Toplevel()
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dialog.title("Select Printer")
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tk.Label(dialog, text="Select a printer:").pack(padx=10, pady=5)
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printer_var = tk.StringVar()
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combo = ttk.Combobox(dialog, textvariable=printer_var, values=printers, state="readonly")
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combo.pack(padx=10, pady=5)
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combo.current(0)
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selected = {'printer': None}
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def on_ok():
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selected['printer'] = printer_var.get()
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dialog.destroy()
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btn = tk.Button(dialog, text="OK", command=on_ok)
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btn.pack(pady=10)
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dialog.grab_set()
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dialog.wait_window()
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return selected['printer']
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def main():
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root = tk.Tk()
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root.withdraw()
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printers = get_printers()
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if not printers:
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messagebox.showerror("Error", "No printers found.")
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return
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printer = select_printer(printers)
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if not printer:
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messagebox.showerror("Error", "No printer selected.")
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return
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text = simpledialog.askstring("Label Text", "Enter text for the label:")
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if not text:
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messagebox.showerror("Error", "No text entered.")
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return
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# Generate label image for preview
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CODE128 = barcode.get_barcode_class('code128')
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code = CODE128(text, writer=ImageWriter())
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filename = code.save('label_barcode', options={"write_text": False})
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barcode_img = Image.open(filename)
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# Set font path (adjust if needed)
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try:
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font = ImageFont.truetype("arialbd.ttf", 32) # Arial Black, 24pt
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except IOError:
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font = ImageFont.load_default()
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# Calculate text size
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draw = ImageDraw.Draw(barcode_img)
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text_width, text_height = draw.textbbox((0, 0), text, font=font)[2:]
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# Create label image with extra space for text
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label_height = barcode_img.height + text_height + 10
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label_img = Image.new('RGB', (barcode_img.width, label_height), 'white')
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label_img.paste(barcode_img, (0, 0))
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# Draw text centered under barcode
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draw = ImageDraw.Draw(label_img)
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x = (barcode_img.width - text_width) // 2
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y = barcode_img.height + 5
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draw.text((x, y), text, font=font, fill='black')
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label_img.save('final_label.png')
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os.remove(filename)
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# Show preview window
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show_preview('final_label.png')
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# Print after preview
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print_label(printer, text)
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messagebox.showinfo("Done", "Label sent to printer.")
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os.remove('final_label.png')
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if __name__ == "__main__":
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main() |