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import barcode
from barcode.writer import SVGWriter
import os
import platform
import subprocess
import win32print
import win32ui
from ctypes import windll

def get_printers():
    printers = [printer[2] for printer in win32print.EnumPrinters(win32print.PRINTER_ENUM_LOCAL)]
    return printers

def user_select_printer(printers):
    if not printers:
        print("No printers found.")
        return None

    print("List of printers:")
    for i, printer in enumerate(printers, start=1):
        print(f"{i}. {printer}")

    selected_index = int(input("Enter the number of the printer you'd like to use: "))
    return printers[selected_index - 1]

def get_product_code():
    product_code = input("Enter the product code: ")
    return product_code.upper()

def generate_barcode(product_code):
    Code128 = barcode.get_barcode_class('code128')
    barcode_image = Code128(product_code, writer=SVGWriter())
    output_filename = 'temp_barcode.svg'
    barcode_image.save(output_filename)
    return output_filename

def print_barcode(printer, barcode_image):
    # Get the printer DC
    printer_dc = win32ui.CreateDC()
    printer_dc.CreatePrinterDC(printer)
    # Get the page size and image size in pixels
    page_size_mm = (25.4, 54)
    dpi = 300  # Use a fixed DPI value (adjust it according to your printer's DPI)
    page_size_pixels = tuple(int(dpi * page_size_mm[i] / 25.4) for i in (0, 1))
    # Load the SVG image
    with open(barcode_image, 'r') as f:
        svg_data = f.read()
    # Create a new instance of the Image class and set the size
    image = Image.new('RGB', page_size_pixels, (255, 255, 255))
    # Convert the SVG data to a PNG image
    cairosvg.svg2png(bytestring=svg_data, write_to='temp_barcode.png')
    barcode_image = 'temp_barcode.png'
    # Load the PNG image
    png_image = Image.open(barcode_image)
    # Rotate the image by 90 degrees
    png_image = png_image.rotate(90, expand=True)
    png_width, png_height = png_image.size
    # Set the new size directly based on the paper dimensions
    new_size = (300, int(300 * 2.125))
    # Resize the image without maintaining the aspect ratio
    resized_image = png_image.resize(new_size, Image.LANCZOS)
    resized_width, resized_height = resized_image.size
    # Calculate the position to center the image on the page
    x_pos = int((page_size_pixels[0] - resized_width) / 2)
    y_pos = int((page_size_pixels[1] - resized_height) / 2) - 80
    # Start the print job
    printer_dc.StartDoc(barcode_image)
    printer_dc.StartPage()
    # Print the image
    dib = ImageWin.Dib(resized_image)
    dib.draw(printer_dc.GetSafeHdc(), (x_pos, y_pos, resized_width, resized_height))
    # End the print job
    printer_dc.EndPage()
    printer_dc.EndDoc()
    printer_dc.DeleteDC()
    os.remove(barcode_image)
    os.remove('temp_barcode.svg')

def main():
    printers = get_printers()
    selected_printer = user_select_printer(printers)