Package nicelier

This commit is contained in:
James Wah 2021-07-02 21:10:47 +10:00
parent 6d7075f433
commit 378ed9a56a
2 changed files with 38 additions and 13 deletions

View file

@ -1,9 +1,17 @@
#!/usr/bin/env python3
import tspl
import pdf2tspl
import socket
import logging
import tempfile
import sys
if len(sys.argv) != 2:
print("Usage: %s /dev/path/to/printer" % sys.argv[0])
sys.exit(1)
printer = sys.argv[1]
open(printer, 'wb').close()
logging.basicConfig(level=logging.DEBUG)
@ -37,7 +45,10 @@ def accept_one_job(sock):
with tempfile.NamedTemporaryFile(suffix=".pdf") as pdffile:
pdffile.write(pdf_data)
pdffile.flush()
tspl.print_pdf(pdffile.name)
tspl = pdf2tspl.pdf2tspl(pdffile.name)
with open(printer, 'wb') as fp:
fp.write(tspl)
logging.info('Job complete')

View file

@ -43,7 +43,7 @@ def convert_pdf_scaled(pdfname, max_width, max_height):
return im
def pdf2tspl(filename, labelwidth_mm=100, labelheight_mm=150, dpi=203):
def pdf2tspl(filename, labelwidth_mm=100, labelheight_mm=150, dpi=203.2):
labelwidth = int(round(labelwidth_mm / 25.4 * dpi))
labelheight = int(round(labelheight_mm / 25.4 * dpi))
@ -53,16 +53,30 @@ def pdf2tspl(filename, labelwidth_mm=100, labelheight_mm=150, dpi=203):
paste_y = (labelheight - image.height) // 2
row_bytes = (image.width + 7) // 8
command = b"\r\n\r\nSIZE %d mm\r\nCLS\r\nBITMAP %d,%d,%d,%d,0," % (labelwidth_mm, paste_x, paste_y, row_bytes, image.height)
command += image.data
command += b"\r\nPRINT 1,1\r\n"
return command
def print_pdf(filename):
cmd = pdf2tspl(filename)
with open("/dev/usb/lp0", "r+b") as prn:
prn.write(cmd)
tspl = b"\r\n\r\nSIZE %d mm,%d mm\r\nCLS\r\nBITMAP %d,%d,%d,%d,0," % (labelwidth_mm, labelheight_mm, paste_x, paste_y, row_bytes, image.height)
tspl += image.data
tspl += b"\r\nPRINT 1,1\r\n"
return tspl
if __name__ == "__main__":
import argparse
import sys
print_pdf(sys.argv[1])
parser = argparse.ArgumentParser(description='Convert a PDF to TSPL to send to a label printer.')
parser.add_argument('pdf_file', help='The PDF to convert.')
parser.add_argument('tspl_file', help='The file or device to write the TSPL code to. Can be a printer device eg. /dev/usb/lp0, or specify "-" to write to stdout.')
parser.add_argument('-x', '--width', type=int, default=100, help='The width of the label, in millimetres.')
parser.add_argument('-y', '--height', type=int, default=150, help='The height of the label, in millimetres.')
parser.add_argument('-d', '--dpi', type=float, default=203.2, help='Resolution of the printer. Defaults to 8 dots per mm (203.2 dpi)')
args = parser.parse_args()
tspl = pdf2tspl(args.pdf_file,
labelwidth_mm=args.width,
labelheight_mm=args.height,
dpi=args.dpi)
if args.tspl_file == '-':
sys.stdout.buffer.write(tspl)
else:
with open(args.tspl_file, 'wb') as fp:
fp.write(tspl)