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- #!/usr/bin/env python
- """print_label.py - print a label with the name, the company and the person_id (in a barcode) of an attendee
- Copyright 2015 Emiliano Mattioli <oloturia AT gmail.com>
- Davide Alberani <da@erlug.linux.it>
- RaspiBO <info@raspibo.org>
- Licensed under the Apache License 2.0
- """
- import os
- import sys
- import cups
- import tempfile
- from PIL import Image, ImageFont, ImageDraw
- KEEP_IMG = True
- LABEL_WIDTH = 13488
- LABEL_HEIGHT = 3744
- FONT_TEXT = 'Ubuntu-C.ttf'
- FONT_TEXT = 'CONCIBB_.TTF'
- FONT_TEXT_ENCODING = 'latin-1'
- FONT_BARCODE = 'free3of9.ttf'
- PRINTER_NAME = None
- #PRINTER_NAME = 'DYMO_LabelWriter_450'
- def _get_resource(filename):
- return os.path.join(os.path.dirname(sys.argv[0]), filename)
- def build_label(w, h, barcode_text, line1, line2, font_text=FONT_TEXT, font_barcode=FONT_BARCODE):
- barcode_text = "*" + barcode_text + "*"
- line1 = unicode(line1, 'utf-8').encode(FONT_TEXT_ENCODING, 'ignore')
- line2 = unicode(line2, 'utf-8').encode(FONT_TEXT_ENCODING, 'ignore')
- fontbar = ImageFont.truetype(_get_resource(font_barcode), 2000)
- fontname = ImageFont.truetype(_get_resource(font_text), 1100)
- fontjob = ImageFont.truetype(_get_resource(font_text), 780)
- image = Image.new('RGB', (w, h), (255, 255, 255))
- draw = ImageDraw.Draw(image)
- wbar, hbar = draw.textsize(barcode_text, font=fontbar)
- wnorm1, hnorm1 = draw.textsize(line1, font=fontname)
- wnorm2, hnorm2 = draw.textsize(line2, font=fontjob)
- draw.text(((w-wnorm1)/2, -1300+(h-hnorm1)/2), line1, (0, 0, 0), font=fontname)
- draw.text(((w-wnorm2)/2, -480+(h-hnorm2)/2), line2, (0, 0, 0), font=fontjob)
- draw.text(((w-wbar)/2, 850+(h-hbar)/2), barcode_text, (0, 0, 0), font=fontbar)
- if not KEEP_IMG:
- tmpfile = tempfile.NamedTemporaryFile(prefix='eventman_print_label_', suffix='.png')
- else:
- tmpfile = tempfile.mktemp(prefix='eventman_print_label_', suffix='.png')
- tmpfile = open(tmpfile, 'wb')
- image.save(tmpfile, dpi=[600, 300], format='png')
- return tmpfile
- def print_label(label_file, name):
- conn = cups.Connection()
- printer = PRINTER_NAME or conn.getDefault()
- conn.printFile(printer, label_file.name, name, {})
- def run():
- # Always consume stdin.
- sys.stdin.read()
- name = ' '.join([os.environ.get('NAME') or '', os.environ.get('SURNAME') or ''])
- company = os.environ.get('COMPANY') or ''
- # Print the decimal value SEQ as an hex of at least 6 digits.
- seq = os.environ.get('SEQ_HEX', '0')
- label_file = build_label(LABEL_WIDTH, LABEL_HEIGHT, seq, name, company)
- print_label(label_file, name)
- if __name__ == '__main__':
- try:
- run()
- except Exception, e:
- sys.stderr.write('print_label. Exception raised: %s\n' % e)
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