#
# Copyright (C) 2007 Martin Owens
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA.
#
"""
Python barcode renderer for UPCA barcodes. Designed for use with Inkscape.
"""
from .BaseEan import EanBarcode
class Upca(EanBarcode):
"""Provides a renderer for EAN12 aka UPC-A Barcodes"""
name = 'upca'
font_size = 10
lengths = [11]
checks = [12]
def _encode(self, n):
"""Encode for a UPC-A Barcode"""
self.text = self.space(n[0:1], 3, n[1:6], 4, n[6:11], 3, n[11:])
return self.enclose(self.encode_left(n[0:6]), self.encode_right(n[6:12]))