50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
# coding=utf-8
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#
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# Copyright (C) 2009 Aaron C Spike
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# 2010 Martin Owens
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA.
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#
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"""
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Python barcode renderer for EAN5 barcodes. Designed for use with Inkscape.
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"""
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from .BaseEan import EanBarcode
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FAMS = [
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"11000",
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"10100",
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"10010",
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"10001",
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"01100",
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"00110",
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"00011",
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"01010",
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"01001",
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"00101",
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]
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START = "01011"
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class Ean5(EanBarcode):
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"""Provide an Ean5 barcode generator"""
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name = "ean5"
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length = 5
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def _encode(self, num, guide=False):
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self.text = " ".join(EanBarcode.space(num))
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family = sum([int(n) * int(m) for n, m in zip(num, "39393")]) % 10
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return START + "01".join(EanBarcode.encode_interleaved(family, num, FAMS))
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