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Diffstat (limited to 'share/extensions/barcode/Ean13.py')
-rw-r--r-- | share/extensions/barcode/Ean13.py | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/share/extensions/barcode/Ean13.py b/share/extensions/barcode/Ean13.py new file mode 100644 index 0000000..2f41a9c --- /dev/null +++ b/share/extensions/barcode/Ean13.py @@ -0,0 +1,43 @@ +# coding=utf-8 +# +# Copyright (C) 2010 Martin Owens +# +# Thanks to Lineaire Chez of Inkbar ( www.inkbar.lineaire.net ) +# +# 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 EAN13 barcodes. Designed for use with Inkscape. +""" + +from .BaseEan import EanBarcode + + +class Ean13(EanBarcode): + """Provide an Ean13 barcode generator""" + name = 'ean13' + extras = {2: 'Ean2', 5: 'Ean5'} + checks = [13] + lengths = [12] + + def _encode(self, num, guide=False): + """Encode an ean13 barcode""" + self.text = self.space(num[0:1], 4, num[1:7], 5, num[7:], 7) + if guide: + self.text = self.text[:-4] + '>' + return self.enclose( + self.encode_interleaved(num[0], num[1:7]), + self.encode_right(num[7:]) + ) |