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'''
Copyright (C) 2007 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
'''
import EAN13
from EAN13 import mapLeftFaimly, guardBar, centerBar, mapRight
import sys
class Object(EAN13.Object):
def encode(self, number):
result = ''
if len(number) < 11 or len(number) > 12 or not number.isdigit():
sys.stderr.write("Can not encode '" + number + "' into UPC-A Barcode, Size must be 11 numbers only, and 1 check digit (optional).\n")
return
if len(number) == 11:
number = number + self.getChecksum(number)
else:
if not self.verifyChecksum(number):
sys.stderr.write("UPC-A Checksum not correct for this barcode, omit last character to generate new checksum.\n")
return
result = result + guardBar
i = 0
for i in range(0,6):
result += mapLeftFaimly[0][int(number[i])]
result += centerBar
for i in range (6,12):
result += mapRight[int(number[i])]
result = result + guardBar;
self.label = number[0] + ' ' + number[1:6] + ' ' + number[6:11] + ' ' + number[11]
self.inclabel = self.label
return result;
def fontSize(self):
return '10'
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