1 '''
2 Copyright (C) 2007 Martin Owens
4 Thanks to Lineaire Chez of Inkbar ( www.inkbar.lineaire.net )
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 '''
21 import EAN13
22 from EAN13 import mapLeftFaimly, guardBar, centerBar, mapRight
23 import sys
25 class Object(EAN13.Object):
26 def encode(self, number):
27 result = ''
29 if len(number) < 11 or len(number) > 12 or not number.isdigit():
30 sys.stderr.write("Can not encode '" + number + "' into UPC-A Barcode, Size must be 11 numbers only, and 1 check digit (optional).\n")
31 return
33 if len(number) == 11:
34 number = number + self.getChecksum(number)
35 else:
36 if not self.varifyChecksum(number):
37 sys.stderr.write("EAN13 Checksum not correct for this barcode, omit last charicter to generate new checksum.\n")
38 return
40 result = result + guardBar
42 i = 0
43 for i in range(0,6):
44 result += mapLeftFaimly[0][int(number[i])]
46 result += centerBar
48 for i in range (6,12):
49 result += mapRight[int(number[i])]
51 result = result + guardBar;
53 self.label = number[0] + ' ' + number[1:6] + ' ' + number[6:11] + ' ' + number[11]
54 self.inclabel = self.label
55 return result;
57 def fontSize(self):
58 return '10'