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'''
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
'''
from Base import Barcode
encoding = {
'0' : '000110100',
'1' : '100100001',
'2' : '001100001',
'3' : '101100000',
'4' : '000110001',
'5' : '100110000',
'6' : '001110000',
'7' : '000100101',
'8' : '100100100',
'9' : '001100100',
'A' : '100001001',
'B' : '001001001',
'C' : '101001000',
'D' : '000011001',
'E' : '100011000',
'F' : '001011000',
'G' : '000001101',
'H' : '100001100',
'I' : '001001100',
'J' : '000011100',
'K' : '100000011',
'L' : '001000011',
'M' : '101000010',
'N' : '000010011',
'O' : '100010010',
'P' : '001010010',
'Q' : '000000111',
'R' : '100000110',
'S' : '001000110',
'T' : '000010110',
'U' : '110000001',
'V' : '011000001',
'W' : '111000000',
'X' : '010010001',
'Y' : '110010000',
'Z' : '011010000',
'-' : '010000101',
'*' : '010010100',
'+' : '010001010',
'$' : '010101000',
'%' : '000101010',
'/' : '010100010',
'.' : '110000100',
' ' : '011000100',
}
class Object(Barcode):
# Convert a text into string binary of black and white markers
def encode(self, text):
text = text.upper()
self.label = text
text = '*' + text + '*'
result = ''
# It isposible for us to encode code39
# into full ascii, but this feature is
# not enabled here
for char in text:
if not encoding.has_key(char):
char = '-';
result = result + encoding[char] + '0';
# Now we need to encode the code39, best read
# the code to understand what it's up to:
encoded = '';
colour = '1'; # 1 = Black, 0 = White
for data in result:
if data == '1':
encoded = encoded + colour + colour
else:
encoded = encoded + colour
if colour == '1':
colour = '0'
else:
colour = '1'
self.inclabel = text
return encoded;
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