home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Chip 2011 November
/
CHIP_2011_11.iso
/
Programy
/
Narzedzia
/
Inkscape
/
Inkscape-0.48.2-1-win32.exe
/
share
/
extensions
/
Barcode
/
EAN5.py
< prev
next >
Wrap
Text File
|
2011-07-08
|
3KB
|
68 lines
'''
Copyright (C) 2007 Martin Owens
Copyright (C) 2009 Aaron C Spike
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
'''
from Base import Barcode
import sys
mapLeftFamily = [
[ "0001101","0011001","0010011","0111101","0100011","0110001","0101111","0111011","0110111","0001011" ], #L
[ "0100111","0110011","0011011","0100001","0011101","0111001","0000101","0010001","0001001","0010111" ], #G
]
mapFamily = [ '11000','10100','10010','10001','01100','00110','00011','01010','01001','00101' ]
startBar = '01011';
sepBar = '01';
class Object(Barcode):
def encode(self, number):
result = []
self.x += 110.0 # horizontal offset so it does not overlap EAN13
self.y -= self.height + 5 # move the text to the top
if len(number) != 5 or not number.isdigit():
sys.stderr.write("Can not encode '" + number + "' into EAN5 Barcode, Size must be 5 numbers only\n")
return
check = self.getChecksum(number)
family = mapFamily[check]
for i in range(5):
mapLeft = mapLeftFamily[int(family[i])]
result.append(mapLeft[int(number[i])])
self.label = number[0]
for i in range(1,5):
self.label += ' ' + number[i]
self.inclabel = self.label
return startBar + '01'.join(result)
def getChecksum(self, number):
return sum([int(n)*int(m) for n,m in zip(number, '39393')]) % 10
def getStyle(self, index):
result = { 'width' : '1', 'top' : int(self.y) + self.height + 5 + int(self.fontSize()), 'write' : True }
if index==0: # White Space
result['write'] = False
elif index==1: # Black Bar
result['height'] = int(self.height)
elif index==2: # Guide Bar
result['height'] = int(self.height) + 5
return result