![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
index 3cb79b4879ddbc2f6dcde07fa470d9341a7f653b..3036b5f98ca086e0794edda23504422fdfc81bed 100644 (file)
-#!/usr/bin/env python
-'''
-Copyright (C) 2007 Martin Owens
-
-Debugged by Ralf Heinecke & Martin Siepmann 09/07/2007
-Debugged by Horst Schottky Feb. 27. 2010
-
-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
-
-
-
-'''
+#
+# Authored by Martin Owens <doctormo@ubuntu.com>
+# Debugged by Ralf Heinecke & Martin Siepmann 2007-09-07
+# Horst Schottky 2010-02-27
+#
+# 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
+#
+"""
+Python barcode renderer for Code128/EAN128 barcodes. Designed for use with Inkscape.
+"""
from Base import Barcode
import math
map = [ '11011001100','11001101100','11001100110','10010011000','10010001100','10001001100','10011001000','10011000100','10001100100','11001001000','11001000100','11000100100','10110011100','10011011100','10011001110','10111001100','10011101100','10011100110','11001110010','11001011100','11001001110','11011100100','11001110100','11101101110','11101001100','11100101100','11100100110','11101100100','11100110100','11100110010','11011011000','11011000110','11000110110','10100011000','10001011000','10001000110','10110001000','10001101000','10001100010','11010001000','11000101000','11000100010','10110111000','10110001110','10001101110','10111011000','10111000110','10001110110','11101110110','11010001110','11000101110','11011101000','11011100010','11011101110','11101011000','11101000110','11100010110','11101101000','11101100010','11100011010','11101111010','11001000010','11110001010','10100110000','10100001100','10010110000','10010000110','10000101100','10000100110','10110010000','10110000100','10011010000','10011000010','10000110100','10000110010','11000010010','11001010000','11110111010','11000010100','10001111010','10100111100','10010111100','10010011110','10111100100','10011110100','10011110010','11110100100','11110010100','11110010010','11011011110','11011110110','11110110110','10101111000','10100011110','10001011110','10111101000','10111100010','11110101000','11110100010','10111011110','10111101110','11101011110','11110101110','11010000100','11010010000','11010011100','11000111010','11' ]
def mapExtra(sd, chars):
- result = list(sd)
- for char in chars:
- result.append(chr(char))
- result.append('FNC3')
- result.append('FNC2')
- result.append('SHIFT')
- return result
+ result = list(sd)
+ for char in chars:
+ result.append(chr(char))
+ result.append('FNC3')
+ result.append('FNC2')
+ result.append('SHIFT')
+ return result
# The mapExtra method is used to slim down the amount
# of pre code and instead we generate the lists
charB = mapExtra(charAB, range(96, 125)) # Offset -32
class Object(Barcode):
- def encode(self, text):
- result = ''
- blocks = []
- block = ''
-
- # Split up into sections of numbers, or charicters
- # This makes sure that all the charicters are encoded
- # In the best way posible for Code128
- for datum in re.findall(r'(?:(?:\d\d){2,})|(?:^\d\d)|.', text):
- if len(datum) == 1:
- block = block + datum
- else:
- if block:
- blocks.append(self.bestBlock(block))
- block = ''
- blocks.append( [ 'C', datum ] )
-
- if block:
- blocks.append(self.bestBlock(block))
- block = '';
-
- self.inclabel = text
- return self.encodeBlocks(blocks)
-
- def bestBlock(self, block):
- # If this has lower case then select B over A
- if block.upper() == block:
- return [ 'A', block ]
- return [ 'B', block ]
-
- def encodeBlocks(self, blocks):
- total = 0
- pos = 0
- encode = '';
-
- for block in blocks:
- set = block[0]
- datum = block[1]
-
- # POS : 0, 1
- # A : 101, 103
- # B : 100, 104
- # C : 99, 105
- num = 0;
- if set == 'A':
- num = 103
- elif set == 'B':
- num = 104
- elif set == 'C':
- num = 105
-
- i = pos
- if pos:
- num = 204 - num
- else:
- i = 1
-
- total = total + num * i
- encode = encode + map[num]
- pos = pos + 1
-
- if set == 'A' or set == 'B':
- chars = charB
- if set == 'A':
- chars = charA
-
- for char in datum:
- total = total + (chars.index(char) * pos)
- encode = encode + map[chars.index(char)]
- pos = pos + 1
- else:
- for char in (datum[i:i+2] for i in range(0, len(datum), 2)):
- total = total + (int(char) * pos)
- encode = encode + map[int(char)]
- pos = pos + 1
-
- checksum = total % 103
- encode = encode + map[checksum]
- encode = encode + map[106]
- encode = encode + map[107]
-
- return encode
+ def encode(self, text):
+ result = ''
+ blocks = []
+ block = ''
+
+ # Split up into sections of numbers, or charicters
+ # This makes sure that all the charicters are encoded
+ # In the best way posible for Code128
+ for datum in re.findall(r'(?:(?:\d\d){2,})|(?:^\d\d)|.', text):
+ if len(datum) == 1:
+ block = block + datum
+ else:
+ if block:
+ blocks.append(self.bestBlock(block))
+ block = ''
+ blocks.append( [ 'C', datum ] )
+
+ if block:
+ blocks.append(self.bestBlock(block))
+ block = '';
+
+ self.inclabel = text
+ return self.encodeBlocks(blocks)
+
+ def bestBlock(self, block):
+ # If this has lower case then select B over A
+ if block.upper() == block:
+ return [ 'A', block ]
+ return [ 'B', block ]
+
+ def encodeBlocks(self, blocks):
+ total = 0
+ pos = 0
+ encode = '';
+
+ for block in blocks:
+ set = block[0]
+ datum = block[1]
+
+ # POS : 0, 1
+ # A : 101, 103
+ # B : 100, 104
+ # C : 99, 105
+ num = 0;
+ if set == 'A':
+ num = 103
+ elif set == 'B':
+ num = 104
+ elif set == 'C':
+ num = 105
+
+ i = pos
+ if pos:
+ num = 204 - num
+ else:
+ i = 1
+
+ total = total + num * i
+ encode = encode + map[num]
+ pos = pos + 1
+
+ if set == 'A' or set == 'B':
+ chars = charB
+ if set == 'A':
+ chars = charA
+
+ for char in datum:
+ total = total + (chars.index(char) * pos)
+ encode = encode + map[chars.index(char)]
+ pos = pos + 1
+ else:
+ for char in (datum[i:i+2] for i in range(0, len(datum), 2)):
+ total = total + (int(char) * pos)
+ encode = encode + map[int(char)]
+ pos = pos + 1
+
+ checksum = total % 103
+ encode = encode + map[checksum]
+ encode = encode + map[106]
+ encode = encode + map[107]
+
+ return encode