%PDF-
%PDF-
Mini Shell
Mini Shell
__all__=(
'Ean13BarcodeWidget','isEanString',
'Ean8BarcodeWidget', 'UPCA', 'Ean5BarcodeWidget', 'ISBNBarcodeWidget',
)
from reportlab.graphics.shapes import Group, String, Rect
from reportlab.lib import colors
from reportlab.pdfbase.pdfmetrics import stringWidth
from reportlab.lib.validators import isNumber, isColor, isString, Validator, isBoolean, NoneOr
from reportlab.lib.attrmap import *
from reportlab.graphics.charts.areas import PlotArea
from reportlab.lib.units import mm
from reportlab.lib.utils import asNative
#work out a list of manufacturer codes....
_eanNumberSystems = [
('00-13', 'USA & Canada'),
('20-29', 'In-Store Functions'),
('30-37', 'France'),
('40-44', 'Germany'),
('45', 'Japan (also 49)'),
('46', 'Russian Federation'),
('471', 'Taiwan'),
('474', 'Estonia'),
('475', 'Latvia'),
('477', 'Lithuania'),
('479', 'Sri Lanka'),
('480', 'Philippines'),
('482', 'Ukraine'),
('484', 'Moldova'),
('485', 'Armenia'),
('486', 'Georgia'),
('487', 'Kazakhstan'),
('489', 'Hong Kong'),
('49', 'Japan (JAN-13)'),
('50', 'United Kingdom'),
('520', 'Greece'),
('528', 'Lebanon'),
('529', 'Cyprus'),
('531', 'Macedonia'),
('535', 'Malta'),
('539', 'Ireland'),
('54', 'Belgium & Luxembourg'),
('560', 'Portugal'),
('569', 'Iceland'),
('57', 'Denmark'),
('590', 'Poland'),
('594', 'Romania'),
('599', 'Hungary'),
('600-601', 'South Africa'),
('609', 'Mauritius'),
('611', 'Morocco'),
('613', 'Algeria'),
('619', 'Tunisia'),
('622', 'Egypt'),
('625', 'Jordan'),
('626', 'Iran'),
('64', 'Finland'),
('690-692', 'China'),
('70', 'Norway'),
('729', 'Israel'),
('73', 'Sweden'),
('740', 'Guatemala'),
('741', 'El Salvador'),
('742', 'Honduras'),
('743', 'Nicaragua'),
('744', 'Costa Rica'),
('746', 'Dominican Republic'),
('750', 'Mexico'),
('759', 'Venezuela'),
('76', 'Switzerland'),
('770', 'Colombia'),
('773', 'Uruguay'),
('775', 'Peru'),
('777', 'Bolivia'),
('779', 'Argentina'),
('780', 'Chile'),
('784', 'Paraguay'),
('785', 'Peru'),
('786', 'Ecuador'),
('789', 'Brazil'),
('80-83', 'Italy'),
('84', 'Spain'),
('850', 'Cuba'),
('858', 'Slovakia'),
('859', 'Czech Republic'),
('860', 'Yugloslavia'),
('869', 'Turkey'),
('87', 'Netherlands'),
('880', 'South Korea'),
('885', 'Thailand'),
('888', 'Singapore'),
('890', 'India'),
('893', 'Vietnam'),
('899', 'Indonesia'),
('90-91', 'Austria'),
('93', 'Australia'),
('94', 'New Zealand'),
('955', 'Malaysia'),
('977', 'International Standard Serial Number for Periodicals (ISSN)'),
('978', 'International Standard Book Numbering (ISBN)'),
('979', 'International Standard Music Number (ISMN)'),
('980', 'Refund receipts'),
('981-982', 'Common Currency Coupons'),
('99', 'Coupons')
]
manufacturerCodes = {}
for (k, v) in _eanNumberSystems:
words = k.split('-')
if len(words)==2:
fromCode = int(words[0])
toCode = int(words[1])
for code in range(fromCode, toCode+1):
manufacturerCodes[code] = v
else:
manufacturerCodes[int(k)] = v
def nDigits(n):
class _ndigits(Validator):
def test(self,x):
return type(x) is str and len(x)<=n and len([c for c in x if c in "0123456789"])==n
return _ndigits()
class Ean13BarcodeWidget(PlotArea):
codeName = "EAN13"
_attrMap = AttrMap(BASE=PlotArea,
value = AttrMapValue(nDigits(12), desc='the number'),
fontName = AttrMapValue(isString, desc='fontName'),
fontSize = AttrMapValue(isNumber, desc='font size'),
x = AttrMapValue(isNumber, desc='x-coord'),
y = AttrMapValue(isNumber, desc='y-coord'),
barFillColor = AttrMapValue(isColor, desc='bar color'),
barHeight = AttrMapValue(isNumber, desc='Height of bars.'),
barWidth = AttrMapValue(isNumber, desc='Width of bars.'),
barStrokeWidth = AttrMapValue(isNumber, desc='Width of bar borders.'),
barStrokeColor = AttrMapValue(isColor, desc='Color of bar borders.'),
textColor = AttrMapValue(isColor, desc='human readable text color'),
humanReadable = AttrMapValue(isBoolean, desc='if human readable'),
quiet = AttrMapValue(isBoolean, desc='if quiet zone to be used'),
lquiet = AttrMapValue(isBoolean, desc='left quiet zone length'),
rquiet = AttrMapValue(isBoolean, desc='right quiet zone length'),
)
_digits=12
_start_right = 7 #for ean-13 left = [0:7] right=[7:13]
_nbars = 113
barHeight = 25.93*mm #millimeters
barWidth = (37.29/_nbars)*mm
humanReadable = 1
_0csw = 1
_1csw = 3
#Left Hand Digits.
_left = ( ("0001101", "0011001", "0010011", "0111101",
"0100011", "0110001", "0101111", "0111011",
"0110111", "0001011",
), #odd left hand digits
("0100111", "0110011", "0011011", "0100001",
"0011101", "0111001", "0000101", "0010001",
"0001001", "0010111"), #even left hand digits
)
_right = ("1110010", "1100110", "1101100", "1000010",
"1011100", "1001110", "1010000", "1000100",
"1001000", "1110100")
quiet = 1
rquiet = lquiet = None
_tail = "101"
_sep = "01010"
_lhconvert={
"0": (0,0,0,0,0,0),
"1": (0,0,1,0,1,1),
"2": (0,0,1,1,0,1),
"3": (0,0,1,1,1,0),
"4": (0,1,0,0,1,1),
"5": (0,1,1,0,0,1),
"6": (0,1,1,1,0,0),
"7": (0,1,0,1,0,1),
"8": (0,1,0,1,1,0),
"9": (0,1,1,0,1,0)
}
fontSize = 8 #millimeters
fontName = 'Helvetica'
textColor = barFillColor = colors.black
barStrokeColor = None
barStrokeWidth = 0
x = 0
y = 0
def __init__(self,value='123456789012',**kw):
value = str(value) if isinstance(value,int) else asNative(value)
self.value=max(self._digits-len(value),0)*'0'+value[:self._digits]
for k, v in kw.items():
setattr(self, k, v)
width = property(lambda self: self.barWidth*(self._nbars-18+self._calc_quiet(self.lquiet)+self._calc_quiet(self.rquiet)))
def wrap(self,aW,aH):
return self.width,self.barHeight
def _encode_left(self,s,a):
cp = self._lhconvert[s[0]] #convert the left hand numbers
_left = self._left
z = ord('0')
for i,c in enumerate(s[1:self._start_right]):
a(_left[cp[i]][ord(c)-z])
def _short_bar(self,i):
i += 9 - self._lquiet
return self.humanReadable and ((12<i<55) or (57<i<101))
def _calc_quiet(self,v):
if self.quiet:
if v is None:
v = 9
else:
x = float(max(v,0))/self.barWidth
v = int(x)
if v-x>0: v += 1
else:
v = 0
return v
def draw(self):
g = Group()
gAdd = g.add
barWidth = self.barWidth
width = self.width
barHeight = self.barHeight
x = self.x
y = self.y
gAdd(Rect(x,y,width,barHeight,fillColor=None,strokeColor=None,strokeWidth=0))
s = self.value+self._checkdigit(self.value)
self._lquiet = lquiet = self._calc_quiet(self.lquiet)
rquiet = self._calc_quiet(self.rquiet)
b = [lquiet*'0',self._tail] #the signal string
a = b.append
self._encode_left(s,a)
a(self._sep)
z = ord('0')
_right = self._right
for c in s[self._start_right:]:
a(_right[ord(c)-z])
a(self._tail)
a(rquiet*'0')
fontSize = self.fontSize
barFillColor = self.barFillColor
barStrokeWidth = self.barStrokeWidth
barStrokeColor = self.barStrokeColor
fth = fontSize*1.2
b = ''.join(b)
lrect = None
for i,c in enumerate(b):
if c=="1":
dh = self._short_bar(i) and fth or 0
yh = y+dh
if lrect and lrect.y==yh:
lrect.width += barWidth
else:
lrect = Rect(x,yh,barWidth,barHeight-dh,fillColor=barFillColor,strokeWidth=barStrokeWidth,strokeColor=barStrokeColor)
gAdd(lrect)
else:
lrect = None
x += barWidth
if self.humanReadable: self._add_human_readable(s,gAdd)
return g
def _add_human_readable(self,s,gAdd):
barWidth = self.barWidth
fontSize = self.fontSize
textColor = self.textColor
fontName = self.fontName
fth = fontSize*1.2
# draw the num below the line.
c = s[0]
w = stringWidth(c,fontName,fontSize)
x = self.x+barWidth*(self._lquiet-8)
y = self.y + 0.2*fth
gAdd(String(x,y,c,fontName=fontName,fontSize=fontSize,fillColor=textColor))
x = self.x + (33-9+self._lquiet)*barWidth
c = s[1:7]
gAdd(String(x,y,c,fontName=fontName,fontSize=fontSize,fillColor=textColor,textAnchor='middle'))
x += 47*barWidth
c = s[7:]
gAdd(String(x,y,c,fontName=fontName,fontSize=fontSize,fillColor=textColor,textAnchor='middle'))
def _checkdigit(cls,num):
z = ord('0')
iSum = cls._0csw*sum([(ord(x)-z) for x in num[::2]]) \
+ cls._1csw*sum([(ord(x)-z) for x in num[1::2]])
return chr(z+((10-(iSum%10))%10))
_checkdigit=classmethod(_checkdigit)
class Ean8BarcodeWidget(Ean13BarcodeWidget):
codeName = "EAN8"
_attrMap = AttrMap(BASE=Ean13BarcodeWidget,
value = AttrMapValue(nDigits(7), desc='the number'),
)
_start_right = 4 #for ean-13 left = [0:7] right=[7:13]
_nbars = 85
_digits=7
_0csw = 3
_1csw = 1
def _encode_left(self,s,a):
cp = self._lhconvert[s[0]] #convert the left hand numbers
_left = self._left[0]
z = ord('0')
for i,c in enumerate(s[0:self._start_right]):
a(_left[ord(c)-z])
def _short_bar(self,i):
i += 9 - self._lquiet
return self.humanReadable and ((12<i<41) or (43<i<73))
def _add_human_readable(self,s,gAdd):
barWidth = self.barWidth
fontSize = self.fontSize
textColor = self.textColor
fontName = self.fontName
fth = fontSize*1.2
# draw the num below the line.
y = self.y + 0.2*fth
x = (26.5-9+self._lquiet)*barWidth
c = s[0:4]
gAdd(String(x,y,c,fontName=fontName,fontSize=fontSize,fillColor=textColor,textAnchor='middle'))
x = (59.5-9+self._lquiet)*barWidth
c = s[4:]
gAdd(String(x,y,c,fontName=fontName,fontSize=fontSize,fillColor=textColor,textAnchor='middle'))
class UPCA(Ean13BarcodeWidget):
codeName = "UPCA"
_attrMap = AttrMap(BASE=Ean13BarcodeWidget,
value = AttrMapValue(nDigits(11), desc='the number'),
)
_start_right = 6
_digits = 11
_0csw = 3
_1csw = 1
_nbars = 1+7*11+2*3+5
#these methods contributed by Kyle Macfarlane
#https://bitbucket.org/kylemacfarlane/
def _encode_left(self,s,a):
cp = self._lhconvert[s[0]] #convert the left hand numbers
_left = self._left[0]
z = ord('0')
for i,c in enumerate(s[0:self._start_right]):
a(_left[ord(c)-z])
def _short_bar(self,i):
i += 9 - self._lquiet
return self.humanReadable and ((18<i<55) or (57<i<93))
def _add_human_readable(self,s,gAdd):
barWidth = self.barWidth
fontSize = self.fontSize
textColor = self.textColor
fontName = self.fontName
fth = fontSize*1.2
# draw the num below the line.
c = s[0]
w = stringWidth(c,fontName,fontSize)
x = self.x+barWidth*(self._lquiet-8)
y = self.y + 0.2*fth
gAdd(String(x,y,c,fontName=fontName,fontSize=fontSize,fillColor=textColor))
x = self.x + (38-9+self._lquiet)*barWidth
c = s[1:6]
gAdd(String(x,y,c,fontName=fontName,fontSize=fontSize,fillColor=textColor,textAnchor='middle'))
x += 36*barWidth
c = s[6:11]
gAdd(String(x,y,c,fontName=fontName,fontSize=fontSize,fillColor=textColor,textAnchor='middle'))
x += 32*barWidth
c = s[11]
gAdd(String(x,y,c,fontName=fontName,fontSize=fontSize,fillColor=textColor))
class Ean5BarcodeWidget(Ean13BarcodeWidget):
"""
EAN-5 barcodes can print the human readable price, set:
price=True
"""
codeName = "EAN5"
_attrMap = AttrMap(BASE=Ean13BarcodeWidget,
price=AttrMapValue(isBoolean,
desc='whether to display the price or not'),
value=AttrMapValue(nDigits(5), desc='the number'),
)
_nbars = 48
_digits = 5
_sep = '01'
_tail = '01011'
_0csw = 3
_1csw = 9
_lhconvert = {
"0": (1, 1, 0, 0, 0),
"1": (1, 0, 1, 0, 0),
"2": (1, 0, 0, 1, 0),
"3": (1, 0, 0, 0, 1),
"4": (0, 1, 1, 0, 0),
"5": (0, 0, 1, 1, 0),
"6": (0, 0, 0, 1, 1),
"7": (0, 1, 0, 1, 0),
"8": (0, 1, 0, 0, 1),
"9": (0, 0, 1, 0, 1)
}
def _checkdigit(cls, num):
z = ord('0')
iSum = cls._0csw * sum([(ord(x) - z) for x in num[::2]]) \
+ cls._1csw * sum([(ord(x) - z) for x in num[1::2]])
return chr(z + iSum % 10)
def _encode_left(self, s, a):
check = self._checkdigit(s)
cp = self._lhconvert[check]
_left = self._left
_sep = self._sep
z = ord('0')
full_code = []
for i, c in enumerate(s):
full_code.append(_left[cp[i]][ord(c) - z])
a(_sep.join(full_code))
def _short_bar(self, i):
i += 9 - self._lquiet
return self.humanReadable and ((12 < i < 41) or (43 < i < 73))
def _add_human_readable(self, s, gAdd):
barWidth = self.barWidth
fontSize = self.fontSize
textColor = self.textColor
fontName = self.fontName
fth = fontSize * 1.2
# draw the num below the line.
y = self.y + 0.2 * fth
x = self.x + (self._nbars + self._lquiet * 2) * barWidth / 2
gAdd(String(x, y, s, fontName=fontName, fontSize=fontSize,
fillColor=textColor, textAnchor='middle'))
price = getattr(self,'price',None)
if price:
price = None
if s[0] in '3456':
price = '$'
elif s[0] in '01':
price = asNative(b'\xc2\xa3')
if price is None:
return
price += s[1:3] + '.' + s[3:5]
y += self.barHeight
gAdd(String(x, y, price, fontName=fontName, fontSize=fontSize,
fillColor=textColor, textAnchor='middle'))
def draw(self):
g = Group()
gAdd = g.add
barWidth = self.barWidth
width = self.width
barHeight = self.barHeight
x = self.x
y = self.y
gAdd(Rect(x, y, width, barHeight, fillColor=None, strokeColor=None,
strokeWidth=0))
s = self.value
self._lquiet = lquiet = self._calc_quiet(self.lquiet)
rquiet = self._calc_quiet(self.rquiet)
b = [lquiet * '0' + self._tail] # the signal string
a = b.append
self._encode_left(s, a)
a(rquiet * '0')
fontSize = self.fontSize
barFillColor = self.barFillColor
barStrokeWidth = self.barStrokeWidth
barStrokeColor = self.barStrokeColor
fth = fontSize * 1.2
b = ''.join(b)
lrect = None
for i, c in enumerate(b):
if c == "1":
dh = fth
yh = y + dh
if lrect and lrect.y == yh:
lrect.width += barWidth
else:
lrect = Rect(x, yh, barWidth, barHeight - dh,
fillColor=barFillColor,
strokeWidth=barStrokeWidth,
strokeColor=barStrokeColor)
gAdd(lrect)
else:
lrect = None
x += barWidth
if self.humanReadable:
self._add_human_readable(s, gAdd)
return g
class ISBNBarcodeWidget(Ean13BarcodeWidget):
"""
ISBN Barcodes optionally print the EAN-5 supplemental price
barcode (with the price in dollars or pounds). Set price to a string
that follows the EAN-5 for ISBN spec:
leading digit 0, 1 = GBP
3 = AUD
4 = NZD
5 = USD
6 = CAD
next 4 digits = price between 00.00 and 99.98, i.e.:
price='52499' # $24.99 USD
"""
codeName = 'ISBN'
_attrMap = AttrMap(BASE=Ean13BarcodeWidget,
price=AttrMapValue(
NoneOr(nDigits(5)),
desc='None or the price to display'),
)
def draw(self):
g = Ean13BarcodeWidget.draw(self)
price = getattr(self,'price',None)
if not price:
return g
bounds = g.getBounds()
x = bounds[2]
pricecode = Ean5BarcodeWidget(x=x, value=price, price=True,
humanReadable=True,
barHeight=self.barHeight, quiet=self.quiet)
g.add(pricecode)
return g
def _add_human_readable(self, s, gAdd):
Ean13BarcodeWidget._add_human_readable(self,s, gAdd)
barWidth = self.barWidth
barHeight = self.barHeight
fontSize = self.fontSize
textColor = self.textColor
fontName = self.fontName
fth = fontSize * 1.2
y = self.y + 0.2 * fth + barHeight
x = self._lquiet * barWidth
isbn = 'ISBN '
segments = [s[0:3], s[3:4], s[4:9], s[9:12], s[12]]
isbn += '-'.join(segments)
gAdd(String(x, y, isbn, fontName=fontName, fontSize=fontSize,
fillColor=textColor))
Zerion Mini Shell 1.0