def __init__(self, prefix="", number=None, subtype="1", border=None, checksum=False, availheight=None):
"""
Initializes an LTO label.
prefix : Up to six characters from [A-Z][0-9]. Defaults to "".
number : Label's number or None. Defaults to None.
subtype : LTO subtype string , e.g. "1" for LTO1. Defaults to "1".
border : None, or the width of the label's border. Defaults to None.
checksum : Boolean indicates if checksum char has to be printed. Defaults to False.
availheight : Available height on the label, or None for automatic. Defaults to None.
"""
self.height = max(availheight, self.CODEBARHEIGHT)
self.border = border
if (len(subtype) != 1) or (subtype not in string.ascii_uppercase + string.digits):
raise ValueError, "Invalid subtype '%s'" % subtype
if ((not number) and (len(prefix) > 6)) or not prefix.isalnum():
raise ValueError, "Invalid prefix '%s'" % prefix
label = "%sL%s" % ((prefix + str(number or 0).zfill(6 - len(prefix)))[:6], subtype)
if len(label) != 8:
raise ValueError, "Invalid set of parameters (%s, %s, %s)" % (prefix, number, subtype)
self.label = label
Standard39.__init__(
self,
label,
ratio=self.CODERATIO,
barHeight=self.height,
barWidth=self.CODEBARWIDTH,
gap=self.CODEGAP,
lquiet=self.CODELQUIET,
rquiet=self.CODERQUIET,
quiet=True,
checksum=checksum,
)
def drawOn(self, canvas, x, y):
"""Draws the LTO label onto the canvas."""
canvas.saveState()
canvas.translate(x, y)
if self.border:
canvas.setLineWidth(self.border)
canvas.roundRect(0, 0, self.LABELWIDTH, self.LABELHEIGHT, self.LABELROUND)
Standard39.drawOn(self, canvas, (self.LABELWIDTH - self.CODENOMINALWIDTH) / 2.0, self.LABELHEIGHT - self.height)
canvas.restoreState()
def drawOn(self, canvas, x, y):
"""Draws the LTO label onto the canvas."""
canvas.saveState()
canvas.translate(x, y)
if self.border:
canvas.setLineWidth(self.border)
canvas.roundRect(0, 0, self.LABELWIDTH, self.LABELHEIGHT,
self.LABELROUND)
Standard39.drawOn(self, canvas,
(self.LABELWIDTH - self.CODENOMINALWIDTH) / 2.0,
self.LABELHEIGHT - self.height)
canvas.restoreState()
def __init__(self,
prefix="",
number=None,
subtype="1",
border=None,
checksum=False,
availheight=None):
"""
Initializes an LTO label.
prefix : Up to six characters from [A-Z][0-9]. Defaults to "".
number : Label's number or None. Defaults to None.
subtype : LTO subtype string , e.g. "1" for LTO1. Defaults to "1".
border : None, or the width of the label's border. Defaults to None.
checksum : Boolean indicates if checksum char has to be printed. Defaults to False.
availheight : Available height on the label, or None for automatic. Defaults to None.
"""
self.height = max(availheight, self.CODEBARHEIGHT)
self.border = border
if (len(subtype) != 1) \
or (subtype not in string.ascii_uppercase + string.digits) :
raise ValueError, "Invalid subtype '%s'" % subtype
if ((not number) and (len(prefix) > 6)) \
or not prefix.isalnum() :
raise ValueError, "Invalid prefix '%s'" % prefix
label = "%sL%s" % (
(prefix + str(number or 0).zfill(6 - len(prefix)))[:6], subtype)
if len(label) != 8:
raise ValueError, "Invalid set of parameters (%s, %s, %s)" \
% (prefix, number, subtype)
self.label = label
Standard39.__init__(self,
label,
ratio=self.CODERATIO,
barHeight=self.height,
barWidth=self.CODEBARWIDTH,
gap=self.CODEGAP,
lquiet=self.CODELQUIET,
rquiet=self.CODERQUIET,
quiet=True,
checksum=checksum)