99 lines
3 KiB
Python
99 lines
3 KiB
Python
# -*- coding: utf-8;-*-
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################################################################################
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#
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# Rattail -- Retail Software Framework
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# Copyright © 2010-2018 Lance Edgar
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#
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# This file is part of Rattail.
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#
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# Rattail is free software: you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation, either version 3 of the License, or (at your option) any later
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# version.
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#
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# Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# Rattail. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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"""
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Label Printing
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"""
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from __future__ import unicode_literals, absolute_import
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from rattail import labels
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class BlasterFilePrinter(labels.CommandFilePrinter):
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"""
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Label printer class for Cognitive Blaster devices, which generates an
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output file containing native printer commands.
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"""
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def batch_header_commands(self):
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return ['C' * 80] # wakeup
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class BlasterFormatter(labels.CommandFormatter):
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"""
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Default label formatter class for Cognitive Blaster devices.
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"""
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def label_header_commands(self):
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return [
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'! 0 30 120 1',
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'WIDTH 233',
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]
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def label_footer_commands(self):
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noindex = self.config.getbool(
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'rattail.hw.cognitive', 'blaster.hack_noindex', default=False)
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if noindex:
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return [
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'NOINDEX',
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'END',
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'! 0 100 8 1',
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'END',
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]
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return [
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'INDEX',
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'END',
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]
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class BlasterTwoUpFormatter(labels.TwoUpCommandFormatter, BlasterFormatter):
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"""
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Default implementation of "two-up" formatter for Blaster label printing.
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"""
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half_offset = 120
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def label_body_commands(self, product, x=0):
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# Always remove check digit from UPC.
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upc = unicode(product.upc)[:-1]
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if len(upc) != 13:
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raise ValueError(u"UPC format is unexpected: {0}".format(repr(product.upc)))
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# Create barcode command based on type of UPC.
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if upc.startswith(u'00'): # UPC-A
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barcode_type = u'UPCA+'
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barcode = upc[2:]
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elif upc.startswith(u'0'): # EAN-13
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barcode_type = u'EAN13+'
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barcode = upc[1:]
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else:
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raise ValueError(u"UPC format is invalid: {0}".format(repr(product.upc)))
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description = u'{0} {1}'.format(product.description, product.size)
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return [
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u'STRING 5X7(1,1,1,1) {0} 5 {1}'.format(x + 5, description[:17]),
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u'STRING 5X7(1,1,1,1) {0} 15 {1}'.format(x + 5, description[17:]),
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u'BARCODE {0} {1} 75 25 {2}'.format(barcode_type, x + 9, barcode),
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]
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