def print_barcode(self, code):
""" Print a barcode representing the given code. """
if not code:
return
# If the barcode size exceeds the maximum size in which the printer
# could input in a single line, split it in two lines
if len(code) > self.max_barcode_characters:
# int() conversion is not actually required, but it makes the code
# Python 3 ready.
length = int(len(code) / 2)
self.print_barcode(code[:length])
self.print_line(b'')
self.print_barcode(code[length:])
return
# Set Width and Height
self.write(self.BARCODE_HEIGHT + chr(30))
self.write(self.BARCODE_WIDTH + chr(2))
# Other settings
self.write(self.BARCODE_FONT_REGULAR)
self.write(self.BARCODE_TXT_OFF)
# Then write the code
self.write(self.BARCODE_CODE93 + chr(len(code)) +
encode_text(code, self.charset))
def print_barcode(self, code):
""" Print a barcode representing the given code. """
if not code:
return
# If the barcode size exceeds the maximum size in which the printer
# could input in a single line, split it in two lines
if len(code) > self.max_barcode_characters:
# int() conversion is not actually required, but it makes the code
# Python 3 ready.
length = int(len(code) / 2)
self.print_barcode(code[:length])
self.print_line('')
self.print_barcode(code[length:])
return
# Set Width and Height
self.write(BARCODE_HEIGHT + chr(80))
self.write(BARCODE_WIDTH + chr(2))
# Other settings
self.write(BARCODE_FONT_A)
self.write(BARCODE_TXT_OFF)
# Then write the code
self.write(BARCODE_CODE93 + chr(len(code)) +
encode_text(code, self.charset))
def _configure_printer(self):
enc = lambda text: encode_text(text, self.coupon_printer_charset)
self._define_tax_name(0, enc(self.CASH_SUPPLY), entrada=True)
self._define_tax_name(1, enc(self.CASH_REMOVAL), entrada=False)
for code in range(2, 15):
self._delete_tax_name(code)
self._define_payment_method(0, enc('Cheque'))
self._define_payment_method(1, enc('Boleto'))
self._define_payment_method(2, enc('Cartão credito'), vinculated=True)
self._define_payment_method(3, enc('Cartão debito'), vinculated=True)
self._define_payment_method(4, enc('Financeira'))
self._define_payment_method(5, enc('Vale compra'))
for code in range(6, 15):
self._delete_payment_method(code)
self._define_tax_code(0, Decimal("17.00"))
self._define_tax_code(1, Decimal("12.00"))
self._define_tax_code(2, Decimal("25.00"))
self._define_tax_code(3, Decimal("8.00"))
self._define_tax_code(4, Decimal("5.00"))
self._define_tax_code(5, Decimal("3.00"), service=True)
for code in range(6, 16):
self._delete_tax_code(code)
def _till_read_memory_to_serial(self, start, end):
self._send_command(CMD_READ_MEMORY, '%s%sR' % (
start.strftime('%d%m%y'), end.strftime('%d%m%y')))
data = ''
while True:
c = self.read(1)
if ord(c) == 0x03:
break
data += encode_text(c, self.coupon_printer_charset)
return data
def _till_read_memory_to_serial(self, start, end):
# Page 39
ret = self.send_command(CMD_READ_MEMORY, 's%s%s' % (start.strftime('%d%m%y'),
end.strftime('%d%m%y')))
data = ''
while True:
line = self.readline()
if line[-1] == '\xff':
break
data += line
data = encode_text(data, 'cp860')
return (ret, data)
def print_inline(self, text):
""" Print a given text in a unique line. """
# Do nothing for empty texts
if not text:
return
# Encode the text with the correct codepage
if self.codepage:
text = encode_text(text, self.codepage)
# Then, finally write the text
self.write(self.default_font)
self.write(text)
def _till_read_memory_to_serial(self, start, end):
self._send_command(CMD_READ_MEMORY, '%s%sR' % (
start.strftime('%d%m%y'), end.strftime('%d%m%y')))
data = ''
while True:
c = self.read(1)
if ord(c) == 0x03:
break
data += encode_text(c, self.coupon_printer_charset)
return data
def _till_read_memory_to_serial(self, start, end):
# Page 39
ret = self.send_command(
CMD_READ_MEMORY,
's%s%s' % (start.strftime('%d%m%y'), end.strftime('%d%m%y')))
data = ''
while True:
line = self.readline()
if line[-1] == '\xff':
break
data += line
data = encode_text(data, 'cp860')
return (ret, data)
def _format_text(self, text):
return encode_text(text, self._charset)
def _format_text(self, text):
return encode_text(text, self._charset)
def gerencial_report_print(self, text):
text = encode_text(text, self.coupon_printer_charset)
for line in text.split('\n'):
line = line.replace('\\', '\\\\') # Vespague sucks
self._send_command('ImprimeTexto', TextoLivre=line)