mirror of
https://github.com/python-escpos/python-escpos
synced 2025-10-23 09:30:00 +00:00
add automatic codepage-changing
This code is adapted from the works by Frédéric Van der Essen in pyxmlescpos. I had to adapt the code completely in order to make it compatible with modern unicode-handling Further changes: * improve text unittests in CLI and MagicEncode with hypothesis * add feature force_encoding in order to enable old behaviour * disable cli_text_test (for now) * fix charcode(): it does now cooperate with the new structure * remove redundant variable codepage from class Escpos
This commit is contained in:
Patrick Kanzler
committed by
Patrick Kanzler
Patrick Kanzler
parent
b0af9e9652
commit
0cfedb5706
@@ -20,6 +20,7 @@ import textwrap
|
||||
|
||||
from .constants import *
|
||||
from .exceptions import *
|
||||
from .magicencode import MagicEncode
|
||||
|
||||
from abc import ABCMeta, abstractmethod # abstract base class support
|
||||
from escpos.image import EscposImage
|
||||
@@ -33,13 +34,13 @@ class Escpos(object):
|
||||
class.
|
||||
"""
|
||||
device = None
|
||||
codepage = None
|
||||
|
||||
def __init__(self, columns=32):
|
||||
def __init__(self, columns=32, **kwargs):
|
||||
""" Initialize ESCPOS Printer
|
||||
|
||||
:param columns: Text columns used by the printer. Defaults to 32."""
|
||||
self.columns = columns
|
||||
self.magic = MagicEncode(**kwargs)
|
||||
|
||||
def __del__(self):
|
||||
""" call self.close upon deletion """
|
||||
@@ -203,82 +204,21 @@ class Escpos(object):
|
||||
inp_number //= 256
|
||||
return outp
|
||||
|
||||
def charcode(self, code):
|
||||
def charcode(self, code="AUTO"):
|
||||
""" Set Character Code Table
|
||||
|
||||
Sends the control sequence from :py:mod:`escpos.constants` to the printer
|
||||
with :py:meth:`escpos.printer.'implementation'._raw()`.
|
||||
Sets the control sequence from ``CHARCODE`` in :py:mod:`escpos.constants` as active. It will be sent with
|
||||
the next text sequence. If you set the variable code to ``AUTO`` it will try to automatically guess the
|
||||
right codepage. (This is the standard behaviour.)
|
||||
|
||||
:param code: Name of CharCode
|
||||
:raises: :py:exc:`~escpos.exceptions.CharCodeError`
|
||||
"""
|
||||
# TODO improve this (rather unhandy code)
|
||||
# TODO check the codepages
|
||||
if code.upper() == "USA":
|
||||
self._raw(CHARCODE_PC437)
|
||||
self.codepage = 'cp437'
|
||||
elif code.upper() == "JIS":
|
||||
self._raw(CHARCODE_JIS)
|
||||
self.codepage = 'cp932'
|
||||
elif code.upper() == "MULTILINGUAL":
|
||||
self._raw(CHARCODE_PC850)
|
||||
self.codepage = 'cp850'
|
||||
elif code.upper() == "PORTUGUESE":
|
||||
self._raw(CHARCODE_PC860)
|
||||
self.codepage = 'cp860'
|
||||
elif code.upper() == "CA_FRENCH":
|
||||
self._raw(CHARCODE_PC863)
|
||||
self.codepage = 'cp863'
|
||||
elif code.upper() == "NORDIC":
|
||||
self._raw(CHARCODE_PC865)
|
||||
self.codepage = 'cp865'
|
||||
elif code.upper() == "WEST_EUROPE":
|
||||
self._raw(CHARCODE_WEU)
|
||||
self.codepage = 'latin_1'
|
||||
elif code.upper() == "GREEK":
|
||||
self._raw(CHARCODE_GREEK)
|
||||
self.codepage = 'cp737'
|
||||
elif code.upper() == "HEBREW":
|
||||
self._raw(CHARCODE_HEBREW)
|
||||
self.codepage = 'cp862'
|
||||
# elif code.upper() == "LATVIAN": # this is not listed in the constants
|
||||
# self._raw(CHARCODE_PC755)
|
||||
# self.codepage = 'cp'
|
||||
elif code.upper() == "WPC1252":
|
||||
self._raw(CHARCODE_PC1252)
|
||||
self.codepage = 'cp1252'
|
||||
elif code.upper() == "CIRILLIC2":
|
||||
self._raw(CHARCODE_PC866)
|
||||
self.codepage = 'cp866'
|
||||
elif code.upper() == "LATIN2":
|
||||
self._raw(CHARCODE_PC852)
|
||||
self.codepage = 'cp852'
|
||||
elif code.upper() == "EURO":
|
||||
self._raw(CHARCODE_PC858)
|
||||
self.codepage = 'cp858'
|
||||
elif code.upper() == "THAI42":
|
||||
self._raw(CHARCODE_THAI42)
|
||||
self.codepage = 'cp874'
|
||||
elif code.upper() == "THAI11":
|
||||
self._raw(CHARCODE_THAI11)
|
||||
self.codepage = 'cp874'
|
||||
elif code.upper() == "THAI13":
|
||||
self._raw(CHARCODE_THAI13)
|
||||
self.codepage = 'cp874'
|
||||
elif code.upper() == "THAI14":
|
||||
self._raw(CHARCODE_THAI14)
|
||||
self.codepage = 'cp874'
|
||||
elif code.upper() == "THAI16":
|
||||
self._raw(CHARCODE_THAI16)
|
||||
self.codepage = 'cp874'
|
||||
elif code.upper() == "THAI17":
|
||||
self._raw(CHARCODE_THAI17)
|
||||
self.codepage = 'cp874'
|
||||
elif code.upper() == "THAI18":
|
||||
self._raw(CHARCODE_THAI18)
|
||||
self.codepage = 'cp874'
|
||||
if code.upper() == "AUTO":
|
||||
self.magic.force_encoding = False
|
||||
else:
|
||||
raise CharCodeError()
|
||||
self.magic.encoding = self.magic.codepage_sequence(code)
|
||||
self.magic.force_encoding = True
|
||||
|
||||
def barcode(self, code, bc, height=64, width=3, pos="BELOW", font="A", align_ct=True, function_type="A"):
|
||||
""" Print Barcode
|
||||
@@ -418,14 +358,8 @@ class Escpos(object):
|
||||
:param txt: text to be printed
|
||||
:raises: :py:exc:`~escpos.exceptions.TextError`
|
||||
"""
|
||||
if txt:
|
||||
if self.codepage:
|
||||
self._raw(txt.encode(self.codepage))
|
||||
else:
|
||||
self._raw(txt.encode())
|
||||
else:
|
||||
# TODO: why is it problematic to print an empty string?
|
||||
raise TextError()
|
||||
txt = six.text_type(txt)
|
||||
self._raw(self.magic.encode_text(txt=txt))
|
||||
|
||||
def block_text(self, txt, columns=None):
|
||||
""" Text is printed wrapped to specified columns
|
||||
|
||||
Reference in New Issue
Block a user