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add basic support for multilanguage

This commit is contained in:
Patrick Kanzler 2016-06-17 23:04:10 +02:00
parent 910f2fbf2f
commit 1e490b6de8
1 changed files with 31 additions and 3 deletions
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34
escpos/escpos.py
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@ -32,6 +32,7 @@ class Escpos(object):
class.
"""
device = None
codepage = None
def __init__(self, columns=32):
""" Initialize ESCPOS Printer
@ -207,48 +208,71 @@ class Escpos(object):
: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'
else:
raise CharCodeError()
@ -385,14 +409,16 @@ class Escpos(object):
""" Print alpha-numeric text
The text has to be encoded in the currently selected codepage.
.. todo:: rework this in order to proberly handle encoding
The input text has to be encoded in unicode.
:param txt: text to be printed
:raises: :py:exc:`~escpos.exceptions.TextError`
"""
if txt:
self._raw(txt.encode())
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()
@ -400,6 +426,8 @@ class Escpos(object):
def block_text(self, txt, columns=None):
""" Text is printed wrapped to specified columns
Text has to be encoded in unicode.
:param txt: text to be printed
:param columns: amount of columns
:return: None