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Fixed tabs and added charcode tables

This commit is contained in:
Manuel F Martinez 2014-05-20 22:15:54 -07:00
parent 51faf0a622
commit f6f1a4278f
5 changed files with 127 additions and 27 deletions
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6
CHANGELOG
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@ -13,6 +13,10 @@ CHANGELOG
- Issue #5: Fixed vertical tab
- Issue #9: Fixed identation inconsistence
* 2013-02-23 - Version 1.0.3
* 2014-02-23 - Version 1.0.3
- Issue #18: Added quad-area characters (Sent by syncman1x@gmail.com)
- Added exception for PIL import
* 2014-05-20 - Version 1.0.4
- Added charcode tables
- Fixed Horizontal Tab

43
escpos/constants.py
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@ -1,18 +1,19 @@
""" ESC/POS Commands (Constants) """
# Feed control sequences
CTL_LF = '\x0a' # Print and line feed
CTL_FF = '\x0c' # Form feed
CTL_CR = '\x0d' # Carriage return
CTL_HT = '\x09' # Horizontal tab
CTL_VT = '\x0b' # Vertical tab
CTL_LF = '\x0a' # Print and line feed
CTL_FF = '\x0c' # Form feed
CTL_CR = '\x0d' # Carriage return
CTL_HT = '\x09' # Horizontal tab
CTL_SET_HT = '\x1b\x44' # Set horizontal tab positions
CTL_VT = '\x1b\x64\x04' # Vertical tab
# Printer hardware
HW_INIT = '\x1b\x40' # Clear data in buffer and reset modes
HW_SELECT = '\x1b\x3d\x01' # Printer select
HW_RESET = '\x1b\x3f\x0a\x00' # Reset printer hardware
HW_INIT = '\x1b\x40' # Clear data in buffer and reset modes
HW_SELECT = '\x1b\x3d\x01' # Printer select
HW_RESET = '\x1b\x3f\x0a\x00' # Reset printer hardware
# Cash Drawer
CD_KICK_2 = '\x1b\x70\x00' # Sends a pulse to pin 2 []
CD_KICK_5 = '\x1b\x70\x01' # Sends a pulse to pin 5 []
CD_KICK_2 = '\x1b\x70\x00' # Sends a pulse to pin 2 []
CD_KICK_5 = '\x1b\x70\x01' # Sends a pulse to pin 5 []
# Paper
PAPER_FULL_CUT = '\x1d\x56\x00' # Full cut paper
PAPER_PART_CUT = '\x1d\x56\x01' # Partial cut paper
@ -20,7 +21,6 @@ PAPER_PART_CUT = '\x1d\x56\x01' # Partial cut paper
TXT_NORMAL = '\x1b\x21\x00' # Normal text
TXT_2HEIGHT = '\x1b\x21\x10' # Double height text
TXT_2WIDTH = '\x1b\x21\x20' # Double width text
TXT_4SQUARE = '\x1b\x21\x30' # Quad area text
TXT_UNDERL_OFF = '\x1b\x2d\x00' # Underline font OFF
TXT_UNDERL_ON = '\x1b\x2d\x01' # Underline font 1-dot ON
TXT_UNDERL2_ON = '\x1b\x2d\x02' # Underline font 2-dot ON
@ -31,6 +31,27 @@ TXT_FONT_B = '\x1b\x4d\x01' # Font type B
TXT_ALIGN_LT = '\x1b\x61\x00' # Left justification
TXT_ALIGN_CT = '\x1b\x61\x01' # Centering
TXT_ALIGN_RT = '\x1b\x61\x02' # Right justification
# Char code table
CHARCODE_PC437 = '\x1b\x74\x00' # USA: Standard Europe
CHARCODE_JIS = '\x1b\x74\x01' # Japanese Katakana
CHARCODE_PC850 = '\x1b\x74\x02' # Multilingual
CHARCODE_PC860 = '\x1b\x74\x03' # Portuguese
CHARCODE_PC863 = '\x1b\x74\x04' # Canadian-French
CHARCODE_PC865 = '\x1b\x74\x05' # Nordic
CHARCODE_WEU = '\x1b\x74\x06' # Simplified Kanji, Hirakana
CHARCODE_GREEK = '\x1b\x74\x07' # Simplified Kanji
CHARCODE_HEBREW = '\x1b\x74\x08' # Simplified Kanji
CHARCODE_PC1252 = '\x1b\x74\x11' # Western European Windows Code Set
CHARCODE_PC866 = '\x1b\x74\x12' # Cirillic #2
CHARCODE_PC852 = '\x1b\x74\x13' # Latin 2
CHARCODE_PC858 = '\x1b\x74\x14' # Euro
CHARCODE_THAI42 = '\x1b\x74\x15' # Thai character code 42
CHARCODE_THAI11 = '\x1b\x74\x16' # Thai character code 11
CHARCODE_THAI13 = '\x1b\x74\x17' # Thai character code 13
CHARCODE_THAI14 = '\x1b\x74\x18' # Thai character code 14
CHARCODE_THAI16 = '\x1b\x74\x19' # Thai character code 16
CHARCODE_THAI17 = '\x1b\x74\x1a' # Thai character code 17
CHARCODE_THAI18 = '\x1b\x74\x1b' # Thai character code 18
# Barcode format
BARCODE_TXT_OFF = '\x1d\x48\x00' # HRI barcode chars OFF
BARCODE_TXT_ABV = '\x1d\x48\x01' # HRI barcode chars above

79
escpos/escpos.py
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@ -1,10 +1,10 @@
#!/usr/bin/python
'''
"""
@author: Manuel F Martinez <manpaz@bashlinux.com>
@organization: Bashlinux
@copyright: Copyright (c) 2012 Bashlinux
@license: GPL
'''
"""
try:
import Image
@ -123,6 +123,53 @@ class Escpos:
self._convert_image(im)
def charcode(self,code):
""" Set Character Code Table """
if code.upper() == "USA":
self._raw(CHARCODE_PC437)
elif code.upper() == "JIS":
self._raw(CHARCODE_JIS)
elif code.upper() == "MULTILINGUAL":
self._raw(CHARCODE_PC850)
elif code.upper() == "PORTUGUESE":
self._raw(CHARCODE_PC860)
elif code.upper() == "CA_FRENCH":
self._raw(CHARCODE_PC863)
elif code.upper() == "NORDIC":
self._raw(CHARCODE_PC865)
elif code.upper() == "WEST_EUROPE":
self._raw(CHARCODE_WEU)
elif code.upper() == "GREEK":
self._raw(CHARCODE_GREEK)
elif code.upper() == "HEBREW":
self._raw(CHARCODE_HEBREW)
elif code.upper() == "LATVIAN":
self._raw(CHARCODE_PC755)
elif code.upper() == "WPC1252":
self._raw(CHARCODE_PC1252)
elif code.upper() == "CIRILLIC2":
self._raw(CHARCODE_PC866)
elif code.upper() == "LATIN2":
self._raw(CHARCODE_PC852)
elif code.upper() == "EURO":
self._raw(CHARCODE_PC858)
elif code.upper() == "THAI42":
self._raw(CHARCODE_THAI42)
elif code.upper() == "THAI11":
self._raw(CHARCODE_THAI11)
elif code.upper() == "THAI13":
self._raw(CHARCODE_THAI13)
elif code.upper() == "THAI14":
self._raw(CHARCODE_THAI14)
elif code.upper() == "THAI16":
self._raw(CHARCODE_THAI16)
elif code.upper() == "THAI17":
self._raw(CHARCODE_THAI17)
elif code.upper() == "THAI18":
self._raw(CHARCODE_THAI18)
else:
raise CharCode_error()
def barcode(self, code, bc, width, height, pos, font):
""" Print Barcode """
# Align Bar Code()
@ -186,17 +233,17 @@ class Escpos:
def set(self, align='left', font='a', type='normal', width=1, height=1):
""" Set text properties """
# Width
if height != 2 and width != 2: # DEFAULT SIZE: NORMAL
self._raw(TXT_NORMAL)
if height == 2:
self._raw(TXT_2HEIGHT)
if width == 2:
self._raw(TXT_2WIDTH)
if height == 2 and width == 2:
self._raw(TXT_4SQUARE)
self._raw(TXT_2WIDTH)
self._raw(TXT_2HEIGHT)
elif height == 2 and width != 2:
self._raw(TXT_NORMAL)
self._raw(TXT_2HEIGHT)
elif width == 2 and height != 2:
self._raw(TXT_NORMAL)
self._raw(TXT_2WIDTH)
else: # DEFAULT SIZE: NORMAL
self._raw(TXT_NORMAL)
# Type
if type.upper() == "B":
self._raw(TXT_BOLD_ON)
@ -264,8 +311,14 @@ class Escpos:
pass
def control(self, ctl):
def control(self, ctl, pos=4):
""" Feed control sequences """
# Set tab positions
if pos < 1 or pos > 16:
raise TabError()
else:
self._raw("".join([CTL_SET_HT,hex(pos)]))
# Set position
if ctl.upper() == "LF":
self._raw(CTL_LF)
elif ctl.upper() == "FF":

22
escpos/exceptions.py
View File

@ -22,6 +22,8 @@ class Error(Exception):
# 40 = Image height is too large
# 50 = No string supplied to be printed
# 60 = Invalid pin to send Cash Drawer pulse
# 70 = Invalid number of tab positions
# 80 = Invalid char code
class BarcodeTypeError(Error):
@ -78,3 +80,23 @@ class CashDrawerError(Error):
def __str__(self):
return "Valid pin must be set to send pulse"
class TabError(Error):
def __init__(self, msg=""):
Error.__init__(self, msg)
self.msg = msg
self.resultcode = 70
def __str__(self):
return "Valid tab positions must be in the range 0 to 16"
class CharCodeError(Error):
def __init__(self, msg=""):
Error.__init__(self, msg)
self.msg = msg
self.resultcode = 70
def __str__(self):
return "Valid char code must be set"

4
escpos/printer.py
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@ -1,10 +1,10 @@
#!/usr/bin/python
'''
"""
@author: Manuel F Martinez <manpaz@bashlinux.com>
@organization: Bashlinux
@copyright: Copyright (c) 2012 Bashlinux
@license: GPL
'''
"""
import usb.core
import usb.util