setop/python-escpos
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Merge remote-tracking branch 'origin/master' into merge/upstream/master

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This commit is contained in:
Christoph Heuel
2015-08-27 23:37:44 +02:00
parent 25b650c935 5eaa6f26d0
commit e23ce9bfc2
5 changed files with 61 additions and 11 deletions
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13
escpos/escpos.py
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@@ -3,7 +3,7 @@
@author: Manuel F Martinez <manpaz@bashlinux.com>
@organization: Bashlinux
@copyright: Copyright (c) 2012 Bashlinux
@license: GPL
@license: GNU GPL v3
"""
try:
@@ -111,7 +111,15 @@ class Escpos:
def image(self,path_img):
""" Open image file """
im_open = Image.open(path_img)
im = im_open.convert("RGB")
# Remove the alpha channel on transparent images
if im_open.mode == 'RGBA':
im_open.load()
im = Image.new("RGB", im_open.size, (255, 255, 255))
im.paste(im_open, mask=im_open.split()[3])
else:
im = im_open.convert("RGB")
# Convert the RGB image in printable image
self._convert_image(im)
@@ -155,6 +163,7 @@ class Escpos:
qr_code.make(fit=True)
qr_img = qr_code.make_image()
im = qr_img._img.convert("RGB")
# Convert the RGB image in printable image
self._convert_image(im)

22
escpos/printer.py
View File

@@ -3,7 +3,7 @@
@author: Manuel F Martinez <manpaz@bashlinux.com>
@organization: Bashlinux
@copyright: Copyright (c) 2012 Bashlinux
@license: GPL
@license: GNU GPL v3
"""
import usb.core
@@ -70,24 +70,40 @@ class Usb(Escpos):
class Serial(Escpos):
""" Define Serial printer """
def __init__(self, devfile="/dev/ttyS0", baudrate=9600, bytesize=8, timeout=1, *args, **kwargs):
def __init__(self, devfile="/dev/ttyS0", baudrate=9600, bytesize=8, timeout=1,
parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE,
xonxoff=False , dsrdtr=True, *args, **kwargs):
"""
@param devfile : Device file under dev filesystem
@param baudrate : Baud rate for serial transmission
@param bytesize : Serial buffer size
@param timeout : Read/Write timeout
@param parity : Parity checking
@param stopbits : Number of stop bits
@param xonxoff : Software flow control
@param dsrdtr : Hardware flow control (False to enable RTS/CTS)
"""
Escpos.__init__(self, *args, **kwargs)
self.devfile = devfile
self.baudrate = baudrate
self.bytesize = bytesize
self.timeout = timeout
self.parity = parity
self.stopbits = stopbits
self.xonxoff = xonxoff
self.dsrdtr = dsrdtr
self.open()
def open(self):
""" Setup serial port and set is as escpos device """
self.device = serial.Serial(port=self.devfile, baudrate=self.baudrate, bytesize=self.bytesize, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, timeout=self.timeout, dsrdtr=True)
self.device = serial.Serial(port=self.devfile, baudrate=self.baudrate,
bytesize=self.bytesize, parity=self.parity,
stopbits=self.stopbits, timeout=self.timeout,
xonxoff=self.xonxoff, dsrdtr=self.dsrdtr)
if self.device is not None:
print("Serial printer enabled")