setop/python-escpos
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Merge remote-tracking branch 'faulab/refactoring-and-documentation'

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This commit is contained in:
Christoph Heuel
2015-12-12 17:19:30 +01:00
parent 577de10cb4 0dacc35d94
commit 06f2e1e731
8 changed files with 240 additions and 171 deletions
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33
escpos/printer.py
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@@ -15,28 +15,28 @@ from .escpos import *
from .constants import *
from .exceptions import *
class Usb(Escpos):
""" Define USB printer """
def __init__(self, idVendor, idProduct, interface=0, in_ep=0x82, out_ep=0x01, *args, **kwargs):
"""
@param idVendor : Vendor ID
@param idProduct : Product ID
@param interface : USB device interface
@param in_ep : Input end point
@param out_ep : Output end point
:param idVendor: Vendor ID
:param idProduct: Product ID
:param interface: USB device interface
:param in_ep: Input end point
:param out_ep: Output end point
"""
Escpos.__init__(self, *args, **kwargs)
self.idVendor = idVendor
self.idProduct = idProduct
self.interface = interface
self.in_ep = in_ep
self.out_ep = out_ep
self.in_ep = in_ep
self.out_ep = out_ep
self.open()
def open(self):
""" Search device on USB tree and set is as escpos device """
""" Search device on USB tree and set it as escpos device """
self.device = usb.core.find(idVendor=self.idVendor, idProduct=self.idProduct)
if self.device is None:
print("Cable isn't plugged in")
@@ -61,12 +61,10 @@ class Usb(Escpos):
except usb.core.USBError as e:
print("Could not set configuration: %s" % str(e))
def _raw(self, msg):
""" Print any command sent in raw format """
self.device.write(self.out_ep, msg, self.interface)
def __del__(self):
""" Release USB interface """
if self.device:
@@ -74,7 +72,6 @@ class Usb(Escpos):
self.device = None
class Serial(Escpos):
""" Define Serial printer """
@@ -97,7 +94,6 @@ class Serial(Escpos):
self.baudrate = baudrate
self.bytesize = bytesize
self.timeout = timeout
self.parity = parity
self.stopbits = stopbits
self.xonxoff = xonxoff
@@ -105,7 +101,6 @@ class Serial(Escpos):
self.open()
def open(self):
""" Setup serial port and set is as escpos device """
self.device = serial.Serial(port=self.devfile, baudrate=self.baudrate,
@@ -118,19 +113,16 @@ class Serial(Escpos):
else:
print("Unable to open serial printer on: %s" % self.devfile)
def _raw(self, msg):
""" Print any command sent in raw format """
self.device.write(msg)
def __del__(self):
""" Close Serial interface """
if self.device is not None:
self.device.close()
class Network(Escpos):
""" Define Network printer """
@@ -144,7 +136,6 @@ class Network(Escpos):
self.port = port
self.open()
def open(self):
""" Open TCP socket and set it as escpos device """
self.device = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
@@ -153,18 +144,15 @@ class Network(Escpos):
if self.device is None:
print("Could not open socket for %s" % self.host)
def _raw(self, msg):
""" Print any command sent in raw format """
self.device.send(msg)
def __del__(self):
""" Close TCP connection """
self.device.close()
class File(Escpos):
""" Define Generic file printer """
@@ -176,7 +164,6 @@ class File(Escpos):
self.devfile = devfile
self.open()
def open(self):
""" Open system file """
self.device = open(self.devfile, "wb")
@@ -188,7 +175,6 @@ class File(Escpos):
"""Flush printing content"""
self.device.flush()
def _raw(self, msg):
""" Print any command sent in raw format """
if type(msg) is str:
@@ -196,7 +182,6 @@ class File(Escpos):
else:
self.device.write(msg);
def __del__(self):
""" Close system file """
self.device.close()