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WIP: Multi-printers #32

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n07070 wants to merge 25 commits from multi-printers into master
pull from: multi-printers
merge into: n07070:master
Conversation 2 Commits 25 Files Changed 10 +18 -13
1 changed files with 18 additions and 13 deletions
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src/printers.py
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@@ -1,13 +1,14 @@
""" """
A collection of Printers. A collection of Printers.
It has methods to discover printers, and provides an interface for the methods expected from printers. It has methods to discover printers, and provides an interface for
the methods expected from printers.
""" """
from collections.abc import Mapping, Set from collections.abc import Set
import usb.core import usb.core
import usb.util import usb.util
from printer import Printer, EscPosPrinter, BrotherPrinter, PrinterType from printer import Printer, EscPosPrinter, BrotherPrinter
class Printers: class Printers:
@@ -81,7 +82,7 @@ class Printers:
# If the object creation is successfull, we add it to the list of Printers # If the object creation is successfull, we add it to the list of Printers
printers.add(escpos_printer) printers.add(escpos_printer)
self.app.logger.debug("Found a %s printer" % manufacturer) self.app.logger.debug("Found a %s printer", manufacturer)
# We already found the type of printer, # We already found the type of printer,
# we don't need an extra comparaison. # we don't need an extra comparaison.
@@ -99,7 +100,7 @@ class Printers:
) )
except Exception as e: except Exception as e:
self.app.logger.error( self.app.logger.error(
"Could not create a %s printer class with %s:%s" % product, "Could not create a %s printer class with %s:%s" , product,
dev.idVendor, dev.idVendor,
dev.idProduct, dev.idProduct,
) )
@@ -107,9 +108,9 @@ class Printers:
# If the object creation is successfull, we add it to the list of Printers # If the object creation is successfull, we add it to the list of Printers
printers.add(brother_printer) printers.add(brother_printer)
self.app.logger.debug("Found a %s printer" % manufacturer) self.app.logger.debug("Found a %s printer" , manufacturer)
self.app.logger.debug("Found %s printers" % len(printers)) self.app.logger.debug("Found %s printers" , len(printers))
return printers return printers
def any(self) -> Printer: def any(self) -> Printer:
@@ -122,16 +123,20 @@ class Printers:
else: else:
raise RuntimeError("No printers available") raise RuntimeError("No printers available")
def get_printer(self, printer_type): # def get_printer(self, printer_type):
""" # """
Return a specific printer # Return a specific printer
printer_type -- a printer type # printer_type -- a printer type
""" # """
return NotImplementedError() # return NotImplementedError()
class _FindClass: class _FindClass:
"""
Use by usb.core to modify the way USB devices are found
Taken from pyUSB documentation on Github
"""
def __init__(self, class_): def __init__(self, class_):
self._class = class_ self._class = class_