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97 lines
2.7 KiB
97 lines
2.7 KiB
# write a thread that reads buttoninput from fifo or pyserial or something
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# https://gist.github.com/elshaka/2999082
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# and make this configureable
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from __future__ import print_function
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import os
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import serial
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from PySide import QtCore
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_inputs = {}
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def _add_input(inputType, inputClass):
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global _inputs
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_inputs[inputType] = inputClass
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def get_input(inputType, args, app):
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global _inputs
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if inputType not in _inputs:
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raise ValueError("'%s' is an unknown input type" % inputType)
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return _inputs[inputType](app, *args)
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class BaseInput(QtCore.QThread):
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buttonEvent = QtCore.Signal(int)
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def __init__(self, app, parent=None):
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super(BaseInput, self).__init__(parent)
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self._app = app
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def _sendButtonEvent(self, btn):
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self.buttonEvent.emit(int(btn))
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@QtCore.Slot(bool)
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def buzzersOpen(self, isOpen):
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""" Called when buzzers are opened or closed for answering
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isOpen - True if question got opened, False if closed
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"""
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#print("Buzzers are now " + ("open" if isOpen else "closed"))
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pass
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@QtCore.Slot(int)
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def playerGotQuestion(self, playerNo):
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""" Called when a player got its turn to answer the question
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playerNo - number (int) of player which can answer (starting from 1)
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"""
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#print("player %d can answer now" % playerNo)
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pass
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class SerialThread(QtCore.QThread):
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dataReady = QtCore.Signal(str)
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class SerialInput(BaseInput):
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def __init__(self, app, device, baudrate=9600, bytesize=8, parity='N', stopbits=1):
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super(SerialInput, self).__init__(app)
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try:
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self._serial = serial.Serial(device, baudrate, bytesize, parity, stopbits)
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except serial.SerialException as e:
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raise InputException("Error: %s" % e)
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print(" >> serial %s initialized with rate %s %s%s%s" % (device, baudrate, bytesize, parity, stopbits))
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def run(self):
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while True:
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c = self._serial.read(1)
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if len(c) == 1 and ord(c) > ord('0') and ord(c) <= ord('9'):
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self._sendButtonEvent(c)
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_add_input("Serial", SerialInput)
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class FifoInput(BaseInput):
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def __init__(self, app, fifoPath, debug=False):
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super(FifoInput, self).__init__(app)
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self._path = fifoPath
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self._debug = debug
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if not os.path.exists(self._path):
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try:
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os.mkfifo(self._path)
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except OSError as e:
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raise InputException("Could not create fifo '%s': %s" % (self._path, e))
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if os.path.isfile(self._path) or os.path.isdir(self._path):
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raise InputException("Fifo '%s' is not a fifo" % self._path)
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print(" >> Fifo initialized, using '%s'" % self._path)
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def run(self):
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fifo = open(self._path)
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while True:
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c = fifo.read(1)
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if len(c) == 1 and ord(c) > ord('0') and ord(c) <= ord('9'):
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self._sendButtonEvent(c)
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_add_input("Fifo", FifoInput)
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class InputException(Exception):
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pass
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