psychose/psylib/psylib/psyqt_base.py

110 lines
3.9 KiB
Python

#!/usr/bin/python
# -*- coding: utf-8 -*-
# This file is part of chaosc/psylib package
#
# chaosc/psylib is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# chaosc/psylib is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with chaosc/psylib. If not, see <http://www.gnu.org/licenses/>.
#
# Copyright (C) 2014 Stefan Kögl
from __future__ import absolute_import
import sys
import traceback
from PyQt4 import QtCore, QtGui
from PyQt4.QtCore import QBuffer, QByteArray
from PyQt4.QtNetwork import QUdpSocket, QHostAddress
from chaosc.lib import logger
try:
from chaosc.c_osc_lib import OSCMessage, decode_osc
except ImportError as e:
from chaosc.osc_lib import OSCMessage, decode_osc
class PsyQtClientBase(QtCore.QObject):
def __init__(self):
super(PsyQtClientBase, self).__init__()
# periodically trap into python interpreter domain to catch signals etc
timer = QtCore.QTimer()
timer.start(2000)
timer.timeout.connect(lambda: None)
def sigint_handler(self, ex_cls, ex, traceback):
"""Handler for the SIGINT signal."""
if ex_cls == KeyboardInterrupt:
logger.info("found KeyboardInterrupt")
QtGui.QApplication.exit()
else:
logger.critical(''.join(traceback.format_tb(tb)))
logger.critical('{0}: {1}'.format(ex_cls, ex))
class PsyQtChaoscClientBase(PsyQtClientBase):
def __init__(self):
super(PsyQtChaoscClientBase, self).__init__()
self.osc_sock = QUdpSocket(self)
logger.info("osc bind localhost %d", self.args.client_port)
self.osc_sock.bind(QHostAddress(self.args.client_host), self.args.client_port)
self.osc_sock.readyRead.connect(self.got_message)
self.osc_sock.error.connect(self.handle_osc_error)
self.subscribe()
def sigint_handler(self, ex_cls, ex, tb):
"""Handler for the SIGINT signal."""
logger.info("sigint_handler")
if ex_cls == KeyboardInterrupt:
logger.info("found KeyboardInterrupt")
self.unsubscribe()
QtGui.QApplication.exit()
else:
logger.critical(''.join(traceback.format_tb(tb)))
logger.critical('{0}: {1}'.format(ex_cls, ex))
def sigterm_handler(self, *args):
logger.info("sigterm_handler")
self.unsubscribe()
QtGui.QApplication.exit()
def subscribe(self):
logger.info("subscribe")
msg = OSCMessage("/subscribe")
logger.info(self.args.client_host)
msg.appendTypedArg(self.args.client_host, "s")
msg.appendTypedArg(self.args.client_port, "i")
msg.appendTypedArg(self.args.authenticate, "s")
if self.args.subscriber_label is not None:
msg.appendTypedArg(self.args.subscriber_label, "s")
self.osc_sock.writeDatagram(QByteArray(msg.encode_osc()), QHostAddress(self.args.chaosc_host), self.args.chaosc_port)
def unsubscribe(self):
logger.info("unsubscribe")
msg = OSCMessage("/unsubscribe")
msg.appendTypedArg(self.args.client_host, "s")
msg.appendTypedArg(self.args.client_port, "i")
msg.appendTypedArg(self.args.authenticate, "s")
self.osc_sock.writeDatagram(QByteArray(msg.encode_osc()), QHostAddress(self.args.chaosc_host), self.args.chaosc_port)
def handle_osc_error(self, error):
logger.info("osc socket error %d", error)
def closeEvent(self, event):
logger.info("closeEvent", event)
self.unsubscribe()
event.accept()