def loop_wx(kernel):
"""Start a kernel with wx event loop support."""
import wx
from IPython.lib.guisupport import start_event_loop_wx
if _use_appnope() and kernel._darwin_app_nap:
# we don't hook up App Nap contexts for Wx,
# just disable it outright.
from appnope import nope
nope()
doi = kernel.do_one_iteration
# Wx uses milliseconds
poll_interval = int(1000*kernel._poll_interval)
# We have to put the wx.Timer in a wx.Frame for it to fire properly.
# We make the Frame hidden when we create it in the main app below.
class TimerFrame(wx.Frame):
def __init__(self, func):
wx.Frame.__init__(self, None, -1)
self.timer = wx.Timer(self)
# Units for the timer are in milliseconds
self.timer.Start(poll_interval)
self.Bind(wx.EVT_TIMER, self.on_timer)
self.func = func
def on_timer(self, event):
self.func()
# We need a custom wx.App to create our Frame subclass that has the
# wx.Timer to drive the ZMQ event loop.
class IPWxApp(wx.App):
def OnInit(self):
self.frame = TimerFrame(doi)
self.frame.Show(False)
return True
# The redirect=False here makes sure that wx doesn't replace
# sys.stdout/stderr with its own classes.
kernel.app = IPWxApp(redirect=False)
# The import of wx on Linux sets the handler for signal.SIGINT
# to 0. This is a bug in wx or gtk. We fix by just setting it
# back to the Python default.
import signal
if not callable(signal.getsignal(signal.SIGINT)):
signal.signal(signal.SIGINT, signal.default_int_handler)
start_event_loop_wx(kernel.app)
def loop_wx(kernel):
"""Start a kernel with wx event loop support."""
import wx
from IPython.lib.guisupport import start_event_loop_wx
if _use_appnope() and kernel._darwin_app_nap:
# we don't hook up App Nap contexts for Wx,
# just disable it outright.
from appnope import nope
nope()
doi = kernel.do_one_iteration
# Wx uses milliseconds
poll_interval = int(1000 * kernel._poll_interval)
# We have to put the wx.Timer in a wx.Frame for it to fire properly.
# We make the Frame hidden when we create it in the main app below.
class TimerFrame(wx.Frame):
def __init__(self, func):
wx.Frame.__init__(self, None, -1)
self.timer = wx.Timer(self)
# Units for the timer are in milliseconds
self.timer.Start(poll_interval)
self.Bind(wx.EVT_TIMER, self.on_timer)
self.func = func
def on_timer(self, event):
self.func()
# We need a custom wx.App to create our Frame subclass that has the
# wx.Timer to drive the ZMQ event loop.
class IPWxApp(wx.App):
def OnInit(self):
self.frame = TimerFrame(doi)
self.frame.Show(False)
return True
# The redirect=False here makes sure that wx doesn't replace
# sys.stdout/stderr with its own classes.
kernel.app = IPWxApp(redirect=False)
# The import of wx on Linux sets the handler for signal.SIGINT
# to 0. This is a bug in wx or gtk. We fix by just setting it
# back to the Python default.
import signal
if not callable(signal.getsignal(signal.SIGINT)):
signal.signal(signal.SIGINT, signal.default_int_handler)
start_event_loop_wx(kernel.app)
def _notify_stream_qt(kernel, stream):
from IPython.external.qt_for_kernel import QtCore
if _use_appnope() and kernel._darwin_app_nap:
from appnope import nope_scope as context
else:
from IPython.core.interactiveshell import NoOpContext as context
def process_stream_events():
while stream.getsockopt(zmq.EVENTS) & zmq.POLLIN:
with context():
kernel.do_one_iteration()
fd = stream.getsockopt(zmq.FD)
notifier = QtCore.QSocketNotifier(fd, QtCore.QSocketNotifier.Read, kernel.app)
notifier.activated.connect(process_stream_events)
def _notify_stream_qt(kernel, stream):
from IPython.external.qt_for_kernel import QtCore
if _use_appnope() and kernel._darwin_app_nap:
from appnope import nope_scope as context
else:
from IPython.core.interactiveshell import NoOpContext as context
def process_stream_events():
while stream.getsockopt(zmq.EVENTS) & zmq.POLLIN:
with context():
kernel.do_one_iteration()
fd = stream.getsockopt(zmq.FD)
notifier = QtCore.QSocketNotifier(fd, QtCore.QSocketNotifier.Read,
kernel.app)
notifier.activated.connect(process_stream_events)