Python wx.EventLoop方法代码示例

# 需要导入模块: import wx [as 别名]
# 或者: from wx import EventLoop [as 别名]
def inputhook_wx1():
    """Run the wx event loop by processing pending events only.

    This approach seems to work, but its performance is not great as it
    relies on having PyOS_InputHook called regularly.
    """
    try:
        app = wx.GetApp()
        if app is not None:
            assert wx.Thread_IsMain()

            # Make a temporary event loop and process system events until
            # there are no more waiting, then allow idle events (which
            # will also deal with pending or posted wx events.)
            evtloop = wx.EventLoop()
            ea = wx.EventLoopActivator(evtloop)
            while evtloop.Pending():
                evtloop.Dispatch()
            app.ProcessIdle()
            del ea
    except KeyboardInterrupt:
        pass
    return 0 

# 需要导入模块: import wx [as 别名]
# 或者: from wx import EventLoop [as 别名]
def inputhook_wx1():
    """Run the wx event loop by processing pending events only.

    This approach seems to work, but its performance is not great as it
    relies on having PyOS_InputHook called regularly.
    """
    try:
        app = wx.GetApp()  # @UndefinedVariable
        if app is not None:
            assert wx.Thread_IsMain()  # @UndefinedVariable

            # Make a temporary event loop and process system events until
            # there are no more waiting, then allow idle events (which
            # will also deal with pending or posted wx events.)
            evtloop = wx.EventLoop()  # @UndefinedVariable
            ea = wx.EventLoopActivator(evtloop)  # @UndefinedVariable
            while evtloop.Pending():
                evtloop.Dispatch()
            app.ProcessIdle()
            del ea
    except KeyboardInterrupt:
        pass
    return 0 

# 需要导入模块: import wx [as 别名]
# 或者: from wx import EventLoop [as 别名]
def start_event_loop(self, timeout=0):
        """
        Start an event loop.  This is used to start a blocking event
        loop so that interactive functions, such as ginput and
        waitforbuttonpress, can wait for events.  This should not be
        confused with the main GUI event loop, which is always running
        and has nothing to do with this.

        Call signature::

        start_event_loop(self,timeout=0)

        This call blocks until a callback function triggers
        stop_event_loop() or *timeout* is reached.  If *timeout* is
        <=0, never timeout.

        Raises RuntimeError if event loop is already running.
        """
        if hasattr(self, '_event_loop'):
            raise RuntimeError("Event loop already running")
        id = wx.NewId()
        timer = wx.Timer(self, id=id)
        if timeout > 0:
            timer.Start(timeout*1000, oneShot=True)
            bind(self, wx.EVT_TIMER, self.stop_event_loop, id=id)

        # Event loop handler for start/stop event loop
        self._event_loop = wx.EventLoop()
        self._event_loop.Run()
        timer.Stop() 

# 需要导入模块: import wx [as 别名]
# 或者: from wx import EventLoop [as 别名]
def Run(self, time):
        self.evtloop = wx.EventLoop()
        self.timer = EventLoopTimer(self.check_stdin)
        self.timer.Start(time)
        self.evtloop.Run() 

# 需要导入模块: import wx [as 别名]
# 或者: from wx import EventLoop [as 别名]
def Run(self, time):
        self.evtloop = wx.EventLoop()  # @UndefinedVariable
        self.timer = EventLoopTimer(self.check_stdin)
        self.timer.Start(time)
        self.evtloop.Run() 

# 需要导入模块: import wx [as 别名]
# 或者: from wx import EventLoop [as 别名]
def inputhook_wx3():
    """Run the wx event loop by processing pending events only.

    This is like inputhook_wx1, but it keeps processing pending events
    until stdin is ready.  After processing all pending events, a call to
    time.sleep is inserted.  This is needed, otherwise, CPU usage is at 100%.
    This sleep time should be tuned though for best performance.
    """
    # We need to protect against a user pressing Control-C when IPython is
    # idle and this is running. We trap KeyboardInterrupt and pass.
    try:
        app = wx.GetApp()
        if app is not None:
            assert wx.Thread_IsMain()

            # 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.
            if not callable(signal.getsignal(signal.SIGINT)):
                signal.signal(signal.SIGINT, signal.default_int_handler)

            evtloop = wx.EventLoop()
            ea = wx.EventLoopActivator(evtloop)
            t = clock()
            while not stdin_ready():
                while evtloop.Pending():
                    t = clock()
                    evtloop.Dispatch()
                app.ProcessIdle()
                # We need to sleep at this point to keep the idle CPU load
                # low.  However, if sleep to long, GUI response is poor.  As
                # a compromise, we watch how often GUI events are being processed
                # and switch between a short and long sleep time.  Here are some
                # stats useful in helping to tune this.
                # time    CPU load
                # 0.001   13%
                # 0.005   3%
                # 0.01    1.5%
                # 0.05    0.5%
                used_time = clock() - t
                if used_time > 5*60.0:
                    # print 'Sleep for 5 s'  # dbg
                    time.sleep(5.0)
                elif used_time > 10.0:
                    # print 'Sleep for 1 s'  # dbg
                    time.sleep(1.0)
                elif used_time > 0.1:
                    # Few GUI events coming in, so we can sleep longer
                    # print 'Sleep for 0.05 s'  # dbg
                    time.sleep(0.05)
                else:
                    # Many GUI events coming in, so sleep only very little
                    time.sleep(0.001)
            del ea
    except KeyboardInterrupt:
        pass
    return 0 

# 需要导入模块: import wx [as 别名]
# 或者: from wx import EventLoop [as 别名]
def inputhook_wx3():
    """Run the wx event loop by processing pending events only.

    This is like inputhook_wx1, but it keeps processing pending events
    until stdin is ready.  After processing all pending events, a call to
    time.sleep is inserted.  This is needed, otherwise, CPU usage is at 100%.
    This sleep time should be tuned though for best performance.
    """
    # We need to protect against a user pressing Control-C when IPython is
    # idle and this is running. We trap KeyboardInterrupt and pass.
    try:
        app = wx.GetApp()  # @UndefinedVariable
        if app is not None:
            assert wx.Thread_IsMain()  # @UndefinedVariable

            # 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.
            if not callable(signal.getsignal(signal.SIGINT)):
                signal.signal(signal.SIGINT, signal.default_int_handler)

            evtloop = wx.EventLoop()  # @UndefinedVariable
            ea = wx.EventLoopActivator(evtloop)  # @UndefinedVariable
            t = clock()
            while not stdin_ready():
                while evtloop.Pending():
                    t = clock()
                    evtloop.Dispatch()
                app.ProcessIdle()
                # We need to sleep at this point to keep the idle CPU load
                # low.  However, if sleep to long, GUI response is poor.  As
                # a compromise, we watch how often GUI events are being processed
                # and switch between a short and long sleep time.  Here are some
                # stats useful in helping to tune this.
                # time    CPU load
                # 0.001   13%
                # 0.005   3%
                # 0.01    1.5%
                # 0.05    0.5%
                used_time = clock() - t
                if used_time > 10.0:
                    # print 'Sleep for 1 s'  # dbg
                    time.sleep(1.0)
                elif used_time > 0.1:
                    # Few GUI events coming in, so we can sleep longer
                    # print 'Sleep for 0.05 s'  # dbg
                    time.sleep(0.05)
                else:
                    # Many GUI events coming in, so sleep only very little
                    time.sleep(0.001)
            del ea
    except KeyboardInterrupt:
        pass
    return 0