我们从Python开源项目中，提取了以下18个代码示例，用于说明如何使用wx.EventLoopActivator()。
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
def inputhook_wx1(context): """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
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
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 > 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
def inputhook_wx3(context): """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 context.input_is_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
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
