我们从Python开源项目中，提取了以下23个代码示例，用于说明如何使用wx.Thread_IsMain()。
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_wx2(): """Run the wx event loop, polling for stdin. This version runs the wx eventloop for an undetermined amount of time, during which it periodically checks to see if anything is ready on stdin. If anything is ready on stdin, the event loop exits. The argument to elr.Run controls how often the event loop looks at stdin. This determines the responsiveness at the keyboard. A setting of 1000 enables a user to type at most 1 char per second. I have found that a setting of 10 gives good keyboard response. We can shorten it further, but eventually performance would suffer from calling select/kbhit too often. """ try: app = wx.GetApp() if app is not None: assert wx.Thread_IsMain() elr = EventLoopRunner() # As this time is made shorter, keyboard response improves, but idle # CPU load goes up. 10 ms seems like a good compromise. elr.Run(time=10) # CHANGE time here to control polling interval 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_wx2(): """Run the wx event loop, polling for stdin. This version runs the wx eventloop for an undetermined amount of time, during which it periodically checks to see if anything is ready on stdin. If anything is ready on stdin, the event loop exits. The argument to elr.Run controls how often the event loop looks at stdin. This determines the responsiveness at the keyboard. A setting of 1000 enables a user to type at most 1 char per second. I have found that a setting of 10 gives good keyboard response. We can shorten it further, but eventually performance would suffer from calling select/kbhit too often. """ try: app = wx.GetApp() # @UndefinedVariable if app is not None: assert wx.Thread_IsMain() # @UndefinedVariable elr = EventLoopRunner() # As this time is made shorter, keyboard response improves, but idle # CPU load goes up. 10 ms seems like a good compromise. elr.Run(time=10) # CHANGE time here to control polling interval except KeyboardInterrupt: pass return 0
def inputhook_wx2(context): """Run the wx event loop, polling for stdin. This version runs the wx eventloop for an undetermined amount of time, during which it periodically checks to see if anything is ready on stdin. If anything is ready on stdin, the event loop exits. The argument to elr.Run controls how often the event loop looks at stdin. This determines the responsiveness at the keyboard. A setting of 1000 enables a user to type at most 1 char per second. I have found that a setting of 10 gives good keyboard response. We can shorten it further, but eventually performance would suffer from calling select/kbhit too often. """ try: app = wx.GetApp() if app is not None: assert wx.Thread_IsMain() elr = EventLoopRunner() # As this time is made shorter, keyboard response improves, but idle # CPU load goes up. 10 ms seems like a good compromise. elr.Run(time=10, # CHANGE time here to control polling interval input_is_ready=context.input_is_ready) 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(): """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
