多线程的界面操作代码,Python代码库,德仔网

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【Python】多线程的界面操作

作者:DDT / 发布于2013/1/8/ 651

# coding=UTF-8  
import wx
import threading
import random

class WorkerTread(threading.Thread):
		def __init__(self,threadNum,window):
				threading.Thread.__init__(self)
				self.threadNum = threadNum
				self.window = window
				self.timeToQuit = threading.Event()
				self.timeToQuit.clear()
				self.messageCount = random.randint(10,20)
				self.messageDelay = 0.1 + 2.0*random.random()
		def stop(self):
				self.timeToQuit.set()
		def run(self):
				msg = u"线程 %d 执行 %d次 延迟 %1.4f\n" %(self.threadNum,self.messageCount,self.messageDelay)
				wx.CallAfter(self.window.LogMessage,msg)

				for i in range(1,self.messageCount+1):
						self.timeToQuit.wait(self.messageDelay)
						if self.timeToQuit.isSet():
								break
						msg = u"信息 %d 来自于线程 %d\n" % (i,self.threadNum)
						wx.CallAfter(self.window.LogMessage,msg)
				else:
						wx.CallAfter(self.window.ThreadFinished,self)

class MyFrame(wx.Frame):
		def __init__(self):
				wx.Frame.__init__(self,None,title=u"多线程演示界面")
				self.threads = []
				self.count = 0

				Panel = wx.Panel(self)
				startBtn = wx.Button(Panel,-1,u"开启一个线程")
				stopBtn = wx.Button(Panel,-1,u"停止所有线程")
				self.tc = wx.StaticText(Panel,-1,u"工作的线程：00")
				self.log = wx.TextCtrl(Panel,-1,"",style = wx.TE_RICH|wx.TE_MULTILINE)
				inner = wx.BoxSizer(wx.HORIZONTAL)
				inner.Add(startBtn,0,wx.RIGHT,15)
				inner.Add(stopBtn,0,wx.RIGHT,15)
				inner.Add(self.tc,0,wx.ALIGN_CENTER_VERTICAL)
				main = wx.BoxSizer(wx.VERTICAL)
				main.Add(inner,0,wx.ALL,5)
				main.Add(self.log,1,wx.EXPAND|wx.ALL,5)
				Panel.SetSizer(main)

				self.Bind(wx.EVT_BUTTON,self.OnStartButton,startBtn)
				self.Bind(wx.EVT_BUTTON,self.OnStopButton,stopBtn)
				self.Bind(wx.EVT_CLOSE,self.OnCloseWindow)

				self.UpdateCount()

		def OnStartButton(self,evt):
				self.count +=1
				thread = WorkerTread(self.count,self)
				self.threads.append(thread)
				self.UpdateCount()
				thread.start()
				
		def OnStopButton(self,evt):
				self.StopTreads()
				self.UpdateCount()

		def OnCloseWindow(self,evt):
				self.StopTreads()
				self.Destroy()
			
		def StopTreads(self):
				while self.threads:
						thread = self.threads[0]
						thread.stop()
						self.threads.remove(thread)

		def UpdateCount(self):
				self.tc.SetLabel(u"工作线程: %d" % len(self.threads))

		def LogMessage(self,msg):
				self.log.AppendText(msg)

		def ThreadFinished(self,thread):
				self.threads.remove(thread)
				self.UpdateCount()

if __name__=='__main__':
		app = wx.PySimpleApp()
		frm = MyFrame()
		frm.Show()
		app.MainLoop()

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