Это пример, основанный на коде, который я рекомендовал в своем комментарии.
Кнопка Пуск / Стоп запускает или останавливает загрузку файла.
Кнопка Other task просто печатает содержимое полей textctrl какдоказательство того, что программа не заблокирована потоком загрузки файла.
import wx
import time
from threading import Thread
import wx.lib.newevent
progress_event, EVT_PROGRESS_EVENT = wx.lib.newevent.NewEvent()
load_status=["File Loading","File Loaded","Cancelled"]
class Model(Thread):
def __init__(self,parent):
Thread.__init__(self)
self.stopthread = 0
self.target = parent
#self.start()
def run(self):
line_counter = 0
with open('../xxx.html', 'r') as f:
while not self.stopthread:
line = f.readline()
if not line:
break
line_counter += 1
print(line_counter)
if self.stopthread:
break
time.sleep(0.05)
evt = progress_event(count=line_counter, status=self.stopthread)
wx.PostEvent(self.target, evt)
if self.stopthread == 0:
self.stopthread = 1
evt = progress_event(count=line_counter, status=self.stopthread)
wx.PostEvent(self.target, evt)
def terminate(self):
self.stopthread = 2
class View(wx.Frame):
def __init__(self, parent, title):
super(View, self).__init__(parent, title=title, size=(400, 400))
self.InitUI()
def InitUI(self):
self.vbox = wx.BoxSizer(wx.VERTICAL)
self.fgs = wx.FlexGridSizer(6, 2, 10, 25)
id = wx.StaticText(self, label="ID:")
firstName = wx.StaticText(self, label="First name:")
lastName = wx.StaticText(self, label="Last name:")
self.id = wx.TextCtrl(self)
self.firstName = wx.TextCtrl(self)
self.lastName = wx.TextCtrl(self)
self.stop = wx.Button(self, -1, "Start")
self.other = wx.Button(self, -1, "Other task")
self.fgs.AddMany([id, (self.id, 1, wx.EXPAND),
firstName, (self.firstName, 1, wx.EXPAND),
lastName, (self.lastName, 1, wx.EXPAND),
(self.stop,1,wx.EXPAND),
(self.other,1,wx.EXPAND)])
self.vbox.Add(self.fgs, proportion=1, flag=wx.ALL | wx.EXPAND,border=15)
#Bind to the progress event issued by the thread
self.Bind(EVT_PROGRESS_EVENT, self.OnProgress)
#Bind to Stop button
self.stop.Bind(wx.EVT_BUTTON, self.OnStartStop)
#Bind to Other task button
self.other.Bind(wx.EVT_BUTTON, self.OnOther)
#Bind to Exit on frame close
self.Bind(wx.EVT_CLOSE, self.OnExit)
self.SetSizer(self.vbox)
self.Layout()
self.statusbar = self.CreateStatusBar(2)
self.text = wx.StaticText(self.statusbar,-1,("No File loaded"))
self.progress = wx.Gauge(self.statusbar, range=20)
sizer = wx.BoxSizer(wx.HORIZONTAL)
sizer.Add(self.text, 0, wx.ALIGN_TOP|wx.ALL, 5)
sizer.Add(self.progress, 1, wx.ALIGN_TOP|wx.ALL, 5)
self.statusbar.SetSizer(sizer)
#wx.BeginBusyCursor()
self.loadthread = Model(self)
def OnProgress(self, event):
self.text.SetLabel(load_status[event.status])
#self.progress.SetValue(event.count)
#or for indeterminate progress
self.progress.Pulse()
if event.status != 0:
wx.EndBusyCursor()
self.Update()
time.sleep(1)
#self.statusbar.Hide()
#Re-set thread in case it needs to be restarted
self.loadthread = Model(self)
self.stop.SetLabel("Start")
self.progress.SetValue(0)
self.text.SetLabel("")
def OnStartStop(self, event):
if self.loadthread.isAlive():
self.loadthread.terminate() # Shutdown the thread
self.loadthread.join() # Wait for it to finish
#Re-set thread in case it needs to be restarted
self.loadthread = Model(self)
self.stop.SetLabel("Start")
self.progress.SetValue(0)
self.text.SetLabel("")
else:
wx.BeginBusyCursor()
self.loadthread.start()
self.stop.SetLabel("Stop")
def OnExit(self, event):
if self.loadthread.isAlive():
self.loadthread.terminate() # Shutdown the thread
self.loadthread.join() # Wait for it to finish
self.Destroy()
def OnOther(self, event):
print("Other Task")
print(self.id.GetValue())
print(self.firstName.GetValue())
print(self.lastName.GetValue())
class Controller:
def __init__(self):
self.view = View(None, title='Test')
self.view.Show()
def main():
app = wx.App()
controller = Controller()
app.MainLoop()
if __name__ == '__main__':
main()
