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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/Phoenix/trunk@73128 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
57 lines
1.7 KiB
Python
57 lines
1.7 KiB
Python
##Andrea Gavana
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#!/usr/bin/env python
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# This sample shows hot to take advantage of wx.CallAfter when running a
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# separate thread and updating the GUI in the main thread
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import wx
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import threading
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import time
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class MainFrame(wx.Frame):
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def __init__(self, parent):
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wx.Frame.__init__(self, parent, title='CallAfter example')
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panel = wx.Panel(self)
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self.label = wx.StaticText(panel, label="Ready")
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self.btn = wx.Button(panel, label="Start")
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self.gauge = wx.Gauge(panel)
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sizer = wx.BoxSizer(wx.VERTICAL)
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sizer.Add(self.label, proportion=1, flag=wx.EXPAND)
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sizer.Add(self.btn, proportion=0, flag=wx.EXPAND)
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sizer.Add(self.gauge, proportion=0, flag=wx.EXPAND)
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panel.SetSizerAndFit(sizer)
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self.Bind(wx.EVT_BUTTON, self.OnButton)
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def OnButton(self, event):
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""" This event handler starts the separate thread. """
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self.btn.Enable(False)
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self.gauge.SetValue(0)
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self.label.SetLabel("Running")
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thread = threading.Thread(target=self.LongRunning)
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thread.start()
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def OnLongRunDone(self):
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self.gauge.SetValue(100)
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self.label.SetLabel("Done")
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self.btn.Enable(True)
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def LongRunning(self):
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"""This runs in a different thread. Sleep is used to
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simulate a long running task."""
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time.sleep(3)
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wx.CallAfter(self.gauge.SetValue, 20)
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time.sleep(5)
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wx.CallAfter(self.gauge.SetValue, 70)
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time.sleep(4)
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wx.CallAfter(self.OnLongRunDone)
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if __name__ == "__main__":
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app = wx.App(0)
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frame = MainFrame(None)
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frame.Show()
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app.MainLoop() |