I come across some cases, where I need to hook a progress bar from WX to my current running python project/script to indicate the current process progress. Some how if you use MainLoop() in child thread will cause the WX session hang and EVT handle will failed. After some study, found that WXAPP class instance and MainLoop have to same namespace. I manage to redesign it and make it work now. Just mail/vote me, if you feel this is useful for your project. E-Mail : cheengshuchin@gmail.com
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Copy to clipboard1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 | import psyco
psyco.full()
#import win32traceutil
import sys
try:
sys.setdefaultencoding('dbcs')
except:
print 'encoding dbcs error!'
import os
if sys.platform == "win32":
import msvcrt
try:
msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
except:
print 'Native std error!'
import gc
import threading
import wx
import gettext
class wxpbr(wx.App):
def __init__(self,parent,*arg,**kwd):
wx.App.__init__(self,redirect=0,*arg,**kwd)
self.parent=parent
self.title=self.parent.title
self.text=self.parent.text
self.max=self.parent.max
self.style=self.parent.style
self.count=self.parent.count
self.status=self.parent.status
self.dlg=0
def OnInit(self):
wx.InitAllImageHandlers()
self.cscpbr=wx.Frame(None, -1, "")
self.SetTopWindow(self.cscpbr)
self.Bind(wx.EVT_TIMER, self.pbrm)
self.t1 = wx.Timer(self.cscpbr)
self.t1.Start(1)
return 1
def pbrm(self, evt):
if self.dlg:
if self.text<>self.parent.text or self.count<>self.parent.count:
self.text=self.parent.text
self.count=self.parent.count
self.parent.status=self.status=self.dlg.Update(self.count,self.text)
else:
self.dlg = wx.ProgressDialog(self.title,self.text,self.max,self.cscpbr,self.style)
self.dlg.Bind(wx.EVT_CLOSE, self.close)
if self.count>=self.max:
self.parent.status=self.status=True
self.close(None)
elif self.parent.stop or (not self.status):
self.parent.status=self.status=False
self.close(None)
def close(self,evt):
self.parent.stop=1
self.dlg.Destroy()
self.cscpbr.Close(True)
class pbr(threading.Thread,object):
def __init__(self,title,text,max,style,*arg,**kwd):
threading.Thread.__init__(self,*arg,**kwd)
self.arg=arg
self.kwd=kwd
self.title=title
self.text=text
self.max=max
self.style=style
self.count=0
self.status=True
self.stop=0
#self.pb=wxpbr(self.title,self.text,self.max,self.style,*self.arg,**self.kwd)
def run(self):
self.pb=wxpbr(self,*self.arg,**self.kwd)
self.pb.MainLoop()
def close(self):
self.stop=1
def pbar(title="Progress dialog example",
text="An informative message",
max=100,
style=wx.PD_CAN_ABORT|wx.PD_AUTO_HIDE|wx.PD_SMOOTH|wx.PD_ELAPSED_TIME|wx.PD_ESTIMATED_TIME|wx.PD_REMAINING_TIME,
*arg,**kwd):
sys.setcheckinterval(0)
gettext.install("wxpbr")
app = pbr(title,text,max,style,*arg,**kwd)
app.start()
return app
def pbardemo():
app=pbar()
for x in range(0,app.max+1):
app.count=x
wx.MilliSleep(100)
app.text="%s%%"%(x)
if app.stop:
break
print app.status
if __name__ == "__main__":
pbardemo()
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This code seems work in windows, but I havent try it in Linux or Mac server. Hope someone can help me to verify on this. This code can modify and extend to use others dialog/WXAPP classes (e.g. TextBox, File/Directory Dialogs) as well. Please enjoy it. Please refer this as well: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/203471
problems on Linux. I did test this under Ubuntu Linux. The recipe runs, but does create an exception on exiting, probably due to the way you close the app: