As I’m working in my personal project about Thai language. I try to learn GUI programming with wxPython anf face some problem in following code.

[ftf w=”400″ h=”300″ def=”python.xml”]#!/usr/bin/env python
# -*- coding: utf-8 -*-
# generated by wxGlade 0.4 on Tue Mar 21 20:06:06 2006

import wx
import codecs

class MainFrame(wx.Frame):
def __init__(self, *args, **kwds):
# begin wxGlade: MainFrame.__init__
kwds[“style”] = wx.DEFAULT_FRAME_STYLE
wx.Frame.__init__(self, *args, **kwds)

# Tool Bar
self.wdMainFrameToolBar = wx.ToolBar(self, -1)
self.SetToolBar(self.wdMainFrameToolBar)
self.wdMainFrameToolBar.AddLabelTool(wx.NewId(), “Auto”, wx.Bitmap(“C:\\Documents and Settings\\Wason Lewlompaisal\\My Documents\\My Download\\more-smilies\\tango\\dialog-information.png”, wx.BITMAP_TYPE_ANY), wx.NullBitmap, wx.ITEM_CHECK, “Break Thai Word Automatic”, “”)
self.wdMainFrameToolBar.AddLabelTool(wx.NewId(), “ShowZWSP”, wx.Bitmap(“C:\\Documents and Settings\\Wason Lewlompaisal\\My Documents\\My Download\\more-smilies\\tango\\applications-multimedia.png”, wx.BITMAP_TYPE_ANY), wx.NullBitmap, wx.ITEM_CHECK, “Show Zero Width Space in Text Box”, “”)
# Tool Bar end
self.SingleTextControl = wx.TextCtrl(self, -1, “”, style=wx.TE_MULTILINE)

self.__set_properties()
self.__do_layout()

self.Bind(wx.EVT_TOOL, self.OnAutoWordBreak, id=-1)
self.Bind(wx.EVT_TOOL, self.OnShowZWSP, id=-1)
self.Bind(wx.EVT_TEXT, self.OnTextChange, self.SingleTextControl)
# end wxGlade

def __set_properties(self):
# begin wxGlade: MainFrame.__set_properties
self.SetTitle(“Thai Input Demo”)
self.SetSize((400, 300))
self.wdMainFrameToolBar.Realize()
# end wxGlade

def __do_layout(self):
# begin wxGlade: MainFrame.__do_layout
MainGridSizer = wx.GridSizer(1, 1, 0, 0)
MainGridSizer.Add(self.SingleTextControl, 0, wx.EXPAND|wx.ADJUST_MINSIZE, 0)
self.SetAutoLayout(True)
self.SetSizer(MainGridSizer)
self.Layout()
# end wxGlade

def OnAutoWordBreak(self, event): # wxGlade: MainFrame.
print “Event handler `OnAutoWordBreak’ not implemented!”
allText = self.SingleTextControl.GetValue()
print “ALLTEXT>>”, repr(allText)
event.Skip()

def OnShowZWSP(self, event): # wxGlade: MainFrame.
print “Event handler `OnShowZWSP’ not implemented!”
event.Skip()

def OnTextChange(self, event): # wxGlade: MainFrame.
sentence = self.ExtractCurrentSentence()
print “Current Sentence::”, sentence.encode(“utf-8”)

def ExtractCurrentSentence(self):
allText = self.SingleTextControl.GetValue()
print “ALLTEXT>>”, repr(allText)
curPos = self.SingleTextControl.GetLastPosition()
sentenceList = allText.split(u” “)
for word in sentenceList:
print word.encode(“utf-8”), “==>”, len(word)
runPos = 0;
curSentence = 0;
while (True):
if (len(sentenceList[curSentence]) + runPos > curPos – 1):
break
runPos += len(sentenceList[curSentence]) + 1
curSentence += 1
return sentenceList[curSentence]

# end of class MainFrame

class ThaiBreakApp(wx.App):
def OnInit(self):
wx.InitAllImageHandlers()
wdMainFrame = MainFrame(None, -1, “”)
self.SetTopWindow(wdMainFrame)
wdMainFrame.Show()
return 1

# end of class ThaiBreakApp

if __name__ == “__main__”:
app = ThaiBreakApp(0)
app.MainLoop()
[/ftf]

Program seems to be fine at start but when some of That character appear in the TextCtrl the EVT_TEXT which call function OnTextChange just stop working, all thing back to work properly again when all those character removed.

After hours of debugging and searching for information about unicode bug in wxWindows, I noticed that there’s python exception in SPE’s shell. This bug is nothing but SPE’s coding without aware of non-latin chracter.

I’m going to happily sleep now.