[wxPython] Changing many objects quickly

[Pyro.699]

Hey,

So im teaching myself how to make GUI's using the wxPython libary. Ive been using wxGlade as a building block to help me understand the flow, but ive come into a problem that i cant seem to find a solution for anywheres.

This is my test code:


#!/usr/bin/env python
import wx, sys, random, time, threading

class MainFrame(wx.Frame):
def __init__(self, *args, **kwds):

kwds["style"] = wx.DEFAULT_FRAME_STYLE
wx.Frame.__init__(self, *args, **kwds)

self._x = 14
self._y = 14

self.labels = []
for row in xrange(self._y):
self.labels.append( [] )
for col in xrange(self._x):
self.labels[-1].append(wx.StaticText(self, col+row*self._y, "0", style=wx.ALIGN_CENTRE))

self.runButton = wx.Button(self, -1, "Run")

self.__set_properties()
self.__do_layout()

self.Bind(wx.EVT_BUTTON, self.buttonPress, self.runButton)

def __set_properties(self):
self.SetTitle("MainFrame")

for row in xrange(self._y):
for col in xrange(self._x):
self.labels[row][col].SetMinSize((23, 23))
self.labels[row][col].SetBackgroundColour(wx.Colour(190, 190, 190))
self.labels[row][col].SetFont(wx.Font(10, wx.SCRIPT, wx.NORMAL, wx.BOLD, 0, ""))

def __do_layout(self):
TopSizer = wx.BoxSizer(wx.VERTICAL)
GridHolder = wx.GridSizer(self._x, self._y)

for row in xrange(self._y):
for col in xrange(self._y):
GridHolder.Add(self.labels[row][col], 0, 0, 0)

TopSizer.Add(GridHolder, 1, wx.EXPAND, 0)
TopSizer.Add(self.runButton, 0, wx.ALIGN_CENTER_HORIZONTAL, 0)
self.SetSizer(TopSizer)
TopSizer.Fit(self)
self.Layout()

def buttonPress(self, event):
a = threading.Thread(target=self.doColor)
a.start()

def doColor(self):
msColor = [ [ 0, 0, 0], #0 - Black
[ 75, 0,250], #1 - Blue
[ 0,130, 20], #2 - Green
[250, 0, 40], #3 - Red
[ 40, 0,125], #4 - Purple
[125, 0, 20], #5 - Maroon
[ 40,125,125], #6 - Turquoise
[ 0, 0, 0], #7 - Black
[125,125,125] #8 - Grey
]

for z in range(10000):

rX = random.randrange(0,self._x)
rY = random.randrange(0,self._y)
rV = random.randrange(1,9)

self.labels[rY][rX].SetLabel( str(rV) )
self.labels[rY][rX].SetForegroundColour(wx.Colour(*msColor[rV]))
sys.stdout.write("%i, %i = %i\n"%(rX,rY,rV))


class MyGui(wx.App):
def OnInit(self):
wx.InitAllImageHandlers()
mFrame = MainFrame(None, -1, "")
self.SetTopWindow(mFrame)
mFrame.Show()
return 1

if __name__ == "__main__":
runMe = MyGui(0)
runMe.MainLoop()
Now, after running this code and hitting the 'Run' button, a few things can happen... one... you get this:


The program 'python' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadGC (invalid GC parameter)'.
(Details: serial 4770 error_code 13 request_code 56 minor_code 0)
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the --sync command line
option to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error() function.)

or...


Pango:ERROR:/build/buildd/pango1.0-1.28.0/pango/pango-layout.c:3739:pango_layout_check_lines: assertion failed: (!layout->log_attrs)

or...
The program locks up...

So, im stuck for now... any help?

Thanks
~Cody

[Pyro.699]

Hey, just wondering if anyone has any ideas :)

Thanks
~Cody