wxPython having trouble with frame objects

CM cmpython at gmail.com
Fri May 1 05:35:05 CEST 2009


On Apr 30, 9:54 pm, Soumen banerjee <soume... at gmail.com> wrote:
> Hello,
> I am using wxglade to design a gui which i am using in another script.
> Here are the codes
>
> The main file:
> import wx,gui,threading
> class guithread(threading.Thread):
>    def run(self):
>        app = wx.PySimpleApp(0)
>        wx.InitAllImageHandlers()
>        self.frame_1 = gui.MyFrame(None, -1, "")
>        app.SetTopWindow(self.frame_1)
>        self.frame_1.Show()
>        app.MainLoop()
> gui1=guithread()
> gui1.start()
> class changer(threading.Thread):
>    def run(self):
>        gui1.frame_1.text_ctrl_1.Setvalue("hello")
> chang=changer()
> chang.start()
>
> and The GUI file (gui.py, imported in the above)
> import wx
>
> # begin wxGlade: extracode
> # end wxGlade
>
> class MyFrame(wx.Frame):
>    def __init__(self, *args, **kwds):
>        # begin wxGlade: MyFrame.__init__
>        kwds["style"] = wx.DEFAULT_FRAME_STYLE
>        wx.Frame.__init__(self, *args, **kwds)
>        self.text_ctrl_1 = wx.TextCtrl(self, -1, "")
>        self.slider_1 = wx.Slider(self, -1, 0, 0, 10)
>        self.Open = wx.Button(self, -1, "Open")
>        self.button_4 = wx.Button(self, -1, "Pause/Resume")
>        self.button_5 = wx.Button(self, -1, "Quit")
>
>        self.__set_properties()
>        self.__do_layout()
>
>        self.Bind(wx.EVT_COMMAND_SCROLL, self.slider, self.slider_1)
>        self.Bind(wx.EVT_BUTTON, self.open, self.Open)
>        self.Bind(wx.EVT_BUTTON, self.pause, self.button_4)
>        self.Bind(wx.EVT_BUTTON, self.quit, self.button_5)
>        # end wxGlade
>
>    def __set_properties(self):
>        # begin wxGlade: MyFrame.__set_properties
>        self.SetTitle("frame_1")
>        self.SetSize((522, 457))
>        # end wxGlade
>
>    def __do_layout(self):
>        # begin wxGlade: MyFrame.__do_layout
>        sizer_1 = wx.BoxSizer(wx.VERTICAL)
>        sizer_2 = wx.BoxSizer(wx.VERTICAL)
>        sizer_3 = wx.BoxSizer(wx.HORIZONTAL)
>        sizer_2.Add(self.text_ctrl_1, 7, wx.EXPAND, 0)
>        sizer_2.Add(self.slider_1, 0, wx.EXPAND, 0)
>        sizer_3.Add(self.Open, 0, wx.LEFT, 70)
>        sizer_3.Add((52, 20), 0, 0, 0)
>        sizer_3.Add(self.button_4, 0, wx.ALIGN_CENTER_HORIZONTAL, 0)
>        sizer_3.Add((55, 23), 0, 0, 0)
>        sizer_3.Add(self.button_5, 0, 0, 0)
>        sizer_2.Add(sizer_3, 1, wx.EXPAND, 0)
>        sizer_1.Add(sizer_2, 1, wx.EXPAND, 0)
>        self.SetSizer(sizer_1)
>        self.Layout()
>        # end wxGlade
>
>    def slider(self, event): # wxGlade: MyFrame.<event_handler>
>        print "Event handler `slider' not implemented!"
>        event.Skip()
>
>    def open(self, event): # wxGlade: MyFrame.<event_handler>
>        print "Event handler `open' not implemented!"
>        event.Skip()
>
>    def pause(self, event): # wxGlade: MyFrame.<event_handler>
>        print "Event handler `pause' not implemented!"
>        event.Skip()
>
>    def quit(self, event): # wxGlade: MyFrame.<event_handler>
>        print "Event handler `quit' not implemented!"
>        event.Skip()
>
> # end of class MyFrame
>
> if __name__ == "__main__":
>    app = wx.PySimpleApp(0)
>    wx.InitAllImageHandlers()
>    frame_1 = MyFrame(None, -1, "")
>    app.SetTopWindow(frame_1)
>    frame_1.Show()
>    app.MainLoop()
>
> The problem here is that when i run the main file, i am told that
> 'guithread' object has no attribute 'frame_1' whereas i seem to have
> defined
> self.frame_1=gui.MyFrame etc.

Your statement above means that self--that is, the instance of
your main class--has an attribute called frame_1, and that name
refers to an instance of the MyFrame class from the gui module.

It does not mean that the guithread object has an attribute named
frame_1.  In order to do that, you should have written:

guithread.frame_1 = something

> The idea here is to access a gui element running in a thread from a
> separate thread. Please help

I would post wxPython related questions on the wxPython mailing
list, which is excellent.
http://www.wxpython.org/maillist.php

HTH,
Che



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