Hi,
I am creating the first GUI app (wxPython based) using Twisted.
I am facing an issue which I cannot seem to solve/understand due
to lack of trace or anything.
I had a big app written on twisted and now I am creating a login
screen to the app.
The app used to work without any issues. I added the login screen
and the login screen comes up.
But then everything freezes up. I have to force quit the python
application to get anything back. Can anyone help me solve it?
The code is as follows:
import wx
import os
import logging
from twisted.internet import wxreactor
wxreactor.install()
from twisted.internet import reactor #Called only after
wxreactor.install()
from twisted.internet.task import LoopingCall
import clientapp
def opj(path):
""" Convert paths to the platform-specific separator """
st = apply(os.path.join, tuple(path.split('/')))
if path.startswith('/'):
st = '/' + st
return st
class APPApp(wx.App):
def OnInit(self):
self.frame = APPFrame(None, -1, " APP Login", size=(200, 150))
self.panel = APPPanel(self.frame,-1)
#client.run method does the verification etc along with other
items
client = clientapp.setup_app()
call = LoopingCall(client.run)
call.start(.51)
return True
def main():
app = APPApp(0)
reactor.registerWxApp(app)
try:
reactor.run()
except StandardError:
raise
class APPPanel(wx.Panel):
""" APP GUI PANEL
The panel in which the user name and password is typed.
@var ID_LOGIN: Login buttons id. When this button is clicked, the
data
is stored for logging.
"""
ID_LOGIN = wx.NewId()
def __init__(self, parent, id):
self.parent = parent
wx.Panel.__init__(self, parent, id, size=(200,150))
self.quote = wx.StaticText(self, -1, "APP Login",wx.Point(60,
10))
wx.StaticText(self, wx.ID_ANY, "User Name ", wx.Point(20, 33))
wx.StaticText(self, wx.ID_ANY, "Password ", wx.Point(20, 58))
self.usernameBox = wx.TextCtrl(self, wx.ID_ANY, "",
wx.Point(80, 31), wx.Size(100, wx.ID_ANY))
self.usernameBox.SetFocus()
self.passwordBox = wx.TextCtrl(self, wx.ID_ANY, "",
wx.Point(80, 56), wx.Size(100, wx.ID_ANY), style=wx.TE_PASSWORD)
self.button =wx.Button(self, self.ID_LOGIN, "Login", wx.Point
(60, 88))
wx.EVT_BUTTON(parent, self.ID_LOGIN, self.on_login)
def on_login(self, event):
username = self.usernameBox.GetString(0, 128)
password = self.passwordBox.GetString(0, 128)
if username and password:
self.parent.on_login_click(username, password)
class APPTaskBarIcon(wx.TaskBarIcon):
''' TaskBar Icon
So that the application is always alive on the taskbar.
3 operations are possible, DoubleClick on the taskbar would bring
up the
window, right click will bring up options to restore or exit the
tool.
'''
TBMENU_RESTORE = wx.NewId()
TBMENU_CLOSE = wx.NewId()
def __init__(self, frame):
wx.TaskBarIcon.__init__(self)
self.frame = frame
# Set the image
icon = self.MakeIcon(self.frame.get_image())
self.SetIcon(icon, "APP")
self.imgidx = 1
# bind some events
self.Bind(wx.EVT_TASKBAR_LEFT_DCLICK, self.OnTaskBarActivate)
self.Bind(wx.EVT_MENU, self.OnTaskBarActivate,
id=self.TBMENU_RESTORE)
self.Bind(wx.EVT_MENU, self.OnTaskBarClose,
id=self.TBMENU_CLOSE)
def CreatePopupMenu(self):
""" Right Click Popup Menu
This method is called by the base class when it needs to popup
the menu for the default EVT_RIGHT_DOWN event.
"""
menu = wx.Menu()
menu.Append(self.TBMENU_RESTORE, "Restore Window")
menu.Append(self.TBMENU_CLOSE, "Exit APP")
return menu
def MakeIcon(self, img):
""" Return the generated Icon.
This function is required because various platforms have
different
requirements for the icon size.
"""
if "wxMSW" in wx.PlatformInfo:
img = img.Scale(16, 16)
elif "wxGTK" in wx.PlatformInfo:
img = img.Scale(22, 22)
icon = wx.IconFromBitmap(img.ConvertToBitmap() )
return icon
def OnTaskBarActivate(self, evt):
''' Activation code - say DoubleClick etc. It raises the window
'''
if self.frame.IsIconized():
self.frame.Iconize(False)
if not self.frame.IsShown():
self.frame.Show(True)
self.frame.Raise()
def OnTaskBarClose(self, evt):
''' On right click and close, the frame itself is closed '''
wx.CallAfter(self.frame.Close)
class APPFrame(wx.Frame):
def __init__(self, parent, id, title, size=None):
wx.Frame.__init__(self, parent, id, title,
size=size, pos=wx.Point(400, 300))
icon = self.get_icon()
self.SetIcon(icon)
self.tbicon = APPTaskBarIcon(self)
self.Show(True)
self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)
self.Bind(wx.EVT_ICONIZE, self.OnIconify)
def on_login_click(self, username, password):
self.Hide()
def OnCloseWindow(self, event):
if self.tbicon is not None:
self.tbicon.Destroy()
event.Skip()
def OnIconify(self, event):
self.Hide()
def get_image(self):
img= wx.Image(opj('client.ico'), wx.BITMAP_TYPE_ICO)
return img
def get_icon(self):
img = self.get_image()
icon = wx.IconFromBitmap(img.ConvertToBitmap() )
return icon
if __name__ == '__main__':
main()
--------------
If somebody can help me out, I would be much obliged.
--
http://mail.python.org/mailman/listinfo/python-list
