Hello,
I am using an open source wxPython GUI that I like very very much. I
have ideas about some modifications I need but I cannot be bothering the
author too much so I must learn some very specific things about Python
in order to make the modification myself. First, I need some help
understanding the code behind this GUI. From reading the comments I
understand that the part of the program written in C++ sends a Python
pickled dictionary to a msg_queue and when Python decodes the pickle the
TextCtrl fields (in the wxPython GUI I am using) receive/display the
appropriate values. And as new messages are received by Python the GUI
fields are cleared to display the new values.
For starters I would like the values to be displayed on the GUI in some
sort of a scrolling panel as they are cleared from the TextCtrl fields
so the user can watch recent activity. I dont know what the best way to
do this would be; the wxpython.scrolledPanel widget? I am unclear if
this can be put on the same GUI pane as the TextCtrl fields are and I am
unclear about if I can take the values from the TextCtrl fields or have
to use the pickle or what? I dont see any variables declared (like in
Visual Basic) so its not like I can just make a list and a textbox and
print it.
More importantly I need to save the values from the TextCtrl fields,
preferable in a CSV file, for later inspection. From looking at the
Logging HOWTO and the Logging Cookbook I see there are alot of loggers
available, or ways to log, but they all look like they are orientated
towards exception handling and debugging so I am unsure what is the best
way to go about this; maybe wxLogTextCtrl ? Utimately I need to log the
values from the TextCtrl fields in a row of comma separated values
adding a time/date stamp as one of the values. I need this log so the
data can easily be worked on in excel or SAS. I need the time/date
stamp for time series analysis.
I attached the code behind the wxPythoin GUI I am using.
Any help will be much appreciated.
Thanks in advance
--
Matt D
------------
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# op25_traffic_panel.py
#
# Copyright 2013 Balint Seeber <balint@crawfish>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
#
import wx
import cPickle as pickle
import gnuradio.gr.gr_threading as _threading
wxDATA_EVENT = wx.NewEventType()
def EVT_DATA_EVENT(win, func):
win.Connect(-1, -1, wxDATA_EVENT, func)
class DataEvent(wx.PyEvent):
def __init__(self, data):
wx.PyEvent.__init__(self)
self.SetEventType (wxDATA_EVENT)
self.data = data
def Clone (self):
self.__class__ (self.GetId())
class traffic_watcher_thread(_threading.Thread):
def __init__(self, rcvd_pktq, event_receiver):
_threading.Thread.__init__(self)
self.setDaemon(1)
self.rcvd_pktq = rcvd_pktq
self.event_receiver = event_receiver
self.keep_running = True
self.start()
def stop(self):
self.keep_running = False
def run(self):
while self.keep_running:
msg = self.rcvd_pktq.delete_head()
de = DataEvent (msg)
wx.PostEvent (self.event_receiver, de)
del de
# A snapshot of important fields in current traffic
#
class TrafficPane(wx.Panel):
# Initializer
#
def __init__(self, parent, msgq):
wx.Panel.__init__(self, parent)
self.msgq = msgq
sizer = wx.GridBagSizer(hgap=10, vgap=10)
self.fields = {}
label = wx.StaticText(self, -1, "DUID:")
sizer.Add(label, pos=(1,1))
field = wx.TextCtrl(self, -1, "", size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(1,2))
self.fields["duid"] = field;
label = wx.StaticText(self, -1, "NAC:")
sizer.Add(label, pos=(2,1))
field = wx.TextCtrl(self, -1, "", size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(2,2))
self.fields["nac"] = field;
label = wx.StaticText(self, -1, "Source:")
sizer.Add(label, pos=(3,1))
field = wx.TextCtrl(self, -1, "", size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(3,2))
self.fields["source"] = field;
label = wx.StaticText(self, -1, "Destination:")
sizer.Add(label, pos=(4,1))
field = wx.TextCtrl(self, -1, "", size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(4,2))
self.fields["dest"] = field;
label = wx.StaticText(self, -1, "MFID:")
sizer.Add(label, pos=(1,4))
field = wx.TextCtrl(self, -1, "", size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(1,5))
self.fields["mfid"] = field;
label = wx.StaticText(self, -1, "ALGID:")
sizer.Add(label, pos=(2,4))
field = wx.TextCtrl(self, -1, "", size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(2,5))
self.fields["algid"] = field;
label = wx.StaticText(self, -1, "KID:")
sizer.Add(label, pos=(3,4))
field = wx.TextCtrl(self, -1, "", size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(3,5))
self.fields["kid"] = field;
label = wx.StaticText(self, -1, "MI:")
sizer.Add(label, pos=(4,4))
field = wx.TextCtrl(self, -1, "", size=(216, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(4,5))
self.fields["mi"] = field;
label = wx.StaticText(self, -1, "TGID:")
sizer.Add(label, pos=(5,4))
field = wx.TextCtrl(self, -1, "", size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(5,5))
self.fields["tgid"] = field;
self.SetSizer(sizer)
self.Fit()
EVT_DATA_EVENT(self, self.display_data)
self.watcher = traffic_watcher_thread(self.msgq, self)
# Clear the field values
#
def clear(self):
for v in self.fields.values():
v.Clear()
def display_data(self,event):
message = event.data
pickled_dict = message.to_string()
attrs = pickle.loads(pickled_dict)
self.update(attrs)
# Update the field values
#
def update(self, field_values):
if field_values['duid'] == 'hdu':
self.clear()
for k,v in self.fields.items():
f = field_values.get(k, None)
if f:
v.SetValue(f)
def main():
return 0
if __name__ == '__main__':
main()
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