beremiz

fix Traceback if search icon on library panel is clicked, when no

2016-04-22, Andrey Skvortsov
d917c209529d
file isExecutable
fix Traceback if search icon on library panel is clicked, when no
category/item is selected in the library.

The problem is here, that if nothing is selected method GetSelection()
returns root item, that doesn't have any python data associated with it.
This issue seems to be wx3.0 specified, because it doesn't exist
with wx2.8 on Windows.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#This file is part of Beremiz, a Integrated Development Environment for
#programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
#Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
#See COPYING file for copyrights details.
#
#This library 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 2.1 of the License, or (at your option) any later version.
#
#This library 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 library; if not, write to the Free Software
#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import socket, threading
from util import Zeroconf
service_type = '_PYRO._tcp.local.'
class ServicePublisher():
def __init__(self):
# type: fully qualified service type name
self.serviceproperties = {'description':'Beremiz remote PLC'}
self.name = None
self.ip_32b = None
self.port = None
self.server = None
self.service_name = None
self.retrytimer = None
def RegisterService(self, name, ip, port):
try:
self._RegisterService(name, ip, port)
except Exception,e:
self.retrytimer = threading.Timer(2,self.RegisterService,[name, ip, port])
self.retrytimer.start()
def _RegisterService(self, name, ip, port):
# name: fully qualified service name
self.service_name = 'Beremiz_%s.%s'%(name,service_type)
self.name = name
self.port = port
self.server = Zeroconf.Zeroconf(ip)
print "MDNS brodcasting on :"+ip
if ip == "0.0.0.0":
ip = self.gethostaddr()
print "MDNS brodcasted service address :"+ip
self.ip_32b = socket.inet_aton(ip)
self.server.registerService(
Zeroconf.ServiceInfo(service_type,
self.service_name,
self.ip_32b,
self.port,
properties = self.serviceproperties))
self.retrytimer=None
def UnRegisterService(self):
if self.retrytimer is not None:
self.retrytimer.cancel()
self.server.unregisterService(
Zeroconf.ServiceInfo(service_type,
self.service_name,
self.ip_32b,
self.port,
properties = self.serviceproperties))
self.server.close()
self.server = None
def gethostaddr(self, dst = '224.0.1.41'):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
try:
s.connect((dst, 7))
(host, port) = s.getsockname()
s.close()
if host != '0.0.0.0':
return host
except Exception,e:
pass
return socket.gethostbyname(socket.gethostname())