#!/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
# Copyright (C) 2017: Andrey Skvortsov <andrej.skvortzov@gmail.com>
#
# See COPYING file for copyrights details.
#
# 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.
from __future__ import absolute_import
import socket
import wx
import wx.lib.mixins.listctrl as listmix
from zeroconf import ServiceBrowser, Zeroconf
service_type = '_PYRO._tcp.local.'
class AutoWidthListCtrl(wx.ListCtrl, listmix.ListCtrlAutoWidthMixin):
def __init__(self, parent, id, name, pos=wx.DefaultPosition,
size=wx.DefaultSize, style=0):
wx.ListCtrl.__init__(self, parent, id, pos, size, style, name=name)
listmix.ListCtrlAutoWidthMixin.__init__(self)
class DiscoveryPanel(wx.Panel, listmix.ColumnSorterMixin):
def _init_coll_MainSizer_Items(self, parent):
parent.AddWindow(self.staticText1, 0, border=20, flag=wx.TOP | wx.LEFT | wx.RIGHT | wx.GROW)
parent.AddWindow(self.ServicesList, 0, border=20, flag=wx.LEFT | wx.RIGHT | wx.GROW)
parent.AddSizer(self.ButtonGridSizer, 0, border=20, flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.GROW)
def _init_coll_MainSizer_Growables(self, parent):
parent.AddGrowableCol(0)
parent.AddGrowableRow(1)
def _init_coll_ButtonGridSizer_Items(self, parent):
parent.AddWindow(self.RefreshButton, 0, border=0, flag=0)
parent.AddWindow(self.ByIPCheck, 0, border=0, flag=0)
def _init_coll_ButtonGridSizer_Growables(self, parent):
parent.AddGrowableCol(0)
parent.AddGrowableRow(0)
def _init_sizers(self):
self.MainSizer = wx.FlexGridSizer(cols=1, hgap=0, rows=3, vgap=10)
self.ButtonGridSizer = wx.FlexGridSizer(cols=2, hgap=5, rows=1, vgap=0)
self._init_coll_MainSizer_Items(self.MainSizer)
self._init_coll_MainSizer_Growables(self.MainSizer)
self._init_coll_ButtonGridSizer_Items(self.ButtonGridSizer)
self._init_coll_ButtonGridSizer_Growables(self.ButtonGridSizer)
self.SetSizer(self.MainSizer)
def _init_list_ctrl(self):
# Set up list control
listID = wx.NewId()
self.ServicesList = AutoWidthListCtrl(
id=listID,
name='ServicesList', parent=self, pos=wx.Point(0, 0), size=wx.Size(0, 0),
style=wx.LC_REPORT | wx.LC_EDIT_LABELS | wx.LC_SORT_ASCENDING | wx.LC_SINGLE_SEL)
self.ServicesList.InsertColumn(0, _('NAME'))
self.ServicesList.InsertColumn(1, _('TYPE'))
self.ServicesList.InsertColumn(2, _('IP'))
self.ServicesList.InsertColumn(3, _('PORT'))
self.ServicesList.SetColumnWidth(0, 150)
self.ServicesList.SetColumnWidth(1, 150)
self.ServicesList.SetColumnWidth(2, 150)
self.ServicesList.SetColumnWidth(3, 150)
self.ServicesList.SetInitialSize(wx.Size(-1, 300))
self.Bind(wx.EVT_LIST_ITEM_SELECTED, self.OnItemSelected, id=listID)
self.Bind(wx.EVT_LIST_ITEM_ACTIVATED, self.OnItemActivated, id=listID)
def _init_ctrls(self, prnt):
self.staticText1 = wx.StaticText(
label=_('Services available:'), name='staticText1', parent=self,
pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)
refreshID = wx.NewId()
self.RefreshButton = wx.Button(
id=refreshID,
label=_('Refresh'), name='RefreshButton', parent=self,
pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)
self.Bind(wx.EVT_BUTTON, self.OnRefreshButton, id=refreshID)
self.ByIPCheck = wx.CheckBox(self, label=_("Use IP instead of Service Name"))
self._init_sizers()
self.Fit()
def __init__(self, parent):
wx.Panel.__init__(self, parent)
self._init_list_ctrl()
listmix.ColumnSorterMixin.__init__(self, 4)
self._init_ctrls(parent)
self.itemDataMap = {}
self.nextItemId = 0
self.URI = None
self.Browser = None
self.ZeroConfInstance = Zeroconf()
self.RefreshList()
self.LatestSelection = None
def __del__(self):
if self.Browser is not None:
self.Browser.cancel()
self.ZeroConfInstance.close()
def RefreshList(self):
if self.Browser is not None:
self.Browser.cancel()
self.Browser = ServiceBrowser(self.ZeroConfInstance, service_type, self)
def OnRefreshButton(self, event):
self.ServicesList.DeleteAllItems()
self.RefreshList()
# Used by the ColumnSorterMixin, see wx/lib/mixins/listctrl.py
def GetListCtrl(self):
return self.ServicesList
def getColumnText(self, index, col):
item = self.ServicesList.GetItem(index, col)
return item.GetText()
def OnItemSelected(self, event):
self.SetURI(event.m_itemIndex)
event.Skip()
def OnItemActivated(self, event):
self.SetURI(event.m_itemIndex)
self.EndModal(wx.ID_OK)
event.Skip()
# def SetURI(self, idx):
# connect_type = self.getColumnText(idx, 1)
# connect_address = self.getColumnText(idx, 2)
# connect_port = self.getColumnText(idx, 3)
#
# self.URI = "%s://%s:%s"%(connect_type, connect_address, connect_port)
def SetURI(self, idx):
self.LatestSelection = idx
svcname = self.getColumnText(idx, 0)
connect_type = self.getColumnText(idx, 1)
self.URI = "%s://%s" % (connect_type, svcname + '.' + service_type)
def GetURI(self):
if self.LatestSelection is not None:
if self.ByIPCheck.IsChecked():
self.URI = "%s://%s:%s" % tuple(
map(lambda col:self.getColumnText(self.LatestSelection, col),
(1, 2, 3)))
return self.URI
return None
def remove_service(self, zeroconf, _type, name):
wx.CallAfter(self._removeService, name)
def _removeService(self, name):
'''
called when a service with the desired type goes offline.
'''
# loop through the list items looking for the service that went offline
for idx in xrange(self.ServicesList.GetItemCount()):
# this is the unique identifier assigned to the item
item_id = self.ServicesList.GetItemData(idx)
# this is the full typename that was received by addService
item_name = self.itemDataMap[item_id][4]
if item_name == name:
self.ServicesList.DeleteItem(idx)
break
def add_service(self, zeroconf, _type, name):
wx.CallAfter(self._addService, _type, name)
def _addService(self, _type, name):
'''
called when a service with the desired type is discovered.
'''
info = self.ZeroConfInstance.get_service_info(_type, name)
svcname = name.split(".")[0]
typename = _type.split(".")[0][1:]
ip = str(socket.inet_ntoa(info.address))
port = info.port
num_items = self.ServicesList.GetItemCount()
# display the new data in the list
new_item = self.ServicesList.InsertStringItem(num_items, svcname)
self.ServicesList.SetStringItem(new_item, 1, "%s" % typename)
self.ServicesList.SetStringItem(new_item, 2, "%s" % ip)
self.ServicesList.SetStringItem(new_item, 3, "%s" % port)
# record the new data for the ColumnSorterMixin
# we assign every list item a unique id (that won't change when items
# are added or removed)
self.ServicesList.SetItemData(new_item, self.nextItemId)
# the value of each column has to be stored in the itemDataMap
# so that ColumnSorterMixin knows how to sort the column.
# "name" is included at the end so that self.removeService
# can access it.
self.itemDataMap[self.nextItemId] = [svcname, typename, ip, port, name]
self.nextItemId += 1