1 #!/usr/bin/env python

     2 # -*- coding: utf-8 -*-

     3 

     4 # This file is part of Beremiz, a Integrated Development Environment for

     5 # programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

     6 #

     7 # Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

     8 # Copyright (C) 2017: Andrey Skvortsov <andrej.skvortzov@gmail.com>

     9 #

    10 # See COPYING file for copyrights details.

    11 #

    12 # This program is free software; you can redistribute it and/or

    13 # modify it under the terms of the GNU General Public License

    14 # as published by the Free Software Foundation; either version 2

    15 # of the License, or (at your option) any later version.

    16 #

    17 # This program is distributed in the hope that it will be useful,

    18 # but WITHOUT ANY WARRANTY; without even the implied warranty of

    19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    20 # GNU General Public License for more details.

    21 #

    22 # You should have received a copy of the GNU General Public License

    23 # along with this program; if not, write to the Free Software

    24 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

    25 

    26 

    27 from __future__ import absolute_import

    28 import socket

    29 import wx

    30 import wx.lib.mixins.listctrl as listmix

    31 from zeroconf import ServiceBrowser, Zeroconf

    32 

    33 service_type = '_PYRO._tcp.local.'

    34 

    35 

    36 class AutoWidthListCtrl(wx.ListCtrl, listmix.ListCtrlAutoWidthMixin):

    37     def __init__(self, parent, id, name, pos=wx.DefaultPosition,

    38                  size=wx.DefaultSize, style=0):

    39         wx.ListCtrl.__init__(self, parent, id, pos, size, style, name=name)

    40         listmix.ListCtrlAutoWidthMixin.__init__(self)

    41 

    42 

    43 [

    44     ID_DISCOVERYDIALOG, ID_DISCOVERYDIALOGSTATICTEXT1,

    45     ID_DISCOVERYDIALOGSERVICESLIST, ID_DISCOVERYDIALOGREFRESHBUTTON,

    46     ID_DISCOVERYDIALOGLOCALBUTTON, ID_DISCOVERYDIALOGIPBUTTON,

    47 ] = [wx.NewId() for _init_ctrls in range(6)]

    48 

    49 

    50 class DiscoveryDialog(wx.Dialog, listmix.ColumnSorterMixin):

    51 

    52     def _init_coll_MainSizer_Items(self, parent):

    53         parent.AddWindow(self.staticText1,    0, border=20, flag=wx.TOP | wx.LEFT | wx.RIGHT | wx.GROW)

    54         parent.AddWindow(self.ServicesList,   0, border=20, flag=wx.LEFT | wx.RIGHT | wx.GROW)

    55         parent.AddSizer(self.ButtonGridSizer, 0, border=20, flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.GROW)

    56 

    57     def _init_coll_MainSizer_Growables(self, parent):

    58         parent.AddGrowableCol(0)

    59         parent.AddGrowableRow(1)

    60 

    61     def _init_coll_ButtonGridSizer_Items(self, parent):

    62         parent.AddWindow(self.RefreshButton, 0, border=0, flag=0)

    63         parent.AddWindow(self.LocalButton, 0, border=0, flag=0)

    64         parent.AddWindow(self.IpButton, 0, border=0, flag=0)

    65         parent.AddSizer(self.ButtonSizer, 0, border=0, flag=0)

    66 

    67     def _init_coll_ButtonGridSizer_Growables(self, parent):

    68         parent.AddGrowableCol(0)

    69         parent.AddGrowableCol(1)

    70         parent.AddGrowableRow(0)

    71 

    72     def _init_sizers(self):

    73         self.MainSizer = wx.FlexGridSizer(cols=1, hgap=0, rows=3, vgap=10)

    74         self.ButtonGridSizer = wx.FlexGridSizer(cols=4, hgap=5, rows=1, vgap=0)

    75 

    76         self._init_coll_MainSizer_Items(self.MainSizer)

    77         self._init_coll_MainSizer_Growables(self.MainSizer)

    78         self._init_coll_ButtonGridSizer_Items(self.ButtonGridSizer)

    79         self._init_coll_ButtonGridSizer_Growables(self.ButtonGridSizer)

    80 

    81         self.SetSizer(self.MainSizer)

    82 

    83     def _init_list_ctrl(self):

    84         # Set up list control

    85         self.ServicesList = AutoWidthListCtrl(

    86             id=ID_DISCOVERYDIALOGSERVICESLIST,

    87             name='ServicesList', parent=self, pos=wx.Point(0, 0), size=wx.Size(0, 0),

    88             style=wx.LC_REPORT | wx.LC_EDIT_LABELS | wx.LC_SORT_ASCENDING | wx.LC_SINGLE_SEL)

    89         self.ServicesList.InsertColumn(0, _('NAME'))

    90         self.ServicesList.InsertColumn(1, _('TYPE'))

    91         self.ServicesList.InsertColumn(2, _('IP'))

    92         self.ServicesList.InsertColumn(3, _('PORT'))

    93         self.ServicesList.SetColumnWidth(0, 150)

    94         self.ServicesList.SetColumnWidth(1, 150)

    95         self.ServicesList.SetColumnWidth(2, 150)

    96         self.ServicesList.SetColumnWidth(3, 150)

    97         self.ServicesList.SetInitialSize(wx.Size(-1, 300))

    98         self.Bind(wx.EVT_LIST_ITEM_SELECTED, self.OnItemSelected, id=ID_DISCOVERYDIALOGSERVICESLIST)

    99         self.Bind(wx.EVT_LIST_ITEM_ACTIVATED, self.OnItemActivated, id=ID_DISCOVERYDIALOGSERVICESLIST)

   100 

   101     def _init_ctrls(self, prnt):

   102         self.staticText1 = wx.StaticText(

   103             id=ID_DISCOVERYDIALOGSTATICTEXT1,

   104             label=_('Services available:'), name='staticText1', parent=self,

   105             pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)

   106 

   107         self.RefreshButton = wx.Button(

   108             id=ID_DISCOVERYDIALOGREFRESHBUTTON,

   109             label=_('Refresh'), name='RefreshButton', parent=self,

   110             pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)

   111         self.Bind(wx.EVT_BUTTON, self.OnRefreshButton, id=ID_DISCOVERYDIALOGREFRESHBUTTON)

   112 

   113         self.LocalButton = wx.Button(

   114             id=ID_DISCOVERYDIALOGLOCALBUTTON,

   115             label=_('Local'), name='LocalButton', parent=self,

   116             pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)

   117         self.Bind(wx.EVT_BUTTON, self.OnLocalButton, id=ID_DISCOVERYDIALOGLOCALBUTTON)

   118 

   119         self.IpButton = wx.Button(

   120             id=ID_DISCOVERYDIALOGIPBUTTON,

   121             label=_('Add IP'), name='IpButton', parent=self,

   122             pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)

   123         self.Bind(wx.EVT_BUTTON, self.OnIpButton, id=ID_DISCOVERYDIALOGIPBUTTON)

   124 

   125         self.ButtonSizer = self.CreateButtonSizer(wx.OK | wx.CANCEL | wx.CENTER)

   126 

   127         self._init_sizers()

   128         self.Fit()

   129 

   130     def __init__(self, parent):

   131         wx.Dialog.__init__(

   132             self, id=ID_DISCOVERYDIALOG,

   133             name='DiscoveryDialog', parent=parent,

   134             style=wx.DEFAULT_DIALOG_STYLE,

   135             title=_('Service Discovery'))

   136 

   137         self._init_list_ctrl()

   138         listmix.ColumnSorterMixin.__init__(self, 4)

   139 

   140         self._init_ctrls(parent)

   141 

   142         self.itemDataMap = {}

   143         self.nextItemId = 0

   144 

   145         self.URI = None

   146         self.Browser = None

   147 

   148         self.ZeroConfInstance = Zeroconf()

   149         self.RefreshList()

   150         self.LatestSelection = None

   151 

   152     def __del__(self):

   153         if self.Browser is not None:

   154             self.Browser.cancel()

   155         self.ZeroConfInstance.close()

   156 

   157     def RefreshList(self):

   158         if self.Browser is not None:

   159             self.Browser.cancel()

   160         self.Browser = ServiceBrowser(self.ZeroConfInstance, service_type, self)

   161 

   162     def OnRefreshButton(self, event):

   163         self.ServicesList.DeleteAllItems()

   164         self.RefreshList()

   165 

   166     def OnLocalButton(self, event):

   167         self.URI = "LOCAL://"

   168         self.EndModal(wx.ID_OK)

   169         event.Skip()

   170 

   171     def OnIpButton(self, event):

   172         def GetColText(col):

   173             return self.getColumnText(self.LatestSelection, col)

   174 

   175         if self.LatestSelection is not None:

   176             self.URI = "%s://%s:%s" % tuple(map(GetColText, (1, 2, 3)))

   177             self.EndModal(wx.ID_OK)

   178         event.Skip()

   179 

   180     # Used by the ColumnSorterMixin, see wx/lib/mixins/listctrl.py

   181     def GetListCtrl(self):

   182         return self.ServicesList

   183 

   184     def getColumnText(self, index, col):

   185         item = self.ServicesList.GetItem(index, col)

   186         return item.GetText()

   187 

   188     def OnItemSelected(self, event):

   189         self.SetURI(event.m_itemIndex)

   190         event.Skip()

   191 

   192     def OnItemActivated(self, event):

   193         self.SetURI(event.m_itemIndex)

   194         self.EndModal(wx.ID_OK)

   195         event.Skip()

   196 

   197 #    def SetURI(self, idx):

   198 #        connect_type = self.getColumnText(idx, 1)

   199 #        connect_address = self.getColumnText(idx, 2)

   200 #        connect_port = self.getColumnText(idx, 3)

   201 #

   202 #        self.URI = "%s://%s:%s"%(connect_type, connect_address, connect_port)

   203 

   204     def SetURI(self, idx):

   205         self.LatestSelection = idx

   206         svcname = self.getColumnText(idx, 0)

   207         connect_type = self.getColumnText(idx, 1)

   208         self.URI = "%s://%s" % (connect_type, svcname + '.' + service_type)

   209 

   210     def GetURI(self):

   211         return self.URI

   212 

   213     def remove_service(self, zeroconf, _type, name):

   214         wx.CallAfter(self._removeService, name)

   215 

   216     def _removeService(self, name):

   217         '''

   218         called when a service with the desired type goes offline.

   219         '''

   220 

   221         # loop through the list items looking for the service that went offline

   222         for idx in xrange(self.ServicesList.GetItemCount()):

   223             # this is the unique identifier assigned to the item

   224             item_id = self.ServicesList.GetItemData(idx)

   225 

   226             # this is the full typename that was received by addService

   227             item_name = self.itemDataMap[item_id][4]

   228 

   229             if item_name == name:

   230                 self.ServicesList.DeleteItem(idx)

   231                 break

   232 

   233     def add_service(self, zeroconf, _type, name):

   234         wx.CallAfter(self._addService, _type, name)

   235 

   236     def _addService(self, _type, name):

   237         '''

   238         called when a service with the desired type is discovered.

   239         '''

   240         info = self.ZeroConfInstance.get_service_info(_type, name)

   241         svcname = name.split(".")[0]

   242         typename = _type.split(".")[0][1:]

   243         ip = str(socket.inet_ntoa(info.address))

   244         port = info.port

   245 

   246         num_items = self.ServicesList.GetItemCount()

   247 

   248         # display the new data in the list

   249         new_item = self.ServicesList.InsertStringItem(num_items, svcname)

   250         self.ServicesList.SetStringItem(new_item, 1, "%s" % typename)

   251         self.ServicesList.SetStringItem(new_item, 2, "%s" % ip)

   252         self.ServicesList.SetStringItem(new_item, 3, "%s" % port)

   253 

   254         # record the new data for the ColumnSorterMixin

   255         # we assign every list item a unique id (that won't change when items

   256         # are added or removed)

   257         self.ServicesList.SetItemData(new_item, self.nextItemId)

   258 

   259         # the value of each column has to be stored in the itemDataMap

   260         # so that ColumnSorterMixin knows how to sort the column.

   261 

   262         # "name" is included at the end so that self.removeService

   263         # can access it.

   264         self.itemDataMap[self.nextItemId] = [svcname, typename, ip, port, name]

   265 

   266         self.nextItemId += 1