discovery.py
changeset 726 ae63ccc29444
parent 725 31dade089db5
child 727 3edd2f19bce2
--- a/discovery.py	Wed May 09 00:00:50 2012 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,232 +0,0 @@
-# -*- 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
-import wx
-import  wx.lib.mixins.listctrl  as  listmix
-from Zeroconf import *
-
-import connectors
-
-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)
-
-[ID_DISCOVERYDIALOG, ID_DISCOVERYDIALOGSTATICTEXT1, 
- ID_DISCOVERYDIALOGSERVICESLIST, ID_DISCOVERYDIALOGREFRESHBUTTON, 
- ID_DISCOVERYDIALOGLOCALBUTTON, 
-] = [wx.NewId() for _init_ctrls in range(5)]
-
-class DiscoveryDialog(wx.Dialog, 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.LocalButton, 0, border=0, flag=0)
-        parent.AddSizer(self.ButtonSizer, 0, border=0, flag=0)
-        
-    def _init_coll_ButtonGridSizer_Growables(self, parent):
-        parent.AddGrowableCol(0)
-        parent.AddGrowableCol(1)
-        parent.AddGrowableRow(1)
-    
-    def _init_sizers(self):
-        self.MainSizer = wx.FlexGridSizer(cols=1, hgap=0, rows=3, vgap=10)
-        self.ButtonGridSizer = wx.FlexGridSizer(cols=3, 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_ctrls(self, prnt):
-        wx.Dialog.__init__(self, id=ID_DISCOVERYDIALOG, 
-              name='DiscoveryDialog', parent=prnt,  
-              size=wx.Size(600, 600), style=wx.DEFAULT_DIALOG_STYLE,
-              title='Service Discovery')
-        
-        self.staticText1 = wx.StaticText(id=ID_DISCOVERYDIALOGSTATICTEXT1,
-              label=_('Services available:'), name='staticText1', parent=self,
-              pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)
-        
-        # Set up list control
-        self.ServicesList = AutoWidthListCtrl(id=ID_DISCOVERYDIALOGSERVICESLIST,
-              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.Bind(wx.EVT_LIST_ITEM_SELECTED, self.OnItemSelected, id=ID_DISCOVERYDIALOGSERVICESLIST)
-        self.Bind(wx.EVT_LIST_ITEM_ACTIVATED, self.OnItemActivated, id=ID_DISCOVERYDIALOGSERVICESLIST)
-        
-        listmix.ColumnSorterMixin.__init__(self, 4)
-        
-        self.RefreshButton = wx.Button(id=ID_DISCOVERYDIALOGREFRESHBUTTON,
-              label=_('Refresh'), name='RefreshButton', parent=self,
-              pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)
-        self.Bind(wx.EVT_BUTTON, self.OnRefreshButton, id=ID_DISCOVERYDIALOGREFRESHBUTTON)
-        
-        self.LocalButton = wx.Button(id=ID_DISCOVERYDIALOGLOCALBUTTON,
-              label=_('Local'), name='LocalButton', parent=self,
-              pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)
-        self.Bind(wx.EVT_BUTTON, self.OnLocalButton, id=ID_DISCOVERYDIALOGLOCALBUTTON)
-        
-        self.ButtonSizer = self.CreateButtonSizer(wx.OK|wx.CANCEL|wx.CENTER)
-        
-        self._init_sizers()
-        
-    def __init__(self, parent):
-        self._init_ctrls(parent)
-        
-        self.itemDataMap = {}
-        self.nextItemId = 0
-        
-        self.URI = None
-        self.Browsers = []
-        
-        self.ZeroConfInstance = Zeroconf()
-        self.RefreshList()
-        
-    def __del__(self):
-        for browser in self.Browsers:
-            browser.cancel()
-        self.ZeroConfInstance.close()
-        
-    def RefreshList(self):
-        for browser in self.Browsers:
-            browser.cancel()
-        
-        self.Browsers = []
-        for t in connectors.dnssd_connectors.keys():
-            self.Browsers.append(ServiceBrowser(self.ZeroConfInstance, t, self))
-
-    def OnRefreshButton(self, event):
-        self.ServicesList.DeleteAllItems()
-        self.RefreshList()
-
-    def OnLocalButton(self, event):
-        self.URI = "LOCAL://"
-        self.EndModal(wx.ID_OK)
-        event.Skip()
-
-    # 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 GetURI(self):
-        return self.URI
-        
-    def removeService(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 addService(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.getServiceInfo(type, name)
-
-        svcname  = name.split(".")[0]
-        typename = type.split(".")[0][1:]
-        ip       = str(socket.inet_ntoa(info.getAddress()))
-        port     = info.getPort()
-
-        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
-