"""This module enables wxPython and twisted to peacefully co-exist. It does this by running wxPython in the main thread and starting a secondary thread for the twisted library. It also provides a set of tools to enable communication between the two librarys WARNING: DON'T use setTimeout on deferreds made/used in wx thread! """ import wx from threading import Thread from twisted.internet import reactor from twisted.python import threadable from twisted.internet.defer import maybeDeferred, Deferred from time import sleep # Make our own wxEvent for responding to messages wxEVT_RESPONSE = wx.NewEventType() class ResponseEvent(wx.PyCommandEvent): """This is our event used to pass net info (success, failure, progress, and status) to the gui""" def __init__(self, func, onSuccess, onFailure, *params, **kwparams): wx.PyCommandEvent.__init__(self, wxEVT_RESPONSE, 1) self.func = func self.onSuccess = onSuccess self.onFailure = onFailure self.params = params self.kwparams = kwparams class TwistedThread(Thread): """Starts twisted in a secondary thread. It uses "commands" which are calls to the net thread from the gui thread and "responses" which are calls to the gui thread from the net thread but as both "commands" and "responses" have "onSuccess" and "onFailure" callbacks which must again cross the thread boundary, these are reversed so: A call from gui to net is a command, and its onSuccess call is a response but a call from net to gui is a "response" and its onSuccess call is a "command" so try not to get confused... """ def __init__(self, app, twistedLogFileName=None): """'app' is a wx.App instance""" Thread.__init__(self) self.app = None self.twistedLogFileName = twistedLogFileName self.setApp(app) ThreadCommand.twistedThread = self if app: self.running = True self.start() def run(self): threadable.init(1) if self.twistedLogFileName: from twisted.python import log self.log = log self.log.startLogging(open(self.twistedLogFileName, 'w'), 0) self.log.msg('Started') reactor.run(installSignalHandlers=0) # Methods called from gui thread def stop(self): """Call to cleanup the reactor""" ThreadCommand((self._doStop, (), {}), self._onStopped, self._onStopFailed) def _onStopped(self, res): """Called once the reactor has stopped""" self.running = False def _onStopFailed(self, reason): self.running = False raise Exception('Could not stop reactor: %s' % reason) def setApp(self, app): """Call this first of all and every time you change your application object (like in some testing programs) It makes the app subscribe to our special events so that it can call your callback functions. """ if app is not self.app: if self.app: self.app.Disconnect(1, 1, wxEVT_RESPONSE, self._runResponse) self.app = app self.app.Connect(1, 1, wxEVT_RESPONSE, self._runResponse) def runCommand(self, tc): """Called from the gui thread, pass a ThreadCommand instance to the network""" reactor.callFromThread(self._doRunCommand, tc) def _runResponse(self, evt): """Passes on a response from the net thread. Called from wx main loop on reception of an wxEVT_RESPONSE""" d = maybeDeferred(evt.func, *evt.params, **evt.kwparams) if evt.onSuccess: def onDone(r): simpleCommand((evt.onSuccess, (r,), {})) d.addCallback(onDone) if evt.onFailure: def onFail(r): simpleCommand((evt.onFailure, (r,), {})) d.addErrback(onFail) # Methods called from net thread def _doStop(self, tc): reactor.stop() def _doRunCommand(self, tc): """Called in the net thread to execute a gui command""" # Run the command and get a deferred if tc.passTC: d = maybeDeferred(tc.command[0], tc, *tc.command[1], **tc.command[2]) else: d = maybeDeferred(tc.command[0], *tc.command[1], **tc.command[2]) if tc.onSuccess: d.addCallback(self._success, tc) if tc.onFailure: d.addErrback(self._failure, tc) def _success(self, result, tc): """Called from the net thread. Appends a ThreadCommand success callback to the gui thread's queue""" if tc.param: evt = ResponseEvent(tc.onSuccess, None, None, tc.param, result) else: evt = ResponseEvent(tc.onSuccess, None, None, result) self.app.AddPendingEvent(evt) def _failure(self, reason, tc): """Called from the net thread. Appends a ThreadCommand failure callback to the gui thread's queue""" if tc.param: evt = ResponseEvent(tc.onFailure, None, None, tc.param, reason) else: evt = ResponseEvent(tc.onFailure, None, None, reason) self.app.AddPendingEvent(evt) # Constants for ThreadCommand states QUEUED, RUNNING, SUCCEEDED, FAILED, CANCELLED = 'queued', 'running', 'succeeded', 'failed', 'cancelled' class ThreadCommand(object): """This object represents a command from the gui to the network library""" twistedThread = None # Filled when a TwistedThread instance is created def __init__(self, command, onSuccess, onFailure, param=None, onStatusReport=None, onProgressReport=None, onCustomReport=None, passTC=True): """'command' is a tuple containing a function reference, a sequence of parameters and a dictionary of parameters. The func will be called but the first arg will be 'self' (this ThreadCommand instance) 'onSuccess' will be called passing 'param' and the result on success 'onFailure' will be called passing 'param' and an error message object on failure 'param' is passed to all callback funcs, unless it is 'None' 'onStatusReport' will be called passing a string for showing to the user along with param 'onProgressReport' will be called passing a float between 0 and 100 along with param 'onCustomReport' will be called with whatever params and kwparams the caller and server decide on, but the first param will be 'param' """ self.command = command self.onStatusReport = onStatusReport self.onProgressReport = onProgressReport self.onSuccess = onSuccess self.onFailure = onFailure self.onCustomReport = onCustomReport self.param = param self.state = QUEUED self.passTC = passTC # Queue ourselves or... if self.twistedThread: self.twistedThread.runCommand(self) else: # Just run in current thread import pdb pdb.set_trace() try: if passTC: res = command[0](self, *command[1], **command[2]) else: res = command[0](*command[1], **command[2]) except Exception, e: if onFailure: if param: onFailure(e, param) else: onFailure(e) else: if param: onFailure(e, param) else: onFailure(e) if onSuccess: if isinstance(res, Deferred): if param: res.addCallback(onSuccess, param) else: res.addCallback(onSuccess) else: if param: onSuccess(res, param) else: onSuccess(res) # Methods called from the net thread def progressReport(self, done, outOf=100): """Passes on a progress report to the gui thread""" if self.param: if outOf == 100: evt = ResponseEvent(self.onProgressReport, None, None, float(done), self.param) else: evt = ResponseEvent(self.onProgressReport, None, None, (done/float(outOf))*100, self.param) else: if outOf == 100: evt = ResponseEvent(self.onProgressReport, None, None, float(done)) else: evt = ResponseEvent(self.onProgressReport, None, None, (done/float(outOf))*100) self.twistedThread.app.AddPendingEvent(evt) def statusReport(self, msg): """Passes on a status message to the gui""" if self.param: evt = ResponseEvent(self.onStatusReport, None, None, msg, self.param) else: evt = ResponseEvent(self.onStatusReport, None, None, msg) self.twistedThread.app.AddPendingEvent(evt) def customReport(self, *params, **kwparams): """Passes on a custom event to the gui thread""" if self.param: evt = ResponseEvent(self.onCustomReport, None, None, self.param, *params, **kwparams) else: evt = ResponseEvent(self.onCustomReport, None, None, *params, **kwparams) self.twistedThread.app.AddPendingEvent(evt) def simpleCommand(command, onSuccess=None, onFailure=None, param=None, onStatusReport=None, onProgressReport=None, onCustomReport=None): """A convinience function to allow you to call net commands without having to pass a tc""" ThreadCommand(command, onSuccess, onFailure, param, onStatusReport, onProgressReport, onCustomReport, False) def netCall(func, *params, **kwparams): """A nice wrapper function, returns a deferred. Lets you safely call a function in the net thread from the gui thread""" d = Deferred() simpleCommand((func, params, kwparams), d.callback, d.errback) return d def makeNetSafe(func): """Makes NET function safe for calling from the GUI thread. Takes a func and returns a thread safe version of it for calling a net func from the gui func""" def result(*params, **kwparams): return netCall(func, *params, **kwparams) return result def guiCall(func, *params, **kwparams): """Calls a gui func safely from the net thread""" d = Deferred() evt = ResponseEvent(func, d.callback, d.errback, *params, **kwparams) ThreadCommand.twistedThread.app.AddPendingEvent(evt) return d def makeGuiSafe(func): """Makes a GUI function safe for calling from the NET thread. Returns a wrapper func that allows you to safely call the gui func 'func' from the net thread""" def result(*params, **kwparams): return guiCall(func, *params, **kwparams) return result ---------------- 8< ----------------------------- Chat example files ---------------- 8< ----------------------------- chatDemo.wxg - A wxGlade file, used to generate chatExampleGui.py ---------------- 8< ----------------------------- <?xml version="1.0"?> <!-- generated by wxGlade 0.3.2 on Mon Jul 05 14:12:09 2004 --> <application path="C:\work\play\chatExample\chatExampleGui.py" name="" class="" option="0" language="python" top_window="" encoding="ANSI_X3.4-1968" use_gettext="0" overwrite="0" use_new_namespace="1"> <object class="ChatFrameGui" name="frmMain" base="EditFrame"> <style>wxDEFAULT_FRAME_STYLE</style> <title>Chat</title> <statusbar>1</statusbar> <object class="wxStatusBar" name="frmMain_statusbar" base="EditStatusBar"> <fields> <field width="-1">frmMain_statusbar</field> </fields> </object> <object class="wxBoxSizer" name="sizer_1" base="EditBoxSizer"> <orient>wxVERTICAL</orient> <object class="sizeritem"> <flag>wxEXPAND</flag> <border>0</border> <option>1</option> <object class="wxPanel" name="panel_1" base="EditPanel"> <style>wxRAISED_BORDER|wxTAB_TRAVERSAL</style> <object class="wxBoxSizer" name="sizer_3" base="EditBoxSizer"> <orient>wxVERTICAL</orient> <object class="sizeritem"> <flag>wxEXPAND</flag> <border>0</border> <option>0</option> <object class="wxPanel" name="panel_4" base="EditPanel"> <style>wxTAB_TRAVERSAL</style> <object class="wxBoxSizer" name="sizer_4" base="EditBoxSizer"> <orient>wxHORIZONTAL</orient> <object class="sizeritem"> <flag>wxALL|wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL</flag> <border>3</border> <option>0</option> <object class="wxStaticText" name="lblIpAddress" base="EditStaticText"> <attribute>1</attribute> <label>IP &Address</label> <size>51, 13</size> </object> </object> <object class="sizeritem"> <flag>wxALL|wxEXPAND</flag> <border>3</border> <option>1</option> <object class="wxTextCtrl" name="edtIPAddress" base="EditTextCtrl"> <tooltip>The ip address or host name of a remote machine running chat</tooltip> <value>127.0.0.1</value> </object> </object> <object class="sizeritem"> <flag>wxALL|wxEXPAND</flag> <border>3</border> <option>0</option> <object class="wxSpinCtrl" name="spnConnectPort" base="EditSpinCtrl"> <style>wxSP_ARROW_KEYS|wxSP_WRAP</style> <tooltip>The port on which the remote chat program is listening</tooltip> <range>1, 65535</range> <value>8080</value> </object> </object> <object class="sizeritem"> <flag>wxALL</flag> <border>3</border> <option>0</option> <object class="wxToggleButton" name="btnConnect" base="EditToggleButton"> <label>&Connect</label> </object> </object> </object> </object> </object> <object class="sizeritem"> <flag>wxEXPAND</flag> <border>0</border> <option>0</option> <object class="wxPanel" name="panel_3" base="EditPanel"> <style>wxTAB_TRAVERSAL</style> <object class="wxBoxSizer" name="sizer_6" base="EditBoxSizer"> <orient>wxHORIZONTAL</orient> <object class="sizeritem"> <flag>wxALL|wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL</flag> <border>3</border> <option>0</option> <object class="wxStaticText" name="lblListenPort" base="EditStaticText"> <attribute>1</attribute> <label>Listen &on port</label> <size>64, 13</size> </object> </object> <object class="sizeritem"> <flag>wxALL|wxEXPAND</flag> <border>3</border> <option>1</option> <object class="wxSpinCtrl" name="spnListenPort" base="EditSpinCtrl"> <style>wxSP_ARROW_KEYS|wxSP_WRAP</style> <tooltip>The port on which to listen for incoming connections</tooltip> <range>1, 65535</range> <value>8080</value> </object> </object> <object class="sizeritem"> <flag>wxALL</flag> <border>3</border> <option>0</option> <object class="wxToggleButton" name="btnListen" base="EditToggleButton"> <tooltip>Listen for incoming connections</tooltip> <label>Lis&ten</label> </object> </object> </object> </object> </object> <object class="sizeritem"> <border>0</border> <option>0</option> <object class="wxStaticText" name="lblReceived" base="EditStaticText"> <attribute>1</attribute> <label>Received</label> </object> </object> <object class="sizeritem"> <flag>wxEXPAND</flag> <border>0</border> <option>1</option> <object class="wxTextCtrl" name="edtReceived" base="EditTextCtrl"> <foreground>#000000</foreground> <style>wxTE_MULTILINE|wxTE_READONLY|wxTE_RICH2|wxTE_AUTO_URL</style> <background>#c0c0c0</background> </object> </object> <object class="sizeritem"> <border>0</border> <option>0</option> <object class="wxStaticText" name="lblSent" base="EditStaticText"> <attribute>1</attribute> <label>Sent:</label> </object> </object> <object class="sizeritem"> <flag>wxEXPAND</flag> <border>0</border> <option>1</option> <object class="wxTextCtrl" name="edtSent" base="EditTextCtrl"> <style>wxTE_MULTILINE|wxTE_READONLY|wxTE_RICH2|wxTE_AUTO_URL</style> <background>#c0c0c0</background> </object> </object> </object> </object> </object> <object class="sizeritem"> <flag>wxEXPAND</flag> <border>0</border> <option>0</option> <object class="wxPanel" name="panel_2" base="EditPanel"> <style>wxRAISED_BORDER|wxTAB_TRAVERSAL</style> <object class="wxBoxSizer" name="sizer_2" base="EditBoxSizer"> <orient>wxHORIZONTAL</orient> <object class="sizeritem"> <flag>wxALL|wxEXPAND</flag> <border>5</border> <option>1</option> <object class="wxTextCtrl" name="edtToSend" base="EditTextCtrl"> </object> </object> <object class="sizeritem"> <flag>wxALL</flag> <border>4</border> <option>0</option> <object class="wxButton" name="btnSend" base="EditButton"> <default>1</default> <label>&Send</label> </object> </object> <object class="sizeritem"> <flag>wxALL</flag> <border>4</border> <option>0</option> <object class="wxButton" name="btnClose" base="EditButton"> <label>&Close</label> </object> </object> </object> </object> </object> </object> </object> </application> ---------------- 8< ----------------------------- chatExampleGui.py - The wx bits ---------------- 8< ----------------------------- #!/usr/bin/env python # generated by wxGlade 0.3.2 on Sun Jul 4 09:38:17 2004 import wx class ChatFrameGui(wx.Frame): def __init__(self, *args, **kwds): # begin wxGlade: ChatFrameGui.__init__ kwds["style"] = wx.DEFAULT_FRAME_STYLE wx.Frame.__init__(self, *args, **kwds) self.panel_2 = wx.Panel(self, -1, style=wx.RAISED_BORDER|wx.TAB_TRAVERSAL) self.panel_1 = wx.Panel(self, -1, style=wx.RAISED_BORDER|wx.TAB_TRAVERSAL) self.panel_3 = wx.Panel(self.panel_1, -1) self.panel_4 = wx.Panel(self.panel_1, -1) self.frmMain_statusbar = self.CreateStatusBar(1) self.lblIpAddress = wx.StaticText(self.panel_4, -1, "IP &Address") self.edtIPAddress = wx.TextCtrl(self.panel_4, -1, "127.0.0.1") self.spnConnectPort = wx.SpinCtrl(self.panel_4, -1, "8080", min=1, max=65535, style=wx.SP_ARROW_KEYS|wx.SP_WRAP) self.btnConnect = wx.ToggleButton(self.panel_4, -1, "&Connect") self.lblListenPort = wx.StaticText(self.panel_3, -1, "Listen &on port") self.spnListenPort = wx.SpinCtrl(self.panel_3, -1, "8080", min=1, max=65535, style=wx.SP_ARROW_KEYS|wx.SP_WRAP) self.btnListen = wx.ToggleButton(self.panel_3, -1, "Lis&ten") self.lblReceived = wx.StaticText(self.panel_1, -1, "Received") self.edtReceived = wx.TextCtrl(self.panel_1, -1, "", style=wx.TE_MULTILINE|wx.TE_READONLY|wx.TE_RICH2|wx.TE_AUTO_URL) self.lblSent = wx.StaticText(self.panel_1, -1, "Sent:") self.edtSent = wx.TextCtrl(self.panel_1, -1, "", style=wx.TE_MULTILINE|wx.TE_READONLY|wx.TE_RICH2|wx.TE_AUTO_URL) self.edtToSend = wx.TextCtrl(self.panel_2, -1, "") self.btnSend = wx.Button(self.panel_2, -1, "&Send") self.btnClose = wx.Button(self.panel_2, -1, "&Close") self.__set_properties() self.__do_layout() # end wxGlade def __set_properties(self): # begin wxGlade: ChatFrameGui.__set_properties self.SetTitle("Chat") self.frmMain_statusbar.SetStatusWidths([-1]) # statusbar fields frmMain_statusbar_fields = ["frmMain_statusbar"] for i in range(len(frmMain_statusbar_fields)): self.frmMain_statusbar.SetStatusText(frmMain_statusbar_fields[i], i) self.lblIpAddress.SetSize((51, 13)) self.edtIPAddress.SetToolTipString("The ip address or host name of a remote machine running chat") self.spnConnectPort.SetToolTipString("The port on which the remote chat program is listening") self.lblListenPort.SetSize((64, 13)) self.spnListenPort.SetToolTipString("The port on which to listen for incoming connections") self.btnListen.SetToolTipString("Listen for incoming connections") self.edtReceived.SetBackgroundColour(wx.Colour(192, 192, 192)) self.edtReceived.SetForegroundColour(wx.Colour(0, 0, 0)) self.edtSent.SetBackgroundColour(wx.Colour(192, 192, 192)) self.btnSend.SetDefault() # end wxGlade def __do_layout(self): # begin wxGlade: ChatFrameGui.__do_layout sizer_1 = wx.BoxSizer(wx.VERTICAL) sizer_2 = wx.BoxSizer(wx.HORIZONTAL) sizer_3 = wx.BoxSizer(wx.VERTICAL) sizer_6 = wx.BoxSizer(wx.HORIZONTAL) sizer_4 = wx.BoxSizer(wx.HORIZONTAL) sizer_4.Add(self.lblIpAddress, 0, wx.ALL|wx.ALIGN_RIGHT|wx.ALIGN_CENTER_VERTICAL, 3) sizer_4.Add(self.edtIPAddress, 1, wx.ALL|wx.EXPAND, 3) sizer_4.Add(self.spnConnectPort, 0, wx.ALL|wx.EXPAND, 3) sizer_4.Add(self.btnConnect, 0, wx.ALL, 3) self.panel_4.SetAutoLayout(1) self.panel_4.SetSizer(sizer_4) sizer_4.Fit(self.panel_4) sizer_4.SetSizeHints(self.panel_4) sizer_3.Add(self.panel_4, 0, wx.EXPAND, 0) sizer_6.Add(self.lblListenPort, 0, wx.ALL|wx.ALIGN_RIGHT|wx.ALIGN_CENTER_VERTICAL, 3) sizer_6.Add(self.spnListenPort, 1, wx.ALL|wx.EXPAND, 3) sizer_6.Add(self.btnListen, 0, wx.ALL, 3) self.panel_3.SetAutoLayout(1) self.panel_3.SetSizer(sizer_6) sizer_6.Fit(self.panel_3) sizer_6.SetSizeHints(self.panel_3) sizer_3.Add(self.panel_3, 0, wx.EXPAND, 0) sizer_3.Add(self.lblReceived, 0, 0, 0) sizer_3.Add(self.edtReceived, 1, wx.EXPAND, 0) sizer_3.Add(self.lblSent, 0, 0, 0) sizer_3.Add(self.edtSent, 1, wx.EXPAND, 0) self.panel_1.SetAutoLayout(1) self.panel_1.SetSizer(sizer_3) sizer_3.Fit(self.panel_1) sizer_3.SetSizeHints(self.panel_1) sizer_1.Add(self.panel_1, 1, wx.EXPAND, 0) sizer_2.Add(self.edtToSend, 1, wx.ALL|wx.EXPAND, 5) sizer_2.Add(self.btnSend, 0, wx.ALL, 4) sizer_2.Add(self.btnClose, 0, wx.ALL, 4) self.panel_2.SetAutoLayout(1) self.panel_2.SetSizer(sizer_2) sizer_2.Fit(self.panel_2) sizer_2.SetSizeHints(self.panel_2) sizer_1.Add(self.panel_2, 0, wx.EXPAND, 0) self.SetAutoLayout(1) self.SetSizer(sizer_1) sizer_1.Fit(self) sizer_1.SetSizeHints(self) self.Layout() # end wxGlade # end of class ChatFrameGui ---------------- 8< ----------------------------- chatExample.py - Notice the various different uses of the library. Refer to comment above for easiest use (makeNetSafe, netCall, makeGuiSafe, guiCall). guiCall is not tested, haven't needed to use it yet. ---------------- 8< ----------------------------- import wx from chatExampleGui import ChatFrameGui from guinet import TwistedThread, ThreadCommand, netCall, makeNetSafe, guiCall, makeGuiSafe from wxPython.lib.evtmgr import eventManager from twisted.protocols.basic import LineReceiver from twisted.internet.protocol import Factory, ClientFactory from twisted.internet import reactor from twisted.internet.defer import Deferred from twisted.python.failure import Failure ############################################################################### ## Classes that run in the net thread ######################################### ############################################################################### class ChatProtocol(LineReceiver): def __init__(self): self.setLineMode() def dataReceived(self, data): LineReceiver.dataReceived(self, data) def lineReceived(self, line): self.factory.onLine(line) class ChatFactory(Factory): protocol = ChatProtocol def __init__(self, tc, onConnectionMade, onLine): self.tc = tc self.onConnectionMade = onConnectionMade self.onLine = onLine def buildProtocol(self, addr): p = ChatProtocol() p.factory = self self.onConnectionMade(p, addr) return p class ChatClientFactory(ClientFactory): def __init__(self, deferred, tc, onConnectionMade): self.tc = tc self.deferred = deferred self.onConnectionMade = onConnectionMade def startedConnecting(self, connector): self.tc.customReport('Started to connect.') def buildProtocol(self, addr): p = ChatProtocol() p.factory = self self.deferred.callback('Connected') self.onConnectionMade(p) return p def clientConnectionLost(self, connector, reason): self.tc.customReport('Lost connection. Reason: %s' % reason) def clientConnectionFailed(self, connector, reason): self.deferred.errback(Failure('Connection failed. Reason: %s' % reason)) def onLine(self, line): self.tc.statusReport(line) ############################################################################### ## Classes that run in the gui thread ######################################### ############################################################################### class ChatServer(object): """This object is created in the gui thread and allows for communication between the threads""" def __init__(self, app, onStarted, onFailed, onLine, onMsg): self.app = app self.onStarted = onStarted self.onFailed = onFailed self.onLine = onLine self.onMsg = onMsg self.started = False def start(self, port): ThreadCommand((self._doStart, [port], {}), self.onStarted, self.onFailed, onStatusReport=self.onLine, onCustomReport=self.onMsg) self.started = True def stop(self, onStopped, onFail): ThreadCommand((self._doStop, (), {}), onStopped, onFail) self.started = False def send(self, line): """Sends a line to the other end""" return self.connection.transport.write(str(line) + '\r\n') # This is soooo coool. Just call self.send from the gui # and your data is sent. (it returns a deferred by the way) send = makeNetSafe(send) # Methods called from net thread def _doStart(self, tc, port): """Starts the factory""" self.factory = ChatFactory(tc, self._doOnConnectionMade, self._doOnLine) self.port = reactor.listenTCP(int(port), self.factory) def _doStop(self, tc): """Stops listening""" self.port.stopListening() def _doOnConnectionMade(self, connection, addr): """Receives an instance of 'ChatProtocol' for each incoming connection""" self.connection = connection # We only really handle one connection at a time guiCall(self.onMsg, 'Connection from %s' % addr) def _doOnLine(self, line): """Passes the on line received event to the gui""" self.factory.tc.statusReport(line) class ChatClient(object): """A nice interface to be used from the gui""" # Methods called in the gui thread def connect(self, server, port, onSuccess, onFailure, onLine, onMsg): ThreadCommand((self._doConnect, (server, port), {}), onSuccess, onFailure, onStatusReport=onLine, onCustomReport=onMsg) def disconnect(self, onDone, onErr): ThreadCommand((self._doDisconnect, (), {}), onDone, onErr) def send(self, line): """Sends the line""" return netCall(self._doSend, line) # Methods called in the net thread def _doConnect(self, tp, server, port): d = Deferred() self.factory = ChatClientFactory(d, tp, self.onConnectionMade) self.connector = reactor.connectTCP(server, int(port), self.factory) return d def _doDisconnect(self, tp): return self.connector.disconnect() def _doSend(self, line): self.connection.transport.write(str(line) + '\r\n') def onConnectionMade(self, connection): """Called once we have connected.""" self.connection = connection class ChatFrame(ChatFrameGui): def __init__(self): ChatFrameGui.__init__(self, None, -1, 'Chat') self._assignEvents() self.server = ChatServer(wx.GetApp(), self.onServerStarted, self.onServerFailed, self.onLine, self.onMsg) self.client = ChatClient() def _assignEvents(self): eventManager.Register(self.onListen, wx.EVT_TOGGLEBUTTON, self.btnListen) eventManager.Register(self.onConnect, wx.EVT_TOGGLEBUTTON, self.btnConnect) eventManager.Register(lambda e: self.Close(), wx.EVT_BUTTON, self.btnClose) eventManager.Register(self.onSend, wx.EVT_BUTTON, self.btnSend) # Event handlers for gui framework def onListen(self, evt): """Starts or stops listening""" if evt.Checked(): self.server.start(self.spnListenPort.GetValue()) else: self.server.stop(self.onServerStopped, self.onServerFailed) def onConnect(self, evt): """Called from connect button. Connects to a server""" if evt.Checked(): self.client.connect(self.edtIPAddress.GetValue(), self.spnConnectPort.GetValue(), self.onClientConnected, self.onClientFailed, self.onLine, self.onClientMsg) else: self.client.disconnect(lambda tc: self.onClientMsg('Client disconnected'), self.onClientFailed) def onSend(self, evt): """Sends the stuff in edtToSend""" line = self.edtToSend.GetValue() if not line: return if self.server.started: d = self.server.send(line) else: d = self.client.send(line) d.addCallback(self.onSent, line) d.addErrback(self.onSendFailed, line) self.edtToSend.SetValue('') self.edtToSend.SetFocus() def onSent(self, result, line): """Called once some text has been succesfully sent""" self.edtSent.AppendText(line + '\n') def onSendFailed(self, reason, line): """Called if a send failed""" wx.MessageBox(str(reason), 'Could not send %s' % line, wx.OK|wx.ICON_ERROR, self) # Event handlers for net framework def onServerStarted(self, server): """Called once the server has started listening""" self.GetStatusBar().SetStatusText('Server started') def onServerStopped(self, server): """The server has been stopped by the user""" self.GetStatusBar().SetStatusText('Server stopped') def onServerFailed(self, reason): """Called if the server can't listen""" self.btnListen.SetValue(False) wx.MessageBox(reason, 'Server Failed', wx.OK|wx.ICON_ERROR, self) self.GetStatusBar().SetStatusText('Server failed: %s' % reason) def onClientConnected(self, c): self.GetStatusBar().SetStatusText('Client Connected') def onClientFailed(self, reason): self.btnConnect.SetValue(False) wx.MessageBox(str(reason), 'Client Connection Failed', wx.OK|wx.ICON_ERROR, self) self.GetStatusBar().SetStatusText('Client Connection Failed: %s' % reason) def onClientMsg(self, msg, extra=None): if isinstance(msg, Failure): msg = msg.getErrorMessage() self.GetStatusBar().SetStatusText(msg) def onLine(self, line): """Called when a line is received from the other end""" self.edtReceived.AppendText(line + '\n') def onMsg(self, msg): """Called when the server has a message for us""" self.GetStatusBar().SetStatusText(msg) class App(wx.App): def OnInit(self): self.twistedThread = TwistedThread(self, 'twistd.log') #self.twistedThread = TwistedThread(self) from twisted.internet.defer import Deferred Deferred.debug = 1 self.main = ChatFrame() eventManager.Register(self.onClose, wx.EVT_CLOSE, self.main) self.main.Show() return True def onClose(self, evt): """Stops the twisted threads""" self.twistedThread.stop() evt.Skip() if __name__ == '__main__': a = App(0) a.MainLoop()