class MainPanel(wx.Panel):
def __init__(self, parent):
self.doing_task_event_loop = False
self.doing_task_callback = False
self.listening = False
wx.Panel.__init__(self, parent)
# Read only Text Area
self.textbox = wx.TextCtrl(self,
style=wx.TE_MULTILINE | wx.TE_READONLY)
self.horizontal_text = wx.BoxSizer()
self.horizontal_text.Add(self.textbox, proportion=1, flag=wx.EXPAND)
# Main Input controls
self.listen_port_label = wx.StaticText(self, label="Listen Port")
self.listen_port_text = wx.TextCtrl(self, size=(50, -1), value="5000")
self.broadcast_checkbox = wx.CheckBox(self, label="Allow Broadcast")
self.button_open = wx.Button(self, label="Open")
self.button_listen = wx.Button(self, label="Listen")
self.subhorizontal_inputs1 = wx.BoxSizer()
self.subhorizontal_inputs1.Add(self.listen_port_label, 0, wx.RIGHT, 5)
self.subhorizontal_inputs1.Add(self.listen_port_text, 0, wx.RIGHT, 5)
self.subhorizontal_inputs1.Add(self.broadcast_checkbox, 0, wx.RIGHT,
92)
self.subhorizontal_inputs1.Add(self.button_open, 0, wx.RIGHT, 5)
self.subhorizontal_inputs1.Add(self.button_listen, 0, wx.RIGHT, 5)
self.destination_ip_label = wx.StaticText(self, label="Destination IP")
self.destination_ip_text = wx.TextCtrl(self,
size=(150, -1),
value="127.0.0.1")
self.destination_port_label = wx.StaticText(self, label="Port")
self.destination_port_text = wx.TextCtrl(self,
size=(50, -1),
value="5000")
self.subhorizontal_inputs2 = wx.BoxSizer()
self.subhorizontal_inputs2.Add(self.destination_ip_label, 0, wx.RIGHT,
5)
self.subhorizontal_inputs2.Add(self.destination_ip_text, 0, wx.RIGHT,
5)
self.subhorizontal_inputs2.Add(self.destination_port_label, 0,
wx.RIGHT, 5)
self.subhorizontal_inputs2.Add(self.destination_port_text, 0, wx.RIGHT,
5)
self.message_label = wx.StaticText(self, label="Message")
self.message_text = wx.TextCtrl(self,
size=(250, -1),
value="Lorem ipsum dolor sit amet")
self.button_send = wx.Button(self, label="Send")
self.subhorizontal_inputs3 = wx.BoxSizer()
self.subhorizontal_inputs3.Add(self.message_label, 0, wx.RIGHT, 15)
self.subhorizontal_inputs3.Add(self.message_text, 0, wx.RIGHT, 5)
self.subhorizontal_inputs3.Add(self.button_send, 0, wx.RIGHT, 5)
self.vertical_input_controls = wx.BoxSizer(wx.VERTICAL)
self.vertical_input_controls.Add(self.subhorizontal_inputs1, 0,
wx.BOTTOM, 15)
self.vertical_input_controls.Add(self.subhorizontal_inputs2, 0,
wx.BOTTOM, 5)
self.vertical_input_controls.Add(self.subhorizontal_inputs3, 0,
wx.BOTTOM, 5)
self.button_task_event_loop = wx.Button(
self, label="Start task - event loop")
self.vertical_extras = wx.BoxSizer(wx.VERTICAL)
self.vertical_extras.Add(self.button_task_event_loop, 0,
wx.ALIGN_RIGHT)
self.horizontal_input_controls = wx.BoxSizer()
self.horizontal_input_controls.Add(self.vertical_input_controls, 2, 0,
0)
self.horizontal_input_controls.Add(self.vertical_extras, 1, 0, 0)
# Main box
self.vertical_main = wx.BoxSizer(wx.VERTICAL)
self.vertical_main.Add(self.horizontal_text, 2, wx.EXPAND | wx.BOTTOM,
10)
self.vertical_main.Add(self.horizontal_input_controls, 1, wx.LEFT, 10)
self.SetSizerAndFit(self.vertical_main)
# Binds and inits
self.Bind(wx.EVT_BUTTON, self.on_click_button_task_event_loop,
self.button_task_event_loop)
self.Bind(wx.EVT_BUTTON, self.on_click_button_open, self.button_open)
self.Bind(wx.EVT_BUTTON, self.on_click_button_listen,
self.button_listen)
self.Bind(wx.EVT_BUTTON, self.on_click_button_send, self.button_send)
self.button_listen.Disable()
self.textbox.AppendText('Panel created on thread: {}\n'.format(
threading.current_thread().ident))
self.udp_plugin = Plugin("notapplicable")
def on_click_button_task_event_loop(self, event):
if self.doing_task_event_loop:
self.doing_task_event_loop = False
self.button_task_event_loop.SetLabel('Start task - event loop')
self.textbox.AppendText(
'Stopping long task in the event loop...\n')
else:
self.doing_task_event_loop = True
self.button_task_event_loop.SetLabel('Stop task - event loop')
self.textbox.AppendText(
'Starting long task in the event loop...\n')
from twisted.internet import reactor
reactor.callLater(0.25, self.long_task_event_loop)
def on_click_button_open(self, event):
self.button_open.Disable()
# Start listening
port = self.listen_port_text.GetValue()
try:
port = int(port)
except ValueError:
self.textbox.AppendText(
'Listen port was not a valid value. Try again.\n')
self.listen_port_text.SetValue("")
self.button_open.Enable()
return
self.udp_plugin.open(port, self.broadcast_checkbox.GetValue(),
self.on_open, self.on_open_error)
self.broadcast_checkbox.Disable()
def on_click_button_listen(self, event):
if not self.listening:
self.udp_plugin.listen(self.on_message_received)
self.listening = True
self.button_listen.Label = "Stop Listening"
self.textbox.AppendText('Registered receive callback.\n')
else:
self.udp_plugin.stop_listening()
self.listening = False
self.button_open.Enable()
self.button_listen.Label = "Listen"
self.button_listen.Disable()
self.broadcast_checkbox.Enable()
self.textbox.AppendText(
'Closed Listener, unregistered callback, and set port to None.\n'
)
def on_click_button_send(self, event):
message = self.message_text.GetValue()
address = self.destination_ip_text.GetValue()
port = self.destination_port_text.GetValue()
try:
port = int(port)
except ValueError:
self.textbox.AppendText(
'Destination port was not a valid value. Try again.\n')
self.listen_port_text.SetValue("")
self.button_open.Enable()
return
self.udp_plugin.send(message, address, port, self.on_send,
self.on_send_error)
def long_task_event_loop(self):
if self.doing_task_event_loop:
time.sleep(0.33)
from twisted.internet import reactor
self.textbox.AppendText('Event loop task\n')
reactor.callLater(0.25, self.long_task_event_loop)
def on_open(self):
self.textbox.AppendText('Open was successful\n')
self.button_listen.Enable()
def on_open_error(self, error_json):
self.textbox.AppendText('Open failed:%s\n' % json.dumps(error_json))
def on_message_received(self, udp_event):
self.textbox.AppendText('a message was received:\n%s' %
format(json.dumps(udp_event)))
def on_listen_error(self, error_json):
self.textbox.AppendText('Listen failed:%s\n' % json.dumps(error_json))
def on_send(self):
self.textbox.AppendText('Send was successful\n')
def on_send_error(self, error_json):
self.textbox.AppendText('Send failed:%s\n' % json.dumps(error_json))
