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9a16666 Jun 21, 2016
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#!/usr/bin/env python
#
# A serial port configuration dialog for wxPython. A number of flags can
# be used to configure the fields that are displayed.
#
# (C) 2001-2015 Chris Liechti <cliechti@gmx.net>
#
# SPDX-License-Identifier: BSD-3-Clause
import wx
import serial
import serial.tools.list_ports
SHOW_BAUDRATE = 1 << 0
SHOW_FORMAT = 1 << 1
SHOW_FLOW = 1 << 2
SHOW_TIMEOUT = 1 << 3
SHOW_ALL = SHOW_BAUDRATE | SHOW_FORMAT | SHOW_FLOW | SHOW_TIMEOUT
class SerialConfigDialog(wx.Dialog):
"""\
Serial Port configuration dialog, to be used with pySerial 2.0+
When instantiating a class of this dialog, then the "serial" keyword
argument is mandatory. It is a reference to a serial.Serial instance.
the optional "show" keyword argument can be used to show/hide different
settings. The default is SHOW_ALL which corresponds to
SHOW_BAUDRATE|SHOW_FORMAT|SHOW_FLOW|SHOW_TIMEOUT. All constants can be
found in this module (not the class).
"""
def __init__(self, *args, **kwds):
# grab the serial keyword and remove it from the dict
self.serial = kwds['serial']
del kwds['serial']
self.show = SHOW_ALL
if 'show' in kwds:
self.show = kwds.pop('show')
# begin wxGlade: SerialConfigDialog.__init__
kwds["style"] = wx.DEFAULT_DIALOG_STYLE
wx.Dialog.__init__(self, *args, **kwds)
self.label_2 = wx.StaticText(self, -1, "Port")
self.choice_port = wx.Choice(self, -1, choices=[])
self.label_1 = wx.StaticText(self, -1, "Baudrate")
self.combo_box_baudrate = wx.ComboBox(self, -1, choices=[], style=wx.CB_DROPDOWN)
self.sizer_1_staticbox = wx.StaticBox(self, -1, "Basics")
self.panel_format = wx.Panel(self, -1)
self.label_3 = wx.StaticText(self.panel_format, -1, "Data Bits")
self.choice_databits = wx.Choice(self.panel_format, -1, choices=["choice 1"])
self.label_4 = wx.StaticText(self.panel_format, -1, "Stop Bits")
self.choice_stopbits = wx.Choice(self.panel_format, -1, choices=["choice 1"])
self.label_5 = wx.StaticText(self.panel_format, -1, "Parity")
self.choice_parity = wx.Choice(self.panel_format, -1, choices=["choice 1"])
self.sizer_format_staticbox = wx.StaticBox(self.panel_format, -1, "Data Format")
self.panel_timeout = wx.Panel(self, -1)
self.checkbox_timeout = wx.CheckBox(self.panel_timeout, -1, "Use Timeout")
self.text_ctrl_timeout = wx.TextCtrl(self.panel_timeout, -1, "")
self.label_6 = wx.StaticText(self.panel_timeout, -1, "seconds")
self.sizer_timeout_staticbox = wx.StaticBox(self.panel_timeout, -1, "Timeout")
self.panel_flow = wx.Panel(self, -1)
self.checkbox_rtscts = wx.CheckBox(self.panel_flow, -1, "RTS/CTS")
self.checkbox_xonxoff = wx.CheckBox(self.panel_flow, -1, "Xon/Xoff")
self.sizer_flow_staticbox = wx.StaticBox(self.panel_flow, -1, "Flow Control")
self.button_ok = wx.Button(self, wx.ID_OK, "")
self.button_cancel = wx.Button(self, wx.ID_CANCEL, "")
self.__set_properties()
self.__do_layout()
# end wxGlade
# attach the event handlers
self.__attach_events()
def __set_properties(self):
# begin wxGlade: SerialConfigDialog.__set_properties
self.SetTitle("Serial Port Configuration")
self.choice_databits.SetSelection(0)
self.choice_stopbits.SetSelection(0)
self.choice_parity.SetSelection(0)
self.text_ctrl_timeout.Enable(False)
self.button_ok.SetDefault()
# end wxGlade
self.SetTitle("Serial Port Configuration")
if self.show & SHOW_TIMEOUT:
self.text_ctrl_timeout.Enable(0)
self.button_ok.SetDefault()
if not self.show & SHOW_BAUDRATE:
self.label_1.Hide()
self.combo_box_baudrate.Hide()
if not self.show & SHOW_FORMAT:
self.panel_format.Hide()
if not self.show & SHOW_TIMEOUT:
self.panel_timeout.Hide()
if not self.show & SHOW_FLOW:
self.panel_flow.Hide()
# fill in ports and select current setting
preferred_index = 0
self.choice_port.Clear()
self.ports = []
for n, (portname, desc, hwid) in enumerate(sorted(serial.tools.list_ports.comports())):
self.choice_port.Append(u'{} - {}'.format(portname, desc))
self.ports.append(portname)
if self.serial.name == portname:
preferred_index = n
self.choice_port.SetSelection(preferred_index)
if self.show & SHOW_BAUDRATE:
preferred_index = None
# fill in baud rates and select current setting
self.combo_box_baudrate.Clear()
for n, baudrate in enumerate(self.serial.BAUDRATES):
self.combo_box_baudrate.Append(str(baudrate))
if self.serial.baudrate == baudrate:
preferred_index = n
if preferred_index is not None:
self.combo_box_baudrate.SetSelection(preferred_index)
else:
self.combo_box_baudrate.SetValue(u'{}'.format(self.serial.baudrate))
if self.show & SHOW_FORMAT:
# fill in data bits and select current setting
self.choice_databits.Clear()
for n, bytesize in enumerate(self.serial.BYTESIZES):
self.choice_databits.Append(str(bytesize))
if self.serial.bytesize == bytesize:
index = n
self.choice_databits.SetSelection(index)
# fill in stop bits and select current setting
self.choice_stopbits.Clear()
for n, stopbits in enumerate(self.serial.STOPBITS):
self.choice_stopbits.Append(str(stopbits))
if self.serial.stopbits == stopbits:
index = n
self.choice_stopbits.SetSelection(index)
# fill in parities and select current setting
self.choice_parity.Clear()
for n, parity in enumerate(self.serial.PARITIES):
self.choice_parity.Append(str(serial.PARITY_NAMES[parity]))
if self.serial.parity == parity:
index = n
self.choice_parity.SetSelection(index)
if self.show & SHOW_TIMEOUT:
# set the timeout mode and value
if self.serial.timeout is None:
self.checkbox_timeout.SetValue(False)
self.text_ctrl_timeout.Enable(False)
else:
self.checkbox_timeout.SetValue(True)
self.text_ctrl_timeout.Enable(True)
self.text_ctrl_timeout.SetValue(str(self.serial.timeout))
if self.show & SHOW_FLOW:
# set the rtscts mode
self.checkbox_rtscts.SetValue(self.serial.rtscts)
# set the rtscts mode
self.checkbox_xonxoff.SetValue(self.serial.xonxoff)
def __do_layout(self):
# begin wxGlade: SerialConfigDialog.__do_layout
sizer_2 = wx.BoxSizer(wx.VERTICAL)
sizer_3 = wx.BoxSizer(wx.HORIZONTAL)
self.sizer_flow_staticbox.Lower()
sizer_flow = wx.StaticBoxSizer(self.sizer_flow_staticbox, wx.HORIZONTAL)
self.sizer_timeout_staticbox.Lower()
sizer_timeout = wx.StaticBoxSizer(self.sizer_timeout_staticbox, wx.HORIZONTAL)
self.sizer_format_staticbox.Lower()
sizer_format = wx.StaticBoxSizer(self.sizer_format_staticbox, wx.VERTICAL)
grid_sizer_1 = wx.FlexGridSizer(3, 2, 0, 0)
self.sizer_1_staticbox.Lower()
sizer_1 = wx.StaticBoxSizer(self.sizer_1_staticbox, wx.VERTICAL)
sizer_basics = wx.FlexGridSizer(3, 2, 0, 0)
sizer_basics.Add(self.label_2, 0, wx.ALL | wx.ALIGN_CENTER_VERTICAL, 4)
sizer_basics.Add(self.choice_port, 0, wx.EXPAND, 0)
sizer_basics.Add(self.label_1, 0, wx.ALL | wx.ALIGN_CENTER_VERTICAL, 4)
sizer_basics.Add(self.combo_box_baudrate, 0, wx.EXPAND, 0)
sizer_basics.AddGrowableCol(1)
sizer_1.Add(sizer_basics, 0, wx.EXPAND, 0)
sizer_2.Add(sizer_1, 0, wx.EXPAND, 0)
grid_sizer_1.Add(self.label_3, 1, wx.ALL | wx.ALIGN_CENTER_VERTICAL, 4)
grid_sizer_1.Add(self.choice_databits, 1, wx.EXPAND | wx.ALIGN_RIGHT, 0)
grid_sizer_1.Add(self.label_4, 1, wx.ALL | wx.ALIGN_CENTER_VERTICAL, 4)
grid_sizer_1.Add(self.choice_stopbits, 1, wx.EXPAND | wx.ALIGN_RIGHT, 0)
grid_sizer_1.Add(self.label_5, 1, wx.ALL | wx.ALIGN_CENTER_VERTICAL, 4)
grid_sizer_1.Add(self.choice_parity, 1, wx.EXPAND | wx.ALIGN_RIGHT, 0)
sizer_format.Add(grid_sizer_1, 1, wx.EXPAND, 0)
self.panel_format.SetSizer(sizer_format)
sizer_2.Add(self.panel_format, 0, wx.EXPAND, 0)
sizer_timeout.Add(self.checkbox_timeout, 0, wx.ALL | wx.ALIGN_CENTER_VERTICAL, 4)
sizer_timeout.Add(self.text_ctrl_timeout, 0, 0, 0)
sizer_timeout.Add(self.label_6, 0, wx.ALL | wx.ALIGN_CENTER_VERTICAL, 4)
self.panel_timeout.SetSizer(sizer_timeout)
sizer_2.Add(self.panel_timeout, 0, wx.EXPAND, 0)
sizer_flow.Add(self.checkbox_rtscts, 0, wx.ALL | wx.ALIGN_CENTER_VERTICAL, 4)
sizer_flow.Add(self.checkbox_xonxoff, 0, wx.ALL | wx.ALIGN_CENTER_VERTICAL, 4)
sizer_flow.Add((10, 10), 1, wx.EXPAND, 0)
self.panel_flow.SetSizer(sizer_flow)
sizer_2.Add(self.panel_flow, 0, wx.EXPAND, 0)
sizer_3.Add(self.button_ok, 0, 0, 0)
sizer_3.Add(self.button_cancel, 0, 0, 0)
sizer_2.Add(sizer_3, 0, wx.ALL | wx.ALIGN_RIGHT, 4)
self.SetSizer(sizer_2)
sizer_2.Fit(self)
self.Layout()
# end wxGlade
def __attach_events(self):
wx.EVT_BUTTON(self, self.button_ok.GetId(), self.OnOK)
wx.EVT_BUTTON(self, self.button_cancel.GetId(), self.OnCancel)
if self.show & SHOW_TIMEOUT:
wx.EVT_CHECKBOX(self, self.checkbox_timeout.GetId(), self.OnTimeout)
def OnOK(self, events):
success = True
self.serial.port = self.ports[self.choice_port.GetSelection()]
if self.show & SHOW_BAUDRATE:
try:
b = int(self.combo_box_baudrate.GetValue())
except ValueError:
with wx.MessageDialog(
self,
'Baudrate must be a numeric value',
'Value Error',
wx.OK | wx.ICON_ERROR) as dlg:
dlg.ShowModal()
success = False
else:
self.serial.baudrate = b
if self.show & SHOW_FORMAT:
self.serial.bytesize = self.serial.BYTESIZES[self.choice_databits.GetSelection()]
self.serial.stopbits = self.serial.STOPBITS[self.choice_stopbits.GetSelection()]
self.serial.parity = self.serial.PARITIES[self.choice_parity.GetSelection()]
if self.show & SHOW_FLOW:
self.serial.rtscts = self.checkbox_rtscts.GetValue()
self.serial.xonxoff = self.checkbox_xonxoff.GetValue()
if self.show & SHOW_TIMEOUT:
if self.checkbox_timeout.GetValue():
try:
self.serial.timeout = float(self.text_ctrl_timeout.GetValue())
except ValueError:
with wx.MessageDialog(
self,
'Timeout must be a numeric value',
'Value Error',
wx.OK | wx.ICON_ERROR) as dlg:
dlg.ShowModal()
success = False
else:
self.serial.timeout = None
if success:
self.EndModal(wx.ID_OK)
def OnCancel(self, events):
self.EndModal(wx.ID_CANCEL)
def OnTimeout(self, events):
if self.checkbox_timeout.GetValue():
self.text_ctrl_timeout.Enable(True)
else:
self.text_ctrl_timeout.Enable(False)
# end of class SerialConfigDialog
class MyApp(wx.App):
"""Test code"""
def OnInit(self):
wx.InitAllImageHandlers()
ser = serial.Serial()
print(ser)
# loop until cancel is pressed, old values are used as start for the next run
# show the different views, one after the other
# value are kept.
for flags in (SHOW_BAUDRATE, SHOW_FLOW, SHOW_FORMAT, SHOW_TIMEOUT, SHOW_ALL):
dialog_serial_cfg = SerialConfigDialog(None, -1, "", serial=ser, show=flags)
self.SetTopWindow(dialog_serial_cfg)
result = dialog_serial_cfg.ShowModal()
print(ser)
if result != wx.ID_OK:
break
# the user can play around with the values, CANCEL aborts the loop
while True:
dialog_serial_cfg = SerialConfigDialog(None, -1, "", serial=ser)
self.SetTopWindow(dialog_serial_cfg)
result = dialog_serial_cfg.ShowModal()
print(ser)
if result != wx.ID_OK:
break
return 0
# end of class MyApp
if __name__ == "__main__":
app = MyApp(0)
app.MainLoop()