今日讀的進度，以及筆記
三個要件
1.pyserial
2.wxpython with Phoenix
3.python3以上的版本
2.7版的wxxpython和phoenix wxpython api比較
PySerial documation about io control
Wxxpython API Module
Wxxpython GUI Bulider wxGlade
今日寫程式遇到的問題點
1.在wxTeriminal中遇到問題來自於他沒辦法顯示我傳給他的值
2.以及他的pyserial中，需要詳細測試他所收到以及送的值的格式
3.才能自己寫一套for python3 Gui的程式控制
要能成功執行下方的程式必須要安裝
1.python 3.4+
2.wxPython Phoenix
3.pyserial
關於程式碼有更改後的
#file name wxSerialConfigDialog.py
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('{} - {}'.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('{}'.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()
主程式部分
#file name wxTerminal.py
import codecs
import serial
import threading
import wx
import wxSerialConfigDialog
# ----------------------------------------------------------------------
# Create an own event type, so that GUI updates can be delegated
# this is required as on some platforms only the main thread can
# access the GUI without crashing. wxMutexGuiEnter/wxMutexGuiLeave
# could be used too, but an event is more elegant.
SERIALRX = wx.NewEventType()
# bind to serial data receive events
EVT_SERIALRX = wx.PyEventBinder(SERIALRX, 0)
class SerialRxEvent(wx.PyCommandEvent):
eventType = SERIALRX
def __init__(self, windowID, data):
wx.PyCommandEvent.__init__(self, self.eventType, windowID)
self.data = data
def Clone(self):
self.__class__(self.GetId(), self.data)
# ----------------------------------------------------------------------
ID_CLEAR = wx.NewId()
ID_SAVEAS = wx.NewId()
ID_SETTINGS = wx.NewId()
ID_TERM = wx.NewId()
ID_EXIT = wx.NewId()
ID_RTS = wx.NewId()
ID_DTR = wx.NewId()
NEWLINE_CR = 0
NEWLINE_LF = 1
NEWLINE_CRLF = 2
class TerminalSetup:
"""
Placeholder for various terminal settings. Used to pass the
options to the TerminalSettingsDialog.
"""
def __init__(self):
self.echo = False
self.unprintable = False
self.newline = NEWLINE_CRLF
class TerminalSettingsDialog(wx.Dialog):
"""Simple dialog with common terminal settings like echo, newline mode."""
def __init__(self, *args, **kwds):
self.settings = kwds['settings']
del kwds['settings']
# begin wxGlade: TerminalSettingsDialog.__init__
kwds["style"] = wx.DEFAULT_DIALOG_STYLE
wx.Dialog.__init__(self, *args, **kwds)
self.checkbox_echo = wx.CheckBox(self, -1, "Local Echo")
self.checkbox_unprintable = wx.CheckBox(self, -1, "Show unprintable characters")
self.radio_box_newline = wx.RadioBox(self, -1, "Newline Handling", choices=["CR only", "LF only", "CR+LF"], majorDimension=0, style=wx.RA_SPECIFY_ROWS)
self.sizer_4_staticbox = wx.StaticBox(self, -1, "Input/Output")
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
self.__attach_events()
self.checkbox_echo.SetValue(self.settings.echo)
self.checkbox_unprintable.SetValue(self.settings.unprintable)
self.radio_box_newline.SetSelection(self.settings.newline)
def __set_properties(self):
# begin wxGlade: TerminalSettingsDialog.__set_properties
self.SetTitle("Terminal Settings")
self.radio_box_newline.SetSelection(0)
self.button_ok.SetDefault()
# end wxGlade
def __do_layout(self):
# begin wxGlade: TerminalSettingsDialog.__do_layout
sizer_2 = wx.BoxSizer(wx.VERTICAL)
sizer_3 = wx.BoxSizer(wx.HORIZONTAL)
self.sizer_4_staticbox.Lower()
sizer_4 = wx.StaticBoxSizer(self.sizer_4_staticbox, wx.VERTICAL)
sizer_4.Add(self.checkbox_echo, 0, wx.ALL, 4)
sizer_4.Add(self.checkbox_unprintable, 0, wx.ALL, 4)
sizer_4.Add(self.radio_box_newline, 0, 0, 0)
sizer_2.Add(sizer_4, 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):
self.Bind(wx.EVT_BUTTON, self.OnOK, id=self.button_ok.GetId())
self.Bind(wx.EVT_BUTTON, self.OnCancel, id=self.button_cancel.GetId())
def OnOK(self, events):
"""Update data wil new values and close dialog."""
self.settings.echo = self.checkbox_echo.GetValue()
self.settings.unprintable = self.checkbox_unprintable.GetValue()
self.settings.newline = self.radio_box_newline.GetSelection()
self.EndModal(wx.ID_OK)
def OnCancel(self, events):
"""Do not update data but close dialog."""
self.EndModal(wx.ID_CANCEL)
# end of class TerminalSettingsDialog
class TerminalFrame(wx.Frame):
"""Simple terminal program for wxPython"""
def __init__(self, *args, **kwds):
self.serial = serial.Serial()
self.serial.timeout = 0.5 # make sure that the alive event can be checked from time to time
self.settings = TerminalSetup() # placeholder for the settings
self.thread = None
self.alive = threading.Event()
# begin wxGlade: TerminalFrame.__init__
kwds["style"] = wx.DEFAULT_FRAME_STYLE
wx.Frame.__init__(self, *args, **kwds)
# Menu Bar
self.frame_terminal_menubar = wx.MenuBar()
wxglade_tmp_menu = wx.Menu()
wxglade_tmp_menu.Append(ID_CLEAR, "&Clear", "", wx.ITEM_NORMAL)
wxglade_tmp_menu.Append(ID_SAVEAS, "&Save Text As...", "", wx.ITEM_NORMAL)
wxglade_tmp_menu.AppendSeparator()
wxglade_tmp_menu.Append(ID_TERM, "&Terminal Settings...", "", wx.ITEM_NORMAL)
wxglade_tmp_menu.AppendSeparator()
wxglade_tmp_menu.Append(ID_EXIT, "&Exit", "", wx.ITEM_NORMAL)
self.frame_terminal_menubar.Append(wxglade_tmp_menu, "&File")
wxglade_tmp_menu = wx.Menu()
wxglade_tmp_menu.Append(ID_RTS, "RTS", "", wx.ITEM_CHECK)
wxglade_tmp_menu.Append(ID_DTR, "&DTR", "", wx.ITEM_CHECK)
wxglade_tmp_menu.Append(ID_SETTINGS, "&Port Settings...", "", wx.ITEM_NORMAL)
self.frame_terminal_menubar.Append(wxglade_tmp_menu, "Serial Port")
self.SetMenuBar(self.frame_terminal_menubar)
# Menu Bar end
self.text_ctrl_output = wx.TextCtrl(self, -1, "", style=wx.TE_MULTILINE | wx.TE_READONLY)
self.__set_properties()
self.__do_layout()
self.Bind(wx.EVT_MENU, self.OnClear, id=ID_CLEAR)
self.Bind(wx.EVT_MENU, self.OnSaveAs, id=ID_SAVEAS)
self.Bind(wx.EVT_MENU, self.OnTermSettings, id=ID_TERM)
self.Bind(wx.EVT_MENU, self.OnExit, id=ID_EXIT)
self.Bind(wx.EVT_MENU, self.OnRTS, id=ID_RTS)
self.Bind(wx.EVT_MENU, self.OnDTR, id=ID_DTR)
self.Bind(wx.EVT_MENU, self.OnPortSettings, id=ID_SETTINGS)
# end wxGlade
self.__attach_events() # register events
self.OnPortSettings(None) # call setup dialog on startup, opens port
if not self.alive.isSet():
self.Close()
def StartThread(self):
"""Start the receiver thread"""
self.thread = threading.Thread(target=self.ComPortThread)
self.thread.setDaemon(1)
self.alive.set()
self.thread.start()
self.serial.rts = True
self.serial.dtr = True
self.frame_terminal_menubar.Check(ID_RTS, self.serial.rts)
self.frame_terminal_menubar.Check(ID_DTR, self.serial.dtr)
def StopThread(self):
"""Stop the receiver thread, wait until it's finished."""
if self.thread is not None:
self.alive.clear() # clear alive event for thread
self.thread.join() # wait until thread has finished
self.thread = None
def __set_properties(self):
# begin wxGlade: TerminalFrame.__set_properties
self.SetTitle("Serial Terminal")
self.SetSize((546, 383))
self.text_ctrl_output.SetFont(wx.Font(9, wx.MODERN, wx.NORMAL, wx.NORMAL, 0, ""))
# end wxGlade
def __do_layout(self):
# begin wxGlade: TerminalFrame.__do_layout
sizer_1 = wx.BoxSizer(wx.VERTICAL)
sizer_1.Add(self.text_ctrl_output, 1, wx.EXPAND, 0)
self.SetSizer(sizer_1)
self.Layout()
# end wxGlade
def __attach_events(self):
# register events at the controls
self.Bind(wx.EVT_MENU, self.OnClear, id=ID_CLEAR)
self.Bind(wx.EVT_MENU, self.OnSaveAs, id=ID_SAVEAS)
self.Bind(wx.EVT_MENU, self.OnExit, id=ID_EXIT)
self.Bind(wx.EVT_MENU, self.OnPortSettings, id=ID_SETTINGS)
self.Bind(wx.EVT_MENU, self.OnTermSettings, id=ID_TERM)
self.text_ctrl_output.Bind(wx.EVT_CHAR, self.OnKey)
self.Bind(EVT_SERIALRX, self.OnSerialRead)
self.Bind(wx.EVT_CLOSE, self.OnClose)
def OnExit(self, event): # wxGlade: TerminalFrame.
"""Menu point Exit"""
self.Close()
def OnClose(self, event):
"""Called on application shutdown."""
self.StopThread() # stop reader thread
self.serial.close() # cleanup
self.Destroy() # close windows, exit app
def OnSaveAs(self, event): # wxGlade: TerminalFrame.
"""Save contents of output window."""
with wx.FileDialog(
None,
"Save Text As...",
".",
"",
"Text File|*.txt|All Files|*",
wx.SAVE) as dlg:
if dlg.ShowModal() == wx.ID_OK:
filename = dlg.GetPath()
with codecs.open(filename, 'w', encoding='utf-8') as f:
text = self.text_ctrl_output.GetValue().encode("utf-8")
f.write(text)
def OnClear(self, event): # wxGlade: TerminalFrame.
"""Clear contents of output window."""
self.text_ctrl_output.Clear()
def OnPortSettings(self, event): # wxGlade: TerminalFrame.
"""
Show the port settings dialog. The reader thread is stopped for the
settings change.
"""
if event is not None: # will be none when called on startup
self.StopThread()
self.serial.close()
ok = False
while not ok:
with wxSerialConfigDialog.SerialConfigDialog(
self,
-1,
"",
show=wxSerialConfigDialog.SHOW_BAUDRATE | wxSerialConfigDialog.SHOW_FORMAT | wxSerialConfigDialog.SHOW_FLOW,
serial=self.serial) as dialog_serial_cfg:
dialog_serial_cfg.CenterOnParent()
result = dialog_serial_cfg.ShowModal()
# open port if not called on startup, open it on startup and OK too
if result == wx.ID_OK or event is not None:
try:
self.serial.open()
except serial.SerialException as e:
with wx.MessageDialog(self, str(e), "Serial Port Error", wx.OK | wx.ICON_ERROR)as dlg:
dlg.ShowModal()
else:
self.StartThread()
self.SetTitle("Serial Terminal on {} [{},{},{},{}{}{}]".format(
self.serial.portstr,
self.serial.baudrate,
self.serial.bytesize,
self.serial.parity,
self.serial.stopbits,
' RTS/CTS' if self.serial.rtscts else '',
' Xon/Xoff' if self.serial.xonxoff else '',
))
ok = True
else:
# on startup, dialog aborted
self.alive.clear()
ok = True
def OnTermSettings(self, event): # wxGlade: TerminalFrame.
"""\
Menu point Terminal Settings. Show the settings dialog
with the current terminal settings.
"""
with TerminalSettingsDialog(self, -1, "", settings=self.settings) as dialog:
dialog.CenterOnParent()
dialog.ShowModal()
def OnKey(self, event):
"""\
Key event handler. If the key is in the ASCII range, write it to the
serial port. Newline handling and local echo is also done here.
"""
code = event.GetUnicodeKey()
if code < 256: # XXX bug in some versions of wx returning only capital letters
code = event.GetKeyCode()
if code == 13: # is it a newline? (check for CR which is the RETURN key)
if self.settings.echo: # do echo if needed
self.text_ctrl_output.AppendText('\n')
if self.settings.newline == NEWLINE_CR:
self.serial.write(b'\r') # send CR
elif self.settings.newline == NEWLINE_LF:
self.serial.write(b'\n') # send LF
elif self.settings.newline == NEWLINE_CRLF:
self.serial.write(b'\r\n') # send CR+LF
else:
char = chr(code)
if self.settings.echo: # do echo if needed
self.WriteText(char)
self.serial.write(char.encode('UTF-8', 'replace')) # send the character
def WriteText(self, text):
if self.settings.unprintable:
text = ''.join([c if (c >= ' ' and c != '\x7f') else chr(0x2400 + ord(c)) for c in text])
self.text_ctrl_output.AppendText(text)
def OnSerialRead(self, event):
"""Handle input from the serial port."""
self.WriteText(event.data.decode('UTF-8', 'replace'))
def ComPortThread(self):
"""\
Thread that handles the incoming traffic. Does the basic input
transformation (newlines) and generates an SerialRxEvent
"""
while self.alive.isSet():
b = self.serial.read(self.serial.in_waiting or 1)
if b:
# newline transformation
if self.settings.newline == NEWLINE_CR:
b = b.replace(b'\r', b'\n')
elif self.settings.newline == NEWLINE_LF:
pass
elif self.settings.newline == NEWLINE_CRLF:
b = b.replace(b'\r\n', b'\n')
event = SerialRxEvent(self.GetId(), b)
self.GetEventHandler().AddPendingEvent(event)
def OnRTS(self, event): # wxGlade: TerminalFrame.
self.serial.rts = event.IsChecked()
def OnDTR(self, event): # wxGlade: TerminalFrame.
self.serial.dtr = event.Checked()
# end of class TerminalFrame
class MyApp(wx.App):
def OnInit(self):
wx.InitAllImageHandlers()
frame_terminal = TerminalFrame(None, -1, "")
self.SetTopWindow(frame_terminal)
frame_terminal.Show(True)
return 1
# end of class MyApp
if __name__ == "__main__":
app = MyApp(0)
app.MainLoop()
Comments
comments powered by Disqus