""" Implements a stop watch frame widget. """

def __init__(self, parent=None, **kw):

Frame.__init__(self, parent, kw)

self.ts = TextStar("COM1",9600,1)

self._start = 0.0

self._elapsedtime = 0.0

self._running = 0

self.timestr = StringVar()

self.makeWidgets()

self.counter = 10

self._update()

def makeWidgets(self):

""" Make the time label. """

l = Label(self, text="Com Port:")

l.grid(row=0,column=0,sticky=W)

self.port = Label(self, text=(self.ts.port.port,self.ts.port.baudrate))

self.port.grid(row=0,column=1,sticky=E)

self.etrSend = Entry(self, textvariable="")

self.etrSend.config(width=90)

self.etrSend.grid(row=1,column=0,sticky=W)

btnSend = Button(self,text='Send',command=self._send)

btnSend.grid(row=1,column=1,sticky=E)

history = Frame()

scrollbar = Scrollbar(history)

scrollbar.grid(row=0,column=1,sticky=N+E+S+W)

self.txtTerminal = Text(history,yscrollcommand=scrollbar.set)

self.txtTerminal.grid(row=0,column=0,sticky=E+W)

scrollbar.config(command=self.txtTerminal.yview)

history.grid(row=2,column=0)

frame = Frame()

frame.grid(row=3,columnspan=2)

Button(frame, text='Start', command=self.Start).grid(row=3,column=0,sticky=E+W,padx=5, pady=5)

Button(frame, text='Stop', command=self.Stop).grid(row=3,column=1,sticky=E+W,padx=5, pady=5)

Button(frame, text='Clear History', command=self.Reset).grid(row=3,column=2,sticky=E+W,padx=5, pady=5)

def _send(self):

if not(self.etrSend.get()==""):

self.ts.write(self.etrSend.get()+"\n")

self.etrSend.delete(0,END)

def _update(self):

""" Update the label with elapsed time. """

data = self.ts.read()

if len(data):

#print data

data1 = hexdump(data,16)

self.timestr.set(data1)

self.txtTerminal.insert(END,data1+"\n")

self.txtTerminal.yview(END)

self._timer = self.after(200, self._update)

def Start(self):

""" Start the stopwatch, ignore if running. """

self.counter += 1

if not self._running:

self._start = time.time() - self._elapsedtime

self._transmit()

#self._update()

self._running = 1

def _transmit(self):

""" Transmit the data periodically """

if self._running:

text = "Hello: " + str(self.counter)

self.ts.write(text)

self.counter += 1

self._timer2 = self.after(1000, self._transmit)

def Stop(self):

""" Stop the stopwatch, ignore if stopped. """

if self._running:

self.after_cancel(self._timer2)

self._running = 0

def Reset(self):

""" Reset the stopwatch. """

root = Tk()

root.title("TextStar Terminal")

menu = Menu(root)

root.config(menu=menu)

filemenu = Menu(menu)

serialmenu = Menu(menu)

menu.add_cascade(label="File", menu=filemenu)

menu.add_cascade(label="Serial Port", menu=serialmenu)

filemenu.add_command(label="New")

sw = TextStarTerminal(root)

sw.grid(row=0,padx=5,pady=5)