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<TITLE>PmwCounter.py</TITLE>
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<PRE>
import string
import sys
import Tkinter
import Pmw
<STRONG>def _changeNumber</STRONG>(text, factor, increment, min, max):
value = string.atoi(text)
if factor > 0:
if max != <FONT COLOR="#009900">''</FONT> and value >= max:
raise ValueError
value = (value / increment) * increment + increment
else:
if min != <FONT COLOR="#009900">''</FONT> and value <= min:
raise ValueError
value = ((value - 1) / increment) * increment
if min != <FONT COLOR="#009900">''</FONT> and value < min:
value = min
if max != <FONT COLOR="#009900">''</FONT> and value > max:
value = max
return str(value)
<STRONG>def _changeReal</STRONG>(text, factor, increment, min, max):
value = string.atof(text)
if factor > 0:
if max != <FONT COLOR="#009900">''</FONT> and value >= max:
raise ValueError
else:
if min != <FONT COLOR="#009900">''</FONT> and value <= min:
raise ValueError
<FONT COLOR="#DD0000"># Compare reals using str() to avoid problems caused by binary</FONT>
<FONT COLOR="#DD0000"># numbers being only approximations to decimal numbers.</FONT>
div = int(value / increment)
text = str(value)
if text == str(div * increment) or text == str((div + 1) * increment):
value = value + factor * increment
elif factor > 0:
value = (div + 1) * increment
else:
value = div * increment
if min != <FONT COLOR="#009900">''</FONT> and value < min:
value = min
if max != <FONT COLOR="#009900">''</FONT> and value > max:
value = max
return str(value)
<STRONG>def _changeDate_formatted</STRONG>(format, value, factor, increment, min, max, yyyy):
jdn = datestringtojdn(value, format) + factor * increment
if min != <FONT COLOR="#009900">''</FONT>:
min = datestringtojdn(min, format)
if jdn < min:
jdn = min
if max != <FONT COLOR="#009900">''</FONT>:
max = datestringtojdn(max, format)
if jdn > max:
jdn = max
y, m, d = jdntoymd(jdn)
result = <FONT COLOR="#009900">''</FONT>
for index in range(3):
if index > 0:
result = result + <FONT COLOR="#009900">'/'</FONT>
f = format[index]
if f == <FONT COLOR="#009900">'y'</FONT>:
if yyyy:
result = result + <FONT COLOR="#009900">'%02d'</FONT> % y
else:
result = result + <FONT COLOR="#009900">'%02d'</FONT> % (y % 100)
elif f == <FONT COLOR="#009900">'m'</FONT>:
result = result + <FONT COLOR="#009900">'%02d'</FONT> % m
elif f == <FONT COLOR="#009900">'d'</FONT>:
result = result + <FONT COLOR="#009900">'%02d'</FONT> % d
return result
<STRONG>def _changeDate_dmy</STRONG>(value, factor, increment, min, max):
return _changeDate_formatted(<FONT COLOR="#009900">'dmy'</FONT>, value, factor, increment, min, max, 0)
<STRONG>def _changeDate_mdy</STRONG>(value, factor, increment, min, max):
return _changeDate_formatted(<FONT COLOR="#009900">'mdy'</FONT>, value, factor, increment, min, max, 0)
<STRONG>def _changeDate_ymd</STRONG>(value, factor, increment, min, max):
return _changeDate_formatted(<FONT COLOR="#009900">'ymd'</FONT>, value, factor, increment, min, max, 0)
<STRONG>def _changeDate_dmy4</STRONG>(value, factor, increment, min, max):
return _changeDate_formatted(<FONT COLOR="#009900">'dmy'</FONT>, value, factor, increment, min, max, 1)
<STRONG>def _changeDate_mdy4</STRONG>(value, factor, increment, min, max):
return _changeDate_formatted(<FONT COLOR="#009900">'mdy'</FONT>, value, factor, increment, min, max, 1)
<STRONG>def _changeDate_y4md</STRONG>(value, factor, increment, min, max):
return _changeDate_formatted(<FONT COLOR="#009900">'ymd'</FONT>, value, factor, increment, min, max, 1)
<STRONG>def _changeTime24</STRONG>(value, factor, increment, min, max):
return _changeTimeN(value, factor, increment, min, max, 1)
_SECSPERDAY = 24 * 60 * 60
<STRONG>def _changeTimeN</STRONG>(value, factor, increment, min, max, time24 = 0):
unixTime = timestringtoseconds(value)
if factor > 0:
chunks = unixTime / increment + 1
else:
chunks = (unixTime - 1) / increment
unixTime = chunks * increment
if time24:
while unixTime < 0:
unixTime = unixTime + _SECSPERDAY
while unixTime >= _SECSPERDAY:
unixTime = unixTime - _SECSPERDAY
if min != <FONT COLOR="#009900">''</FONT>:
min = timestringtoseconds(min)
if unixTime < min:
unixTime = min
if max != <FONT COLOR="#009900">''</FONT>:
max = timestringtoseconds(max)
if unixTime > max:
unixTime = max
if unixTime < 0:
unixTime = -unixTime
sign = <FONT COLOR="#009900">'-'</FONT>
else:
sign = <FONT COLOR="#009900">''</FONT>
secs = unixTime % 60
unixTime = unixTime / 60
mins = unixTime % 60
hours = unixTime / 60
return <FONT COLOR="#009900">'%s%02d:%02d:%02d'</FONT> % (sign, hours, mins, secs)
<STRONG>def timestringtoseconds</STRONG>(text):
inputList = string.split(text, <FONT COLOR="#009900">':'</FONT>)
if len(inputList) != 3:
raise TypeError, <FONT COLOR="#009900">'invalid value: '</FONT> + text
if inputList[0][0] == <FONT COLOR="#009900">'-'</FONT>:
inputList[0] = inputList[0][1:]
sign = -1
else:
sign = 1
hour = string.atoi(inputList[0])
minute = string.atoi(inputList[1])
second = string.atoi(inputList[2])
return sign * (hour * 60 * 60 + minute * 60 + second)
_year_pivot = 50
_century = 2000
<STRONG>def setyearpivot</STRONG>(pivot, century = None):
global _year_pivot
_year_pivot = pivot
if century is not None:
global _century
_century = century
<STRONG>def datestringtojdn</STRONG>(text, format):
inputList = string.split(text, <FONT COLOR="#009900">'/'</FONT>)
if len(inputList) != 3:
raise TypeError, <FONT COLOR="#009900">'invalid value: '</FONT> + text
if format not in (<FONT COLOR="#009900">'dmy'</FONT>, <FONT COLOR="#009900">'mdy'</FONT>, <FONT COLOR="#009900">'ymd'</FONT>):
raise TypeError, <FONT COLOR="#009900">'invalid format: '</FONT> + format
formatList = list(format)
day = string.atoi(inputList[formatList.index(<FONT COLOR="#009900">'d'</FONT>)])
month = string.atoi(inputList[formatList.index(<FONT COLOR="#009900">'m'</FONT>)])
year = string.atoi(inputList[formatList.index(<FONT COLOR="#009900">'y'</FONT>)])
if _year_pivot is not None:
if year >= 0 and year < 100:
if year <= _year_pivot:
year = year + _century
else:
year = year + _century - 100
return ymdtojdn(year, month, day)
<STRONG>def _cdiv</STRONG>(a, b):
<FONT COLOR="#DD0000"># Return a / b as calculated by most C language implementations,</FONT>
<FONT COLOR="#DD0000"># assuming both a and b are integers.</FONT>
if a * b > 0:
return a / b
else:
return -(abs(a) / abs(b))
<STRONG>def ymdtojdn</STRONG>(y, m, d, julian = -1, papal = 1):
<FONT COLOR="#DD0000"># set Julian flag if auto set</FONT>
if julian < 0:
if papal: <FONT COLOR="#DD0000"># Pope Gregory XIII's decree</FONT>
lastJulianDate = 15821004L <FONT COLOR="#DD0000"># last day to use Julian calendar</FONT>
else: <FONT COLOR="#DD0000"># British-American usage</FONT>
lastJulianDate = 17520902L <FONT COLOR="#DD0000"># last day to use Julian calendar</FONT>
julian = ((y * 100L) + m) * 100 + d <= lastJulianDate
if y < 0:
<FONT COLOR="#DD0000"># Adjust BC year</FONT>
y = y + 1
if julian:
return 367L * y - _cdiv(7 * (y + 5001L + _cdiv((m - 9), 7)), 4) + \
_cdiv(275 * m, 9) + d + 1729777L
else:
return (d - 32076L) + \
_cdiv(1461L * (y + 4800L + _cdiv((m - 14), 12)), 4) + \
_cdiv(367 * (m - 2 - _cdiv((m - 14), 12) * 12), 12) - \
_cdiv((3 * _cdiv((y + 4900L + _cdiv((m - 14), 12)), 100)), 4) + \
1 <FONT COLOR="#DD0000"># correction by rdg</FONT>
<STRONG>def jdntoymd</STRONG>(jdn, julian = -1, papal = 1):
<FONT COLOR="#DD0000"># set Julian flag if auto set</FONT>
if julian < 0:
if papal: <FONT COLOR="#DD0000"># Pope Gregory XIII's decree</FONT>
lastJulianJdn = 2299160L <FONT COLOR="#DD0000"># last jdn to use Julian calendar</FONT>
else: <FONT COLOR="#DD0000"># British-American usage</FONT>
lastJulianJdn = 2361221L <FONT COLOR="#DD0000"># last jdn to use Julian calendar</FONT>
julian = (jdn <= lastJulianJdn);
x = jdn + 68569L
if julian:
x = x + 38
daysPer400Years = 146100L
fudgedDaysPer4000Years = 1461000L + 1
else:
daysPer400Years = 146097L
fudgedDaysPer4000Years = 1460970L + 31
z = _cdiv(4 * x, daysPer400Years)
x = x - _cdiv((daysPer400Years * z + 3), 4)
y = _cdiv(4000 * (x + 1), fudgedDaysPer4000Years)
x = x - _cdiv(1461 * y, 4) + 31
m = _cdiv(80 * x, 2447)
d = x - _cdiv(2447 * m, 80)
x = _cdiv(m, 11)
m = m + 2 - 12 * x
y = 100 * (z - 49) + y + x
<FONT COLOR="#DD0000"># Convert from longs to integers.</FONT>
yy = int(y)
mm = int(m)
dd = int(d)
if yy <= 0:
<FONT COLOR="#DD0000"># Adjust BC years.</FONT>
yy = yy - 1
return (yy, mm, dd)
<FONT COLOR="#DD0000"># hexadecimal, alphabetic, alphanumeric not implemented</FONT>
_counterCommands = {
<FONT COLOR="#009900">'numeric'</FONT> : _changeNumber, # } integer
<FONT COLOR="#009900">'integer'</FONT> : _changeNumber, # } these two use the same function
<FONT COLOR="#009900">'real'</FONT> : _changeReal, # real number
<FONT COLOR="#009900">'timeN'</FONT> : _changeTimeN, # HH:MM:SS
<FONT COLOR="#009900">'time24'</FONT> : _changeTime24, # HH:MM:SS (wraps around at 23:59:59)
<FONT COLOR="#009900">'date_dmy'</FONT> : _changeDate_dmy, # DD/MM/YY
<FONT COLOR="#009900">'date_mdy'</FONT> : _changeDate_mdy, # MM/DD/YY
<FONT COLOR="#009900">'date_ymd'</FONT> : _changeDate_ymd, # YY/MM/DD
<FONT COLOR="#009900">'date_dmy4'</FONT> : _changeDate_dmy4, # DD/MM/YYYY
<FONT COLOR="#009900">'date_mdy4'</FONT> : _changeDate_mdy4, # MM/DD/YYYY
<FONT COLOR="#009900">'date_y4md'</FONT> : _changeDate_y4md, # YYYY/MM/DD
}
<STRONG><FONT COLOR="#CC6600">class Counter</FONT></STRONG>(Pmw.MegaWidget):
<FONT COLOR="#DD0000"># Up-down counter</FONT>
<FONT COLOR="#DD0000"># A Counter is a single-line entry widget with Up and Down arrows</FONT>
<FONT COLOR="#DD0000"># which increment and decrement the value in the entry. By</FONT>
<FONT COLOR="#DD0000"># default, may be used for entering dates, times, numbers. User</FONT>
<FONT COLOR="#DD0000"># defined functions may be specified for specialised counting.</FONT>
<STRONG> def __init__</STRONG>(self, parent = None, **kw):
<FONT COLOR="#DD0000"># Define the megawidget options.</FONT>
INITOPT = Pmw.INITOPT
optiondefs = (
(<FONT COLOR="#009900">'autorepeat'</FONT>, 1, INITOPT),
(<FONT COLOR="#009900">'buttonaspect'</FONT>, 1.0, INITOPT),
(<FONT COLOR="#009900">'datatype'</FONT>, <FONT COLOR="#009900">'numeric'</FONT>, self._datatype),
(<FONT COLOR="#009900">'increment'</FONT>, 1, None),
(<FONT COLOR="#009900">'initwait'</FONT>, 300, INITOPT),
(<FONT COLOR="#009900">'labelmargin'</FONT>, 0, INITOPT),
(<FONT COLOR="#009900">'labelpos'</FONT>, None, INITOPT),
(<FONT COLOR="#009900">'max'</FONT>, <FONT COLOR="#009900">''</FONT>, None),
(<FONT COLOR="#009900">'min'</FONT>, <FONT COLOR="#009900">''</FONT>, None),
(<FONT COLOR="#009900">'orient'</FONT>, <FONT COLOR="#009900">'horizontal'</FONT>, INITOPT),
(<FONT COLOR="#009900">'padx'</FONT>, 0, INITOPT),
(<FONT COLOR="#009900">'pady'</FONT>, 0, INITOPT),
(<FONT COLOR="#009900">'repeatrate'</FONT>, 50, INITOPT),
)
self.defineoptions(kw, optiondefs)
<FONT COLOR="#DD0000"># Initialise the base class (after defining the options).</FONT>
Pmw.MegaWidget.__init__(self, parent)
<FONT COLOR="#DD0000"># Create the components.</FONT>
interior = self.interior()
<FONT COLOR="#DD0000"># If there is no label, put the arrows and the entry directly</FONT>
<FONT COLOR="#DD0000"># into the interior, otherwise create a frame for them. In</FONT>
<FONT COLOR="#DD0000"># either case the border around the arrows and the entry will</FONT>
<FONT COLOR="#DD0000"># be raised (but not around the label).</FONT>
if self[<FONT COLOR="#009900">'labelpos'</FONT>] is None:
frame = interior
else:
frame = self.createcomponent(<FONT COLOR="#009900">'frame'</FONT>,
(), None,
Tkinter.Frame, (interior,))
frame.grid(column=2, row=2, sticky=<FONT COLOR="#009900">'nsew'</FONT>)
interior.grid_columnconfigure(2, weight=1)
interior.grid_rowconfigure(2, weight=1)
frame.configure(relief = <FONT COLOR="#009900">'raised'</FONT>, borderwidth = 1)
<FONT COLOR="#DD0000"># Create the down arrow.</FONT>
self._downArrowBtn = self.createcomponent(<FONT COLOR="#009900">'downarrow'</FONT>,
(), <FONT COLOR="#009900">'Arrow'</FONT>,
Tkinter.Canvas, (frame,),
width = 16, height = 16, relief = <FONT COLOR="#009900">'raised'</FONT>, borderwidth = 2)
<FONT COLOR="#DD0000"># Create the entry field.</FONT>
self._counterEntry = self.createcomponent(<FONT COLOR="#009900">'entryfield'</FONT>,
((<FONT COLOR="#009900">'entry'</FONT>, <FONT COLOR="#009900">'entryfield_entry'</FONT>),), None,
Pmw.EntryField, (frame,))
<FONT COLOR="#DD0000"># Create the up arrow.</FONT>
self._upArrowBtn = self.createcomponent(<FONT COLOR="#009900">'uparrow'</FONT>,
(), <FONT COLOR="#009900">'Arrow'</FONT>,
Tkinter.Canvas, (frame,),
width = 16, height = 16, relief = <FONT COLOR="#009900">'raised'</FONT>, borderwidth = 2)
padx = self[<FONT COLOR="#009900">'padx'</FONT>]
pady = self[<FONT COLOR="#009900">'pady'</FONT>]
if self[<FONT COLOR="#009900">'orient'</FONT>] == <FONT COLOR="#009900">'horizontal'</FONT>:
self._downArrowBtn.grid(column = 0, row = 0)
self._counterEntry.grid(column = 1, row = 0, sticky = <FONT COLOR="#009900">'news'</FONT>)
self._upArrowBtn.grid(column = 2, row = 0)
frame.grid_columnconfigure(1, weight = 1)
frame.grid_rowconfigure(0, weight = 1)
if Tkinter.TkVersion >= 4.2:
frame.grid_columnconfigure(0, pad = padx)
frame.grid_columnconfigure(2, pad = padx)
frame.grid_rowconfigure(0, pad = pady)
else:
self._upArrowBtn.grid(column = 0, row = 0)
self._counterEntry.grid(column = 0, row = 1, sticky = <FONT COLOR="#009900">'news'</FONT>)
self._downArrowBtn.grid(column = 0, row = 2)
frame.grid_columnconfigure(0, weight = 1)
frame.grid_rowconfigure(1, weight = 1)
if Tkinter.TkVersion >= 4.2:
frame.grid_rowconfigure(0, pad = pady)
frame.grid_rowconfigure(2, pad = pady)
frame.grid_columnconfigure(0, pad = padx)
self.createlabel(interior)
self._upArrowBtn.bind(<FONT COLOR="#009900">'<Configure>'</FONT>, self._drawUpArrow)
self._upArrowBtn.bind(<FONT COLOR="#009900">'<1>'</FONT>, self._countUp)
self._upArrowBtn.bind(<FONT COLOR="#009900">'<Any-ButtonRelease-1>'</FONT>, self._stopUp)
self._downArrowBtn.bind(<FONT COLOR="#009900">'<Configure>'</FONT>, self._drawDownArrow)
self._downArrowBtn.bind(<FONT COLOR="#009900">'<1>'</FONT>, self._countDown)
self._downArrowBtn.bind(<FONT COLOR="#009900">'<Any-ButtonRelease-1>'</FONT>, self._stopDown)
self._counterEntry.bind(<FONT COLOR="#009900">'<Configure>'</FONT>, self._resizeArrow)
entry = self._counterEntry.component(<FONT COLOR="#009900">'entry'</FONT>)
entry.bind(<FONT COLOR="#009900">'<Down>'</FONT>, lambda event, s = self: s.decrement())
entry.bind(<FONT COLOR="#009900">'<Up>'</FONT>, lambda event, s = self: s.increment())
<FONT COLOR="#DD0000"># Initialise instance variables.</FONT>
self._flag = <FONT COLOR="#009900">'stopped'</FONT>
self._timerId = None
<FONT COLOR="#DD0000"># Check keywords and initialise options.</FONT>
self.initialiseoptions(Counter)
<STRONG> def _resizeArrow</STRONG>(self, event):
for btn in (self._upArrowBtn, self._downArrowBtn):
bw = (string.atoi(btn[<FONT COLOR="#009900">'borderwidth'</FONT>]) + \
string.atoi(btn[<FONT COLOR="#009900">'highlightthickness'</FONT>]))
newHeight = self._counterEntry.winfo_reqheight() - 2 * bw
newWidth = newHeight * self[<FONT COLOR="#009900">'buttonaspect'</FONT>]
btn.configure(width=newWidth, height=newHeight)
self._drawArrow(btn)
<STRONG> def _drawUpArrow</STRONG>(self, event):
self._drawArrow(self._upArrowBtn)
<STRONG> def _drawDownArrow</STRONG>(self, event):
self._drawArrow(self._downArrowBtn)
<STRONG> def _drawArrow</STRONG>(self, arrow):
arrow.delete(<FONT COLOR="#009900">'arrow'</FONT>)
fg = self._counterEntry.cget(<FONT COLOR="#009900">'entry_foreground'</FONT>)
bw = (string.atoi(arrow[<FONT COLOR="#009900">'borderwidth'</FONT>]) +
string.atoi(arrow[<FONT COLOR="#009900">'highlightthickness'</FONT>])) / 2
h = string.atoi(arrow[<FONT COLOR="#009900">'height'</FONT>]) + 2 * bw
w = string.atoi(arrow[<FONT COLOR="#009900">'width'</FONT>]) + 2 * bw
if arrow == self._downArrowBtn:
if self[<FONT COLOR="#009900">'orient'</FONT>] == <FONT COLOR="#009900">'horizontal'</FONT>:
arrow.create_polygon(
0.25 * w + bw, 0.5 * h + bw,
0.75 * w + bw, 0.25 * h + bw,
0.75 * w + bw, 0.75 * h + bw,
fill=fg, tag=<FONT COLOR="#009900">'arrow'</FONT>)
else:
arrow.create_polygon(
0.25 * w + bw, 0.25 * h + bw,
0.75 * w + bw, 0.25 * h + bw,
0.50 * w + bw, 0.75 * h + bw,
fill=fg, tag=<FONT COLOR="#009900">'arrow'</FONT>)
else:
if self[<FONT COLOR="#009900">'orient'</FONT>] == <FONT COLOR="#009900">'horizontal'</FONT>:
arrow.create_polygon(
0.75 * w + bw, 0.5 * h + bw,
0.25 * w + bw, 0.25 * h + bw,
0.25 * w + bw, 0.75 * h + bw,
fill=fg, tag=<FONT COLOR="#009900">'arrow'</FONT>)
else:
arrow.create_polygon(
0.5 * w + bw, 0.25 * h + bw,
0.25 * w + bw, 0.75 * h + bw,
0.75 * w + bw, 0.75 * h + bw,
fill=fg, tag=<FONT COLOR="#009900">'arrow'</FONT>)
<STRONG> def _countUp</STRONG>(self, event):
self._upRelief = self._upArrowBtn.cget(<FONT COLOR="#009900">'relief'</FONT>)
self._upArrowBtn.configure(relief=<FONT COLOR="#009900">'sunken'</FONT>)
self._count(1, <FONT COLOR="#009900">'start'</FONT>)
<STRONG> def _countDown</STRONG>(self, event):
self._downRelief = self._downArrowBtn.cget(<FONT COLOR="#009900">'relief'</FONT>)
self._downArrowBtn.configure(relief=<FONT COLOR="#009900">'sunken'</FONT>)
self._count(-1, <FONT COLOR="#009900">'start'</FONT>)
<STRONG> def increment</STRONG>(self):
self._count(1, <FONT COLOR="#009900">'force'</FONT>)
<STRONG> def decrement</STRONG>(self):
self._count(-1, <FONT COLOR="#009900">'force'</FONT>)
<STRONG> def _datatype</STRONG>(self):
datatype = self[<FONT COLOR="#009900">'datatype'</FONT>]
if _counterCommands.has_key(datatype):
self._counterCommand = _counterCommands[datatype]
elif callable(datatype):
self._counterCommand = datatype
else:
validValues = _counterCommands.keys()
validValues.sort()
raise ValueError, (<FONT COLOR="#009900">'bad datatype value "%s": must be a'</FONT> +
<FONT COLOR="#009900">' function or one of %s'</FONT>) % (datatype, validValues)
<STRONG> def _count</STRONG>(self, factor, newFlag=None):
if newFlag != <FONT COLOR="#009900">'force'</FONT>:
if newFlag is not None:
self._flag = newFlag
if self._flag == <FONT COLOR="#009900">'stopped'</FONT>:
return
value = self._counterEntry.get()
try:
value = self._counterCommand(value, factor,
self[<FONT COLOR="#009900">'increment'</FONT>], self[<FONT COLOR="#009900">'min'</FONT>], self[<FONT COLOR="#009900">'max'</FONT>])
except:
sys.exc_traceback = None <FONT COLOR="#DD0000"># Clean up object references</FONT>
if newFlag != <FONT COLOR="#009900">'force'</FONT>:
if factor == 1:
self._upArrowBtn.configure(relief=self._upRelief)
else:
self._downArrowBtn.configure(relief=self._downRelief)
self._flag = <FONT COLOR="#009900">'stopped'</FONT>
self.bell()
return
<FONT COLOR="#DD0000"># If incrementing produces an invalid value, stop counting.</FONT>
if not self._counterEntry.setentry(value):
self._flag = <FONT COLOR="#009900">'stopped'</FONT>
return
if newFlag != <FONT COLOR="#009900">'force'</FONT>:
if self[<FONT COLOR="#009900">'autorepeat'</FONT>]:
if self._flag == <FONT COLOR="#009900">'start'</FONT>:
delay = self[<FONT COLOR="#009900">'initwait'</FONT>]
self._flag = <FONT COLOR="#009900">'running'</FONT>
else:
delay = self[<FONT COLOR="#009900">'repeatrate'</FONT>]
self._timerId = self.after(
delay, lambda self=self, factor=factor: self._count(factor))
<STRONG> def _stopUp</STRONG>(self, event):
if self._timerId is not None:
self.after_cancel(self._timerId)
self._timerId = None
self._upArrowBtn.configure(relief=self._upRelief)
self._flag = <FONT COLOR="#009900">'stopped'</FONT>
<STRONG> def _stopDown</STRONG>(self, event):
if self._timerId is not None:
self.after_cancel(self._timerId)
self._timerId = None
self._downArrowBtn.configure(relief=self._downRelief)
self._flag = <FONT COLOR="#009900">'stopped'</FONT>
<STRONG> def destroy</STRONG>(self):
if self._timerId is not None:
self.after_cancel(self._timerId)
self._timerId = None
Pmw.MegaWidget.destroy(self)
Pmw.forwardmethods(Counter, Pmw.EntryField, <FONT COLOR="#009900">'_counterEntry'</FONT>)
</PRE>
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