Cameron Laird wrote:
> On Wed, Mar 05, 2008 at 05:55:37PM +0100, Gigs_ wrote:
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> .
> .
>
>>> I wrote a simple GUI with tkinter which executes a function when
>>> pressing a button. When I press the button, the function indeed executes
>>> starts running itself (it's a loop which draws a graph using gnuplot).
>>> As long as the loop is running, I can't access the GUI - it's grayed
>>> out. Only when I break the loop can I properly see the GUI back again.
>>>
>>>
>>> Is this something you're familiar with or did I define the GUI improperly?
>>>
> .
> .
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>
>> you will need to make thread for that function to separate execution
>> from gui
>>
> .
> .
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> Coding with threads certainly is one common approach. As
> the e-mail I just sent hints, it's not the only one--and
> sometimes not the best.
>
Cameron, is it possible to give a more tkinter-specific hint, i.e. in
the tkinter syntax? I started reading through the link you mentioned but
the syntax looks more like core Tk/Tcl. In other words, how do I make a
thread (or an equivalent solution) for a function in tkinter-python?
Let's say that the code looks like the following sample:
import Numeric, time, Gnuplot
def cooldown()
A = Numeric.arange(-1, 1, .1)
delay = 5
########################################
########################################
X = []
Y = []
XY = []
g = Gnuplot.Gnuplot()
g('set data style linespoints')
try:
while A[0]<10:
val1 = 1
val2 = 2
XY.append([val1, val2])
if len(XY) > 1:
g.plot(XY)
except KeyboardInterrupt: # Pressing Ctrl-C will result in
ending the program but saving all the data taken so far
pass
return g
win1 = Tk()
win1.title('Control Panel')
RunFrame = Frame(win1, bd = 2, relief = 'groove')
RunCooldown = Button(RunFrame)
RunCooldown.configure(text = 'Cooldown', fg = 'blue', command =
cooldown, cursor = 'target')
RunCooldown.pack(side = LEFT)
Thanks,
Amit.
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