[Tkinter-discuss] Fwd: WxPython -> Tkinter

[Olrik Lenstra]

I see, Thanks a lot, I really don't wish to bother you any further, but
here's my current situation.
I am still a beginning programmer and I am not entirely sure where to put
this code exactly.

How would I go about using this code?

Thank you so much in advance.
Regards,
Olrik

2008/10/29 Guilherme Polo <ggpolo at gmail.com>

> ---------- Forwarded message ----------
> From: Guilherme Polo <ggpolo at gmail.com>
> Date: Oct 29, 2008 9:16 AM
> Subject: Re: [Tkinter-discuss] WxPython -> Tkinter
> To: Olrik Lenstra <o.lenstra at gmail.com>
> Cc: python-list at python.org
>
>
> On 10/29/08, Olrik Lenstra <o.lenstra at gmail.com> wrote:
>  > Hello everyone,
>  >
>  > A while ago I joined the Tutor mailing list, and they helped me out with
> a
>  > question regarding wxPython.
>  > Now however, I have tried a program in Tkinter and I would like to see
> if
>  > there is a similar command to "wx.SafeYield(self, True)".
>
>
> It will be a combination of commands, not a single one. Initially I
>  considered this as "probably without solution", since tcl acquired a
>  yield command just in the 8.6a3 release, but then I looked at
>  wx.SafeYield code and apparently it is possible to replicate it.
>
>  Here is an initial cut, it is very possible to contain something not
>  equivalent to wx.SafeYield (besides it could be improved):
>
>
>  import ttk
>
>  inside_tkyield = False
>  disabled_wins = {}
>
>  def safe_yield(window, only_if_needed=False):
>    window_disabler(window)
>
>    try:
>        return tk_yield(window, only_if_needed)
>    finally:
>        for widget, flags in disabled_wins.iteritems():
>            ttk.Widget.state(widget, flags)
>        disabled_wins.clear()
>
>
>  def window_disabler(window):
>    widgets = window.children.values()
>    widgets.append(window)
>
>    for widget in widgets:
>        if widget.instate(['!disabled']):
>            prev_flags = widget.state(['disabled'])
>            disabled_wins[widget] = prev_flags
>
>
>  def tk_yield(window, only_if_needed=False):
>    # wx implements this differently based on the backend it is using
>    global inside_tkyield
>    if inside_tkyield:
>        if not only_if_needed:
>            raise RuntimeError("safe_yield called recursively")
>
>        return False
>
>    inside_tkyield = True;
>
>    window.update()
>    window.update_idletasks()
>
>    inside_tkyield = False;
>
>    return True
>
>
>  Note that this depends on ttk widgets
>  (http://pypi.python.org/pypi/pyttk) since it uses widget.state to
>  disable and reenable the widgets. On windows the "wm" command supports
>  disabling the entire window, so it is easier if you can use it.
>
> [Forwarded because I sent to the wrong list first time]
>
>  >  Below is a copy of the message to the tutor list.
>  >
>  > > Dear Mailing list,
>  > >
>  > > a while ago a few of you helped me solve an issue I had with a GUI /
> scan
>  > > program that I made.
>  > > The problem was that when I tried to move the frame it would hang
> until
>  > the
>  > > scan was finished.
>  > > To solve this I had to add "wx.SafeYield(self, True)" to the scan and
> the
>  > > GUI wouldn't hang any more.
>  > > Now I have redone the program and have written it with Tkinter instead
> of
>  > > WxPython.
>  > >
>  > > So is there a similar command for Tkinter as there is for WxPython?
>  > >
>  > > Thanks in advance.
>  > > Regards,
>  > > Olrik
>  > >
>  >
>
> > _______________________________________________
>  >  Tkinter-discuss mailing list
>  >  Tkinter-discuss at python.org
>  > http://mail.python.org/mailman/listinfo/tkinter-discuss
>  >
>  >
>
>
>
>  --
>  -- Guilherme H. Polo Goncalves
>
>
> --
> -- Guilherme H. Polo Goncalves
> _______________________________________________
> Tkinter-discuss mailing list
> Tkinter-discuss at python.org
> http://mail.python.org/mailman/listinfo/tkinter-discuss
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/tkinter-discuss/attachments/20081029/1729a9ef/attachment.htm>