On Sun, Sep 04, 2005 at 09:51:11AM +0200, N. Volbers wrote:
> def my_function(arg1, arg2, undolist=[]):
Have you checked to be sure that the default list argument is indeed
safe? This is usually very error-prone, because the list is created and
associated with the class, not the instance. Or is th
On Sun, Sep 04, 2005 at 09:51:11AM +0200, N. Volbers wrote:
> Look at "Documentation" and then at the "Developer's Guide". This is a
> very nice introduction to an undo mechanism that basically works like
> this: If you call an undoable function, then it must return an
> undo-tuple which contain
3. Yet another approach is used by gazpacho (google for link), where for
every action there is a wrapper with a do and an undo function.
I have tried this approach for a molecular editing tool and it worked
very well. Later on I've switched to a similar (but more complex)
mechanism that was ev
On 9/4/05, Brett Viren <[EMAIL PROTECTED]> wrote:
> Hi Jens,
>
> Jens Geiregat <[EMAIL PROTECTED]> writes:
>
> > I would like to add undo and redo buttons to my program. The problem
> > is I do not have any idea how to implement the undo and redo-actions.
> > Are there some (easy) examples on thi
Jens Geiregat schrieb:
Hi,
I would like to add undo and redo buttons to my program. The problem
is I do not have any idea how to implement the undo and redo-actions.
Are there some (easy) examples on this subject? Or other (small)
pygtk-programs that support undo and redo?
Hello Jens,
you
Hi Jens,
Jens Geiregat <[EMAIL PROTECTED]> writes:
> I would like to add undo and redo buttons to my program. The problem
> is I do not have any idea how to implement the undo and redo-actions.
> Are there some (easy) examples on this subject? Or other (small)
> pygtk-programs that support undo a
Hi,
I would like to add undo and redo buttons to my program. The problem
is I do not have any idea how to implement the undo and redo-actions.
Are there some (easy) examples on this subject? Or other (small)
pygtk-programs that support undo and redo?
thx,
Jens Geiregat
_
