On 6/13/07, Hakki Dogusan <[EMAIL PROTECTED]> wrote:
> Hi,
>
> John Labenski wrote:
> > [snip]
> > Anyway... The name of this function, "Delete()", is *very* generic and
> > will probably conflict with some class function eventually and I'm
> > surprised it hasn't already.
>
> o = wx.wxXXX(...)
> o:Destroy() is better due to wx naming?
>
> - If XXX class has a cpp Destroy method, it is already doing what we want
> - If not then we supply this method for Lua
The Destroy() that wxWidgets uses for it's wxObject classes usually
only deletes the ref data, but does nothing to the object. The
Destroy() for wxWindows uses delayed deletion and is fairly unique to
wxWidgets, I think.
This is valid
img = wx.wxImage(10,10); img:Destroy(); img:Create(10,10);
This is special to wxWidgets
win = wx.wxWindow(...); win:Destroy(); win:Create(...) <- should fail
Some of the changes I've been making are to make things a little less
wxWidgets centric so that other libraries can be easily wrapped
(changing they way baseclass functions are called for example). This
may not ever materialize, but I don't want some of the special
notation we've used cause problems.
> > What if we rename it to "delete()", lower case, since that is a NOT a
> > valid name for a class member function (I just tried it) and so there
> > cannot be a conflict with anything that ever gets bound by wxLua.
> >
> > This will also match the "new(...)" function that you can now use for
> > class constructors.
>
> Is it possible to have both?
>
> new - delete
> ... - Destroy
The Destroy() function will of course exist for any class that defines
it itself. The delete() function will be new and special to classes
that are designed to be able to deleted. In fact I was going to create
a separate global wx.delete(object) function (I hope it's possible) to
delete any userdata object. Currently you cannot delete a wxMenu
you've created.
For example: (this really shouldn't happen, but maybe for some strange
reason someone may want to do this)
menu = wx.wxMenu() -- not attached to a parent so nobody will ever delete this.
menu:delete() -- fails since you should almost never delete a menu so
we won't have this function.
wx.delete(menu) -- now you can delete it to avoid a memory leak.
Regards,
John Labenski
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