On Tue, 16 Mar 2004 04:13:08 +1000 Daniel Stonier <[EMAIL PROTECTED]>
babbled:
>
> >
> > ie
> > while ((o = evas_object_bottom_get(evas)) evas_object_del(o);
> >
> > will completely clear all objects in a canvas and empty it out
> > completely.
> >
>
> Had some problems with implementing this - have attached a simple test
> program to illustrate the problem. At the first call of the
> evas_object_bottom_get function it grabs and then deletes the requested
> object, but a second call to the function returns exactly the same object.
> Running it in a while loop as above consequently results in an infinite
> loop and a hang. Does whatever the bottom_get function looks up need
> updating before re-use or is it a problem with the function?
>
> I had a quick snoop at the evas source for the evas_object_bottom_get
> function and got moosed. I'll have to sit down with a few drinks one day
> to try and get to grips with it so I can fiddle around with it myself.
>
> As an aside, the evas_object_top_get used in the same place in the above
> test program causes a segfault.
aaah oops - thanks! thats a bug on my part. let me explain. in order for evas to
"keep state" objects arent actually deleted when you call evas_object_del. they
are "flagged for deletion" but left there, they will be deleted next
evas_render() cycle when it no longer needs the state for deleted objects. my
code to get the object above/below/on top and on bottom didn't look at the
delete_me flag and just gave u the object anyway. thus the object was still
there but flagged for deletion - thus u always got the same object handle. :)
fixed now in cvs. do a cvs update. :)
--
------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler) [EMAIL PROTECTED]
熊耳 - 車君 (数田) [EMAIL PROTECTED]
Tokyo, Japan (東京 日本)
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