Re: (apparently) undefined object, with attachment

[Hans Breuer <hans breuer org>]

Am 14.12.2014 um 02:14 schrieb George Georgalis:
> While editing a complex diagram, I tried to ungroup three "Flowchart
> Process" objects, on doing so, they disappeared. I was able to undo and
> cut/paste them into the attached document; where the behaviour can be
> repeated.
According to my test with your file the objects don't disappear due to 
ungrouping, they just move. After ungrouping there is "Selection of 3 
objects" shown in the status line. By hitting ctrl-e (Best Fit) you can 
make them visible again.

> For some unknown reason, the two segments connecting the objects where not
> cut with the grouped objects. So I pasted them into the doc separately.
Transformed groups don't support connections, not sure if this is related.

> Noteworthy, I am using head version from 2014-11-02, which includes my
> patch for larger handles
> https://mail.gnome.org/archives/dia-list/2014-November/msg00021.html
Again, I think this is not a side effect of the bigger handles.

> Also noteworthy, the behaviour is reminiscent of objects that would
> disappear when resizing iff my handles patch was applied cf
> https://mail.gnome.org/archives/dia-list/2014-October/msg00000.html
>
> Could the ungrouping function have an issue similar to prior
> Group::move_hande() issue with the handles patch?
The group is transformed, but by ungrouping the transformation is dropped, 
because not every object supports transformations. So I don't think there 
is a bug at all.

And I wonder about your subject "undefined object". Where did I miss the 
undefined object in your descriptiom or file?

-------- Hans "at" Breuer "dot" Org -----------
Tell me what you need, and I'll tell you how to
get along without it.                -- Dilbert