[umbrello] [Bug 53369] composite (nested) states in state diagrams

[Carsten Behling]

https://bugs.kde.org/show_bug.cgi?id=53369

--- Comment #29 from Carsten Behling <carsten.behling at gmail.com> ---
(In reply to Ralf Habacker from comment #28)
> Git commit 2148d2c766430714b3701247133a2166f75049b6 by Ralf Habacker.
> Committed on 01/11/2019 at 08:56.
> Pushed by habacker into branch 'master'.
> 
> Add support for non resizable widgets and apply to combined state widgets
> 
> M  +6    -3    umbrello/umlwidgets/statewidget.cpp
> M  +8    -0    umbrello/umlwidgets/umlwidget.h
> 
> https://commits.kde.org/umbrello/2148d2c766430714b3701247133a2166f75049b6

Hi Ralf, thanks for the outstanding work!!!

I tested the current version and found two issues:

1. When I remove a combined state the state diagram related diagram
remains.That may be desired behaviour since a class also remains in the Tree
View if deleted from diagram. However I can't treat a combined state diagram in
the same way as a class since it can't be dragged and dropped into an another
state diagram resulting in a combined state element.

So there are basically two solutions:

- to allow a drag and drop of a state diagram  into another one appearing as a
combined state (I think this would be the preferred method)
- remove the related state diagram with the related combined state

2. when I
a. add a combined state
b. adding elements e.g. states in the related state Diagramm
c. keep the element e.g. state selected in the toolbox instead of selecting the
cursor
d. switching back to the state diagram with the related combined state
e. selecting the cursor in the toolbox

=> every time I click into the combined state a new element of the last toolbox
selection of the sub state chart is added (e.g. a state in this case)

Im not shure if you are planning to edit directly the combined state. In this
case the toolbox selection of the parent diagram should be used instead of the
toolbox from the state diagram of the combined state (that is not open/active
tab).

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