Move functionality out of MenuBarController

[franzlst]

The MenuBarController contains a lot of functionality, e.g. for saving state machines, execution, grouping, etc. For other parts, like paste operations, it just triggers the ShortcutManager. In this case, the GraphicalEditorController does all the logic.

However, none of these controllers should do any logic related to these operations. Otherwise, the GUI fully depends on these widgets, which is not desired.

I just discussed this with @sebastian-brunner. We thought about moving all this into helper files, just like the existing state_machine_helper.py, but more separated into different files. Within the mvc folder, there could be a helper folder, containing a file execution.py managing the execution, state_machine.py doing save/new/open, states.py for add/group/etc, general.py for copy/paste/remove and so on.

This issue is open for discussion!

Originally created by @franzlst ([email protected]) at 2016-08-09 08:05:29+00:00 (moved from RMC internal repository)

[franzlst]

something like this?
https://rmc-github-server/stoertebeker23/rafcon/commit/fd137f61871176be368c47c4968d563d76fe386f

Originally created by stoertebeker23 ([email protected]) at 2017-02-09 09:06:20+00:00 (moved from RMC internal repository)

[franzlst]

Yes 😊

Originally created by @franzlst ([email protected]) at 2017-02-09 11:38:08+00:00 (moved from RMC internal repository)