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QScxml set state

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  • W Offline
    W Offline
    wpmccormick
    wrote on last edited by
    #1

    I am connecting to scxml states with a QWidget, and would like to be able to provide a "manual mode" for the state machine when stopped by allowing the application to programmatically set the current state. Is this even possible? If so, how?

    Thanks!

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      Do you mean something like submitting events by hand ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • W Offline
        W Offline
        wpmccormick
        wrote on last edited by
        #3

        No. we'd like to (for our own nefarious purposes) be able to set a new current state, even when there is no transition to that state from the current state.

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          In that case you should read the class implementation to see how its internal is working and how you might be able to influence that.

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • W Offline
            W Offline
            wpmccormick
            wrote on last edited by
            #5

            Yea, I've been doing a lot of reading class implementations, before I asked the question.

            So are you saying it can be done? Which class implementation exactly? By what method?

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #6

              What class did you read ?

              I'm not confirming nor informing the feasibility of what you want to achieve since I don't know exactly what you want to achieve.

              I was thinking about the QScxmlStateMachine class as a starting point.

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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              • W Offline
                W Offline
                wpmccormick
                wrote on last edited by
                #7

                It would probably be easier to answer which Scxml class I didn't read up on. So I've looked at QScxmlStateMachine many times. There's something in the Scxml spec about transitions with NULL ID's, but I've not been able to make it work.

                I stated what I want to do in my original post; I'll state again, in a slightly different form, so you can confirm and/or inform on feasibility: I want to know how (or if it's even possible) to force the state machine to a given state without a transition/target.

                I understand that you're probably no Scxml expert, so It's okay if you don't have the answers. But maybe you know someone who is an expert?

                Thanks!

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