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Wrong behavior with State's extend property

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  • M Offline
    M Offline
    MaxL
    wrote on last edited by
    #1

    Hi everyone,

    I was playing around with States in QML when I found out a strange behavior.
    Considering this case
    @State
    {
    name: "mainState"
    when: firstBool

    }

    State
    {
    name: "subStateOfMain"
    when: secondBool
    extend: "mainState"
    }@

    In my sense we are in :
    mainState when and only when :
    @firstBool && !secondBool@

    subStateOfMain when and only when :
    @firstBool && secondBool@

    What really happens with Qt is that it does a OR instead of a AND for the extender State ( "subStateOfMain" here ). Does anyone else has the same issue or feel that what I described should be the actual behavior ?

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    • S Offline
      S Offline
      seawolf
      wrote on last edited by
      #2

      Hi,

      It's not going like you described. Of course states are acting as OR.

      From documentation :"When a state extends another state, it inherits all the changes of that state."

      example can be find here: http://jingfenghanmax.blogspot.fi/2010/08/extend-property-of-qml-state.html

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      • M Offline
        M Offline
        MaxL
        wrote on last edited by
        #3

        Thanks for you answer but for me it doesn't make sense to, in my case, have one state with firstBool && !secondBool while the other has firstBool && secondBool . At least we should have the possibility to choose between OR/AND .

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        • S Offline
          S Offline
          seawolf
          wrote on last edited by
          #4

          I can't see states you described "have one state with firstBool && !secondBool while the other has firstBool && secondBool . "

          you have one state when: firstBool and when: secondBool :)

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          • M Offline
            M Offline
            MaxL
            wrote on last edited by
            #5

            well then if you have firstBool && secondBool you don't know which state you are in. It would be the first that you have in your array.

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