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Thread: Access QML enumeration from C++

  1. #1
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    Question Access QML enumeration from C++

    Hi,
    I have a Text Item that uses different kinds of Alignment and must be able to take this information from a C++ model. For example, I want to be able to set:
    Qt Code:
    1. delegate: Text {
    2. verticalAlignment: model.alignment // Text.AlignVCenter, Text.AlignTop or Text.AlignBottom
    3. ...
    4. }
    To copy to clipboard, switch view to plain text mode 
    I have not found anything about this in the docs (there is some stuff for "the other way 'round", for exposing c++ enums to QML of course)

    Is there a "best practice" for handling this problem?

  2. #2
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    Default Re: Access QML enumeration from C++

    Those enum value are from a C++ enum, Qt::AlignmentFlag
    You could try letting the model return the respective Qt::AlignmentFlag value

    Cheers,
    _

  3. The following user says thank you to anda_skoa for this useful post:

    sedi (14th April 2016)

  4. #3
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    Default Re: Access QML enumeration from C++

    Cool, you are absolutely right! How did you know (apart from: you just awesomely did )?
    Where can I find such information in similar cases?

    I didn't succeed in finding any relevant source of information about these connections.

  5. #4
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    Default Re: Access QML enumeration from C++

    Everything in QML, aside from its keywords and primitive types, comes from C++.

    So any enum value must have been exported from C++.

    Since Qt has alignment flags in its C++ API, it was a logical conclusion that these would be the same values that got exported to QML.

    Cheers,
    _

  6. The following user says thank you to anda_skoa for this useful post:

    sedi (20th April 2016)

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