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camel case or underscores or mixed?



  • I noticed Qt creator uses mixed styles and I was wondering if a reason existed for this.

    It generates signals/slots that use underscores and all classes and functions seem to be camel case. Is this standard? Is this what I should do as a Qt developer?

    Is this in the docs some where?

    Thanks



  • Hi @Goddard,

    It generates signals/slots that use underscores and all classes and functions seem to be camel case.

    What do you mean by it "generates signal/slots"? I'm a bit of a Qt Creator n00b - just use it as a glorified text editor most of the time, so I'm not familiar with its code generation abilities, but what you describe does sound odd.

    Is this standard? Is this what I should do as a Qt developer?

    I'd say not. Most (all?) of the Qt classes use camelCase for signals; eg QObject::objectNameChanged.

    It generates signals/slots that use underscores and all classes and functions seem to be camel case.

    So while you're welcome (AFAIK) to use any style you like, I certainly wouldn't say underscores are recommended just based on whatever Qt Creator behaviour you're seeing.

    Cheers.


  • Moderators

    @Paul Colby

    What do you mean by it "generates signal/slots"?

    See http://doc.qt.io/qt-5/designer-using-a-ui-file.html#widgets-and-dialogs-with-auto-connect

    @Goddard said:

    It generates signals/slots that use underscores and all classes and functions seem to be camel case. Is this standard? Is this what I should do as a Qt developer?

    As a developer in general, you are free to do whatever you want. Pick your preferred style and stick to it. The most important thing is to be consistent.

    Qt Designer's auto-connector uses underscores. Unfortunately, this is inconsistent with Qt's coding conventions. Qt's public API uses camel casing only, not underscores.

    Personally, I don't use the auto-connector.

    I noticed Qt creator uses mixed styles and I was wondering if a reason existed for this.

    No good reason, really.


  • Qt Champions 2017

    @Goddard

    It generates signals/slots that use underscores and all classes and functions seem to be camel case. Is this standard? Is this what I should do as a Qt developer?

    I personally prefer camelcase, as underscore reminds me too much of C and its many quirks, and to be honest I don't see adding extra underscores as improvement on readability. Still, as JKSH said, it's just a matter of preference and you're free to choose what suits you best.

    @JKSH said:

    Personally, I don't use the auto-connector.

    Too magic for me either ...


  • Moderators

    After some time working with a giant project that uses Qt, MFC, STL nad WinAPI in different parts all I can say is that naming convention doesn't really make a difference, just do yourself a giant favor and pick one and stick to it.

    And I wouldn't use the auto connection feature. It might be tempting for people used to visual designers like in C# or Delphi, but it's quite different in details and not particularly good for maintenance anyway (renaming, refactoring etc).


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