Combining pyqtEnum and pyqtProperty

[Phil Thompson]

On 08/12/2022 03:45, Arthur Gordon-Wright wrote:
> Hi,
> 
> I have some code that defines an enum nested in a class, defines a
> pyqtProperty using that enum, then uses the value of that to control a
> stylesheet.
> 
> In PyQt5 5.15, I use the Q_ENUM macro to annotate the enum class after
> defining it, and everything works fine. Changing the value of the
> pyqtProperty after creating the widget then repolishing it causes the
> colour to change. This works whether the property's class is an enum or
> just a normal object.
> 
> In PyQt6 6.4 (and 6.3), I use pyqtEnum as a decorator on the enum class
> (also tried using it afterwards in the same place I'd use Q_ENUM), and
> while the widget initially appears to have the correct colour, it won't
> change if I update the property.
> 
> (In both cases, I actually have to use enum.IntEnum, as I get a 
> hardcrash
> 0xC0000409 during the polishing phase when using a normal Enum).
> 
> Perhaps I'm doing something wrong on the stylesheet, but I've tried 
> every
> possible syntax I can think of: using the enum member name, member 
> value,
> putting it in quotes or not etc.
> 
> I've attached two examples in PyQt5 and PyQt6, the only real difference
> between them is in:
> 
> class ProgressBar(QProgressBar):
>     class Status(enum.IntEnum):
>         success = 0
>         error = 1
>     Q_ENUM(Status)
> 
> v.s.
> 
> class ProgressBar(QProgressBar):
>     @pyqtEnum
>     class Status(enum.IntEnum):
>         success = 0
>         error = 1
> 
> Any advice is much appreciated, can't work out if this is a bug or just 
> me!

Should be fixed in the next PyQt6 snapshot.

Thanks,
Phil
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