[Qt-qml] Using enums in QML signal handlers

[michael.brasser at nokia.com]

Hi Olli,

This sounds like a bug -- could you please create a report at bugreports.qt.nokia.com<http://bugreports.qt.nokia.com>?

Thanks,
Michael

On 02/11/2010, at 11:06 PM, ext ext-salonen.olli at nokia.com<mailto:ext-salonen.olli at nokia.com> wrote:

Hi,

I have declared an enum in a class and use it as an argument in a signal. I can use the enum in QML, but I cannot read the parameter in the signal handler. Is it supposed to work somehow?

Example:

class MyObject {
  Q_OBJECT
  Q_ENUMS(MyEnum)
  Q_PROPERTY(MyEnum value READ value NOTIFY valueChanged)
public:
  enum MyEnum { Value1, Value2};
signals:
  void valueChanged(MyEnum value);
}

Qml file
----------
MyObject {
  onValueChanged: console.debug(“Value is “ + value)
}

This fails with the following output:
QMetaProperty::read: Unable to handle unregistered datatype 'MyEnum' for property 'QDeclarativeBoundSignalParameters::value'

I also tried to rename the signal parameter type to MyObject::MyEnum, but this did not work either. I can use the value correctly if I access it as a property, or if I assign enum values such as “property int myvalue: MyObject.Value1”.

Thanks,
Olli
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