Q_ENUMS, QItemEditorFactory

[Kunchok]

I would like to register a QItemEditorCreatorBase that would handle properties represented as Q_ENUMS by presenting a QComboBox with a list of possible enum values represented as strings.

I know how to make the QItemEditorCreatorBase but can't work out how to do the registration.
QItemEditorFactory::registerEditor takes a QVariant::Type but how do I get a QVariant type id for an enum? I've tried a few things but got nowhere.

Any help very gratefully received.

[wysota]

See Q_DECLARE_METATYPE().

[jpn]

Or qRegisterMetaType() to be exact.

[wysota]

Hmm... declaring the meta type should be enough, I think. qRegisterMetaType() is for using the type in signals and slots, isn't it? Or am I mistaken?

[jpn]

You need the integer value returned by qRegisterMetaType() to be able to register editors to QItemEditorFactory.

[wysota]

I guess using QMetaType::type() or qMetaTypeId() is an option as well.

[jpn]

I guess using QMetaType::type() or qMetaTypeId() is an option as well.

Ahh, seems so. Thanks, I hadn't noticed qMetaTypeId() before.

[Kunchok]

Thanks for trying to help

I had already tried Q_DECLARE_METATYPE() but never saw anything sensible when I tried to dump the QVariant.type().
i.e.
obj->getProperty("FOO").type()

I always seemed to get QVariant::Int

My workaround was to define a new subclass for QItemDelegate that holds a map from row to QMetaProperty and then examine QMetaProperty.isEnum(). Not very nice.

I will try again with a tiny example and post the code here. There definitely is a discontinuity between enum and other types in the Qt MetaProperty model (but hey Trolltech are solving these difficult problems of mapping C++ into a more dynamic language so we don't have to .

I think I should be reading this forum every day! You guys are way ahead of me with Qt.

Thanks again

[wysota]

enums are really ints. You have to be sure you are explicitely telling the variant that you are not passing an integer but your enum. Could you show us the Q_PROPERTY declaration of the property and the setter method for the property?