TableView: access model properties from delegate

I have a TableView for which I’ve defined my own itemDelegate. Now, from within this delegate I can access the value for the column using styleData.value, but I’d also need to access the other properties in this same item but I can’t find how to. I need this, because the text styling needs to change depending on some other property of the item model. Any ideas? thanks! (btw I also posted this on here: http://stackoverflow.com/questions/22874387/qml-tableview-access-model-properties-from-delegate)