The documentation for QAbstractItemDelegate::createEditor states that in order for an editor widget to be displayed with an opaque background one must specify setAutoFillBackground(false) on it. However, I can't seem to place an editor widget without it completely covering the custom display code I have in my ::paint method of the QItemDelegate. However, if I also maintain a call to QItemDelegate::paint(...) the default data (Qt::DisplayRole, Qt::DecorationRole) will be displayed with the widget opaquely.

I have attached a sample project that implements a very simple QStringList based model that returns only a string for data, and a simple QItemDelegate. The expected behavior I believe is for the QPushButton editor widget to show on top of the display that is currently in each row, without seemingly painting a white background (or blue in this case for selection) behind it.