I've subclassed a QStyledItemDelegate with the goal to draw a pixmap in the centre of a QTableView’s cell. Our pixmap does get rendered correctly but we lose all style defined in the stylesheet. Removing the delegate restores the style.

I would like to understand how to use a QStyledItemDelegate while maintaining the existing style. Here’s a PySide delegate that I thought would simply render the cell as is. Applying this delegate removes the style.

Qt Code: 
  1. class MyStyleDelegate(QtGui.QStyledItemDelegate):
  2.     def __init__(self, parent=None):
  3.         super(MyStyleDelegate, self).__init__(parent)
  4.  
  5.     def paint(self, painter, option, index):
  6.         super(MyStyleDelegate, self).paint(painter, option, index)
  7.  
  8.         modelIndex = index
  9.         model = index.model()
  10.         if isinstance(model, QtGui.QAbstractProxyModel):
  11.             modelIndex = model.mapToSource(index)
  12.  
  13.         options = QtGui.QStyleOptionViewItemV4(option)
  14.         self.initStyleOption(options, index)
  15.         style = options.widget.style() if options.widget else  QtGui.QApplication.style()  
  16.         style.drawControl(style.CE_ItemViewItem, options, painter, options.widget)
  17.         QtGui.QStyledItemDelegate.paint(self, painter, option, modelIndex)
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When I step through this code, our widget is always None. That seems to contradict all the examples that I've found.

We're also differing from the examples and using a QTableView with a proxymodel but from what I've read that should not affect the style.

Any help would be welcomed.

(This has been cross-posted from a colleague's post on http://qt-project.org/forums/viewthread/37757/. We have yet to decide which is the best resource for our PySide questions.)