QStyledItemDelegate.initStyleOption should modify option parameter to QStyleOptionViewItemV4 instead of QStyleOptionViewItem

When reimplementing paint in a subclass. Use the initStyleOption() to set up the option in the same way as the QStyledItemDelegate; the option will always be an instance of QStyleOptionViewItemV4. Please see its class description for information on its contents.

Qt doc reference: http://qt-project.org/doc/qt-4.8/qstyleditemdelegate.html#paint

Works as expected in PyQt4.

Sample code
–
-# - coding: utf-8

from PySide import QtCore, QtGui
#from PyQt4 import QtCore, QtGui

class TaskItemDelegate(QtGui.QStyledItemDelegate):
def _init_(self):
QtGui.QStyledItemDelegate._init_(self)
return

def paint(self, painter, option, index):
self.initStyleOption(option, index)

1. Should return 4, per http://qt-project.org/doc/qt-4.8/qstyleditemdelegate.html#paint
2. PySide returns 1, PyQt4 returns 4
   print(option.version)
   return

def sizeHint(self, option, index):
size = QtCore.QSize(option.rect.width(), option.fontMetrics.lineSpacing() * 5)
return size

if _name=="main_":
import sys
app = QtGui.QApplication(sys.argv)

model = QtGui.QStringListModel(["aaa", "bbb"])
item = TaskItemDelegate()

view = QtGui.QListView()
view.setModel(model)
view.setItemDelegate(item)
view.show()
app.exec_()
–