def paintEvent(self, event):
'''Handle paint *event*.'''
itemData = self.itemData(self.currentIndex())
if itemData:
# Draw main control.
painter = QtWidgets.QStylePainter(self)
painter.setPen(self.palette().color(QtGui.QPalette.Text))
option = QtWidgets.QStyleOptionComboBox()
self.initStyleOption(option)
painter.drawComplexControl(QtWidgets.QStyle.CC_ComboBox, option)
# Get QTextDocument from delegate to use for painting HTML text.
delegate = self.itemDelegate()
document = delegate.getTextDocument(
option, self.itemData(self.currentIndex()))
style = painter.style() # QtWidgets.QApplication.style()
paint_context = QtGui.QAbstractTextDocumentLayout.PaintContext()
text_rectangle = style.subElementRect(
QtWidgets.QStyle.SE_ComboBoxFocusRect, option, self)
painter.save()
painter.translate(text_rectangle.topLeft())
painter.setClipRect(
text_rectangle.translated(-text_rectangle.topLeft()))
document.documentLayout().draw(painter, paint_context)
painter.restore()
else:
super(HtmlComboBox, self).paintEvent(event)
def sizeHint(self):
'''Return preferred size hint.'''
option = QtWidgets.QStyleOptionComboBox()
self.initStyleOption(option)
data = self.itemData(self.currentIndex())
# Get QTextDocument from delegate to use for calculating size hint.
delegate = self.itemDelegate()
document = delegate.getTextDocument(option, data)
# Adjust the size to fix issue occurring on windows.
size = QtCore.QSize(document.idealWidth(),
document.size().height() + 5)
return size