QTreeView and itemDelegate code

**alexandernst** · 21st April 2010, 20:29

This code worked just fine some months ago (maybe half year), and now it's not working. Why could it be? Message error is ''NoneType' object has no attribute 'style'' from line 12.

Qt Code:

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def paint(self, painter, option, index):
        if not index.isValid():
            return
        painter.translate(0, 0)
        options = QStyleOptionViewItemV4(option)
        self.initStyleOption(options, index)
        painter.save()
        painter.setRenderHint(QPainter.Antialiasing, True)
        doc = QTextDocument()
        doc.setHtml(options.text)
        options.text = ""
        options.widget.style().drawControl(QStyle.CE_ItemViewItem, options, painter, options.widget)  #<---ERROR
        painter.translate(options.rect.left() + self.sizeDp(index) + 3, options.rect.top()) #paint text right after the dp + 3pixels
        rect = QRectF(0, 0, options.rect.width(), options.rect.height())
        doc.drawContents(painter, rect)
        painter.restore()

def paint(self, painter, option, index):
        if not index.isValid():
            return
        painter.translate(0, 0)
        options = QStyleOptionViewItemV4(option)
        self.initStyleOption(options, index)
        painter.save()
        painter.setRenderHint(QPainter.Antialiasing, True)
        doc = QTextDocument()
        doc.setHtml(options.text)
        options.text = ""
        options.widget.style().drawControl(QStyle.CE_ItemViewItem, options, painter, options.widget)  #<---ERROR
        painter.translate(options.rect.left() + self.sizeDp(index) + 3, options.rect.top()) #paint text right after the dp + 3pixels
        rect = QRectF(0, 0, options.rect.width(), options.rect.height())
        doc.drawContents(painter, rect)
        painter.restore()

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Why could this be happening?

**alexandernst** · 22nd April 2010, 17:00

the solution was

options.widget.style().drawControl(QStyle.CE_ItemV iewItem, options, painter, options.widget) #<---ERROR

QApplication.style().drawControl(QStyle.CE_ItemVie wItem, options, painter, options.widget)