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void ThemeItemDelegate::paint(QPainter *pPainter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
if (option.state == QStyle::State_HasFocus) {
QRect rect = option.rect;
QLinearGradient gradient(0, 0, rect.width(), rect.height());
gradient.setColorAt(0, Qt::white);
gradient.setColorAt(0.5, Qt::blue);
gradient.setColorAt(1, Qt::green);
pPainter->setBrush(gradient);
pPainter->drawRect(rect);
}
QItemDelegate::paint(pPainter, option, index);
}