[Solved] Qt5.1 QStyledItemDelegate problem with QIcon

nibbit

Hello,

I created item delegate with syntax highlighting (it itherits from QStyledItemDelegate):
@void HihghlighterDelegate::paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const
{
if (option.state & QStyle::State_Selected)
{
QLinearGradient gradient(option.rect.topLeft(), option.rect.bottomRight()); // diagonal gradient from top-left to bottom-right
gradient.setColorAt(0, QColor(200, 200, 200, 255));
gradient.setColorAt(1, QColor(225, 225, 225, 255));
painter->fillRect(option.rect, gradient);
}
else if (option.state & QStyle::State_MouseOver)
painter->fillRect(option.rect, option.palette.midlight());

QStyleOptionViewItemV4 options = option;
options.rect.setTop(options.rect.y()-4);

painter->save();

m_textDocument->setPlainText(index.data(Qt::DisplayRole).toString());

painter->translate(options.rect.left(), options.rect.top());
QRect clip(0, 0, options.rect.width(), options.rect.height());
m_textDocument->drawContents(painter, clip);

//QIcon icon = QIcon(":/icons/LED_OFF.png");
QIcon icon = QIcon(qvariant_cast<QPixmap>(index.data(Qt::DecorationRole)));
if (!icon.isNull())
    qDebug() << "icon detected";
icon.paint(painter, QRect(0, 0, 16, 16), Qt::AlignVCenter|Qt::AlignLeft);

painter->restore();

}
@

The whole function works as I need but now I am trying to add Icon but:
QIcon(qvariant_cast<QPixmap>(index.data(Qt::DecorationRole)));
seems to doesn't work but commented QIcon from resources works ok. Do you have any ideas what I am doing wrong?

When I am not using custom delegate then icons are visible.

nibbit

Sorry I am blind
I was making qvariant from QPixmap instead of QIcon :)

quick copy paste is bad idea sometimes.

SGaist

Hi,

Great you found out !

Can you also update the thread title prepending [solved] ? So other forum users may know a solution has been found :)