delegates

[hgedek]

I am learning QTableWidget.I wanted to show only images at QTableWidgetItems.So I tried to add labels to tablewidget cells.(there is an example:QSpinBox).
Is there another way of this:Because if I use QTableWidgetItem ->icon() function;I can still show a linedit in cells.But I want only images.

[jpn]

Do you mean that you would like icons to fill whole cell?

[hgedek]

yes.all cell will show image.

[jpn]

It should be as simple as subclassing QItemDelegate and reimplementing QItemDelegate::paint() more or less in the following way:

void MyItemDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const
{
    QIcon icon = qvariant_cast<QIcon>(index.data(Qt::DecorationRole));
    drawBackground(painter, option, index);
    drawDecoration(painter, option, option.rect, icon.pixmap(option.rect.size()));
    drawFocus(painter, option, option.rect);
}

void MyItemDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const
{
    QIcon icon = qvariant_cast<QIcon>(index.data(Qt::DecorationRole));
    drawBackground(painter, option, index);
    drawDecoration(painter, option, option.rect, icon.pixmap(option.rect.size()));
    drawFocus(painter, option, option.rect);
}

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Then set the delegate to your table widget and use QTableWidgetItem::setIcon() to set icons.