Method update

launcher/ui/instanceview/VisualGroup.cpp:52–92

VisualGroup::VisualGroup(const VisualGroup* other) : view(other->view), text(other->text), collapsed(other->collapsed) {}

void VisualGroup::update()
{
    auto temp_items = items();
    auto itemsPerRow = view->itemsPerRow();

    int numRows = qMax(1, qCeil((qreal)temp_items.size() / (qreal)itemsPerRow));
    rows = QVector<VisualRow>(numRows);

    int maxRowHeight = 0;
    int positionInRow = 0;
    int currentRow = 0;
    int offsetFromTop = 0;
    for (auto item : temp_items) {
        if (positionInRow == itemsPerRow) {
            rows[currentRow].height = maxRowHeight;
            rows[currentRow].top = offsetFromTop;
            currentRow++;
            if (currentRow >= rows.size()) {
                currentRow = rows.size() - 1;
            }
            offsetFromTop += maxRowHeight + 5;
            positionInRow = 0;
            maxRowHeight = 0;
        }
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
        QStyleOptionViewItem viewItemOption;
        view->initViewItemOption(&viewItemOption);
#else
        QStyleOptionViewItem viewItemOption = view->viewOptions();
#endif

        auto itemHeight = view->itemDelegate()->sizeHint(viewItemOption, item).height();
        if (itemHeight > maxRowHeight) {
            maxRowHeight = itemHeight;
        }
        rows[currentRow].items.append(item);
        positionInRow++;
    }
    rows[currentRow].height = maxRowHeight;
    rows[currentRow].top = offsetFromTop;
}

QPair<int, int> VisualGroup::positionOf(const QModelIndex& index) const
{