Method setExpanded

plugins/quickopen/expandingtree/expandingwidgetmodel.cpp:343–391

}

void ExpandingWidgetModel::setExpanded(const QModelIndex& idx_, bool expanded)
{
    Q_ASSERT(idx_.model() == this);

    QModelIndex idx(firstColumn(idx_));

    qCDebug(PLUGIN_QUICKOPEN) << "Setting expand-state of row " << idx.row() << " to " << expanded;
    if (!idx.isValid()) {
        return;
    }

    if (isExpandable(idx)) {
        if (!expanded && m_expandingWidgets.contains(idx) && m_expandingWidgets[idx]) {
            m_expandingWidgets[idx]->hide();
        }

        m_expandState[idx] = expanded ? Expanded : Expandable;

        if (expanded) {
            partiallyUnExpand(idx);
        }

        if (expanded && !m_expandingWidgets.contains(idx)) {
            QVariant v = data(idx, CodeCompletionModel::ExpandingWidget);

            if (v.canConvert<QWidget*>()) {
                m_expandingWidgets[idx] = v.value<QWidget*>();
            } else if (v.canConvert<QString>()) {
                //Create a html widget that shows the given string
                auto* edit = new KTextEdit(v.toString());
                edit->setReadOnly(true);
                edit->resize(200, 50); //Make the widget small so it embeds nicely.
                m_expandingWidgets[idx] = edit;
            } else {
                m_expandingWidgets[idx] = nullptr;
            }
        }

        //Eventually partially expand the row
        if (!expanded && firstColumn(mapToSource(treeView()->currentIndex())) == idx && (isPartiallyExpanded(idx) == ExpandingWidgetModel::ExpansionType::NotExpanded)) {
            rowSelected(idx); //Partially expand the row.
        }
        emit dataChanged(idx, idx);

        if (treeView()) {
            treeView()->scrollTo(mapFromSource(idx));
        }
    }
}

int ExpandingWidgetModel::basicRowHeight(const QModelIndex& idx_) const
{